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-rw-r--r--fs/nfs/delegation.c47
-rw-r--r--fs/nfs/delegation.h17
-rw-r--r--fs/nfs/dir.c73
-rw-r--r--fs/nfs/direct.c10
-rw-r--r--fs/nfs/file.c34
-rw-r--r--fs/nfs/inode.c292
-rw-r--r--fs/nfs/nfs2xdr.c1
-rw-r--r--fs/nfs/nfs3proc.c92
-rw-r--r--fs/nfs/nfs3xdr.c1
-rw-r--r--fs/nfs/nfs4_fs.h57
-rw-r--r--fs/nfs/nfs4proc.c846
-rw-r--r--fs/nfs/nfs4state.c265
-rw-r--r--fs/nfs/nfs4xdr.c305
-rw-r--r--fs/nfs/proc.c45
-rw-r--r--fs/nfs/read.c10
-rw-r--r--fs/nfs/unlink.c3
-rw-r--r--fs/nfs/write.c22
17 files changed, 1351 insertions, 769 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index d7f7eb669d03..618a327027b3 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -31,11 +31,42 @@ static void nfs_free_delegation(struct nfs_delegation *delegation)
kfree(delegation);
}
+static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_state *state)
+{
+ struct inode *inode = state->inode;
+ struct file_lock *fl;
+ int status;
+
+ for (fl = inode->i_flock; fl != 0; fl = fl->fl_next) {
+ if (!(fl->fl_flags & (FL_POSIX|FL_FLOCK)))
+ continue;
+ if ((struct nfs_open_context *)fl->fl_file->private_data != ctx)
+ continue;
+ status = nfs4_lock_delegation_recall(state, fl);
+ if (status >= 0)
+ continue;
+ switch (status) {
+ default:
+ printk(KERN_ERR "%s: unhandled error %d.\n",
+ __FUNCTION__, status);
+ case -NFS4ERR_EXPIRED:
+ /* kill_proc(fl->fl_pid, SIGLOST, 1); */
+ case -NFS4ERR_STALE_CLIENTID:
+ nfs4_schedule_state_recovery(NFS_SERVER(inode)->nfs4_state);
+ goto out_err;
+ }
+ }
+ return 0;
+out_err:
+ return status;
+}
+
static void nfs_delegation_claim_opens(struct inode *inode)
{
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_open_context *ctx;
struct nfs4_state *state;
+ int err;
again:
spin_lock(&inode->i_lock);
@@ -47,9 +78,12 @@ again:
continue;
get_nfs_open_context(ctx);
spin_unlock(&inode->i_lock);
- if (nfs4_open_delegation_recall(ctx->dentry, state) < 0)
- return;
+ err = nfs4_open_delegation_recall(ctx->dentry, state);
+ if (err >= 0)
+ err = nfs_delegation_claim_locks(ctx, state);
put_nfs_open_context(ctx);
+ if (err != 0)
+ return;
goto again;
}
spin_unlock(&inode->i_lock);
@@ -85,6 +119,10 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
struct nfs_delegation *delegation;
int status = 0;
+ /* Ensure we first revalidate the attributes and page cache! */
+ if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR)))
+ __nfs_revalidate_inode(NFS_SERVER(inode), inode);
+
delegation = nfs_alloc_delegation();
if (delegation == NULL)
return -ENOMEM;
@@ -111,8 +149,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
}
}
spin_unlock(&clp->cl_lock);
- if (delegation != NULL)
- kfree(delegation);
+ kfree(delegation);
return status;
}
@@ -138,7 +175,7 @@ static void nfs_msync_inode(struct inode *inode)
/*
* Basic procedure for returning a delegation to the server
*/
-int nfs_inode_return_delegation(struct inode *inode)
+int __nfs_inode_return_delegation(struct inode *inode)
{
struct nfs4_client *clp = NFS_SERVER(inode)->nfs4_state;
struct nfs_inode *nfsi = NFS_I(inode);
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index 3f6c45a29d6a..2fcc30de924b 100644
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -25,7 +25,7 @@ struct nfs_delegation {
int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
-int nfs_inode_return_delegation(struct inode *inode);
+int __nfs_inode_return_delegation(struct inode *inode);
int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid);
struct inode *nfs_delegation_find_inode(struct nfs4_client *clp, const struct nfs_fh *fhandle);
@@ -38,6 +38,7 @@ void nfs_delegation_reap_unclaimed(struct nfs4_client *clp);
/* NFSv4 delegation-related procedures */
int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid);
int nfs4_open_delegation_recall(struct dentry *dentry, struct nfs4_state *state);
+int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl);
static inline int nfs_have_delegation(struct inode *inode, int flags)
{
@@ -47,11 +48,25 @@ static inline int nfs_have_delegation(struct inode *inode, int flags)
return 1;
return 0;
}
+
+static inline int nfs_inode_return_delegation(struct inode *inode)
+{
+ int err = 0;
+
+ if (NFS_I(inode)->delegation != NULL)
+ err = __nfs_inode_return_delegation(inode);
+ return err;
+}
#else
static inline int nfs_have_delegation(struct inode *inode, int flags)
{
return 0;
}
+
+static inline int nfs_inode_return_delegation(struct inode *inode)
+{
+ return 0;
+}
#endif
#endif
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 2df639f143e8..c0d1a214572c 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -532,6 +532,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
my_entry.eof = 0;
my_entry.fh = &fh;
my_entry.fattr = &fattr;
+ nfs_fattr_init(&fattr);
desc->entry = &my_entry;
while(!desc->entry->eof) {
@@ -565,8 +566,6 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
}
}
unlock_kernel();
- if (desc->error < 0)
- return desc->error;
if (res < 0)
return res;
return 0;
@@ -803,6 +802,7 @@ static int nfs_dentry_delete(struct dentry *dentry)
*/
static void nfs_dentry_iput(struct dentry *dentry, struct inode *inode)
{
+ nfs_inode_return_delegation(inode);
if (dentry->d_flags & DCACHE_NFSFS_RENAMED) {
lock_kernel();
inode->i_nlink--;
@@ -853,12 +853,6 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru
dentry->d_op = NFS_PROTO(dir)->dentry_ops;
lock_kernel();
- /* Revalidate parent directory attribute cache */
- error = nfs_revalidate_inode(NFS_SERVER(dir), dir);
- if (error < 0) {
- res = ERR_PTR(error);
- goto out_unlock;
- }
/* If we're doing an exclusive create, optimize away the lookup */
if (nfs_is_exclusive_create(dir, nd))
@@ -916,7 +910,6 @@ static int is_atomic_open(struct inode *dir, struct nameidata *nd)
static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct dentry *res = NULL;
- struct inode *inode = NULL;
int error;
/* Check that we are indeed trying to open this file */
@@ -930,8 +923,10 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
dentry->d_op = NFS_PROTO(dir)->dentry_ops;
/* Let vfs_create() deal with O_EXCL */
- if (nd->intent.open.flags & O_EXCL)
- goto no_entry;
+ if (nd->intent.open.flags & O_EXCL) {
+ d_add(dentry, NULL);
+ goto out;
+ }
/* Open the file on the server */
lock_kernel();
@@ -945,32 +940,30 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
if (nd->intent.open.flags & O_CREAT) {
nfs_begin_data_update(dir);
- inode = nfs4_atomic_open(dir, dentry, nd);
+ res = nfs4_atomic_open(dir, dentry, nd);
nfs_end_data_update(dir);
} else
- inode = nfs4_atomic_open(dir, dentry, nd);
+ res = nfs4_atomic_open(dir, dentry, nd);
unlock_kernel();
- if (IS_ERR(inode)) {
- error = PTR_ERR(inode);
+ if (IS_ERR(res)) {
+ error = PTR_ERR(res);
switch (error) {
/* Make a negative dentry */
case -ENOENT:
- inode = NULL;
- break;
+ res = NULL;
+ goto out;
/* This turned out not to be a regular file */
+ case -EISDIR:
+ case -ENOTDIR:
+ goto no_open;
case -ELOOP:
if (!(nd->intent.open.flags & O_NOFOLLOW))
goto no_open;
- /* case -EISDIR: */
/* case -EINVAL: */
default:
- res = ERR_PTR(error);
goto out;
}
- }
-no_entry:
- res = d_add_unique(dentry, inode);
- if (res != NULL)
+ } else if (res != NULL)
dentry = res;
nfs_renew_times(dentry);
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
@@ -1014,7 +1007,7 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
*/
lock_kernel();
verifier = nfs_save_change_attribute(dir);
- ret = nfs4_open_revalidate(dir, dentry, openflags);
+ ret = nfs4_open_revalidate(dir, dentry, openflags, nd);
if (!ret)
nfs_set_verifier(dentry, verifier);
unlock_kernel();
@@ -1137,7 +1130,7 @@ static int nfs_create(struct inode *dir, struct dentry *dentry, int mode,
lock_kernel();
nfs_begin_data_update(dir);
- error = NFS_PROTO(dir)->create(dir, dentry, &attr, open_flags);
+ error = NFS_PROTO(dir)->create(dir, dentry, &attr, open_flags, nd);
nfs_end_data_update(dir);
if (error != 0)
goto out_err;
@@ -1264,6 +1257,9 @@ dentry->d_parent->d_name.name, dentry->d_name.name);
sprintf(silly, ".nfs%*.*lx",
i_inosize, i_inosize, dentry->d_inode->i_ino);
+ /* Return delegation in anticipation of the rename */
+ nfs_inode_return_delegation(dentry->d_inode);
+
sdentry = NULL;
do {
char *suffix = silly + slen - countersize;
@@ -1291,6 +1287,7 @@ dentry->d_parent->d_name.name, dentry->d_name.name);
nfs_begin_data_update(dentry->d_inode);
error = NFS_PROTO(dir)->rename(dir, &dentry->d_name,
dir, &qsilly);
+ nfs_mark_for_revalidate(dentry->d_inode);
nfs_end_data_update(dentry->d_inode);
} else
error = NFS_PROTO(dir)->rename(dir, &dentry->d_name,
@@ -1332,11 +1329,13 @@ static int nfs_safe_remove(struct dentry *dentry)
nfs_begin_data_update(dir);
if (inode != NULL) {
+ nfs_inode_return_delegation(inode);
nfs_begin_data_update(inode);
error = NFS_PROTO(dir)->remove(dir, &dentry->d_name);
/* The VFS may want to delete this inode */
if (error == 0)
inode->i_nlink--;
+ nfs_mark_for_revalidate(inode);
nfs_end_data_update(inode);
} else
error = NFS_PROTO(dir)->remove(dir, &dentry->d_name);
@@ -1438,17 +1437,14 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
old_dentry->d_parent->d_name.name, old_dentry->d_name.name,
dentry->d_parent->d_name.name, dentry->d_name.name);
- /*
- * Drop the dentry in advance to force a new lookup.
- * Since nfs_proc_link doesn't return a file handle,
- * we can't use the existing dentry.
- */
lock_kernel();
- d_drop(dentry);
-
nfs_begin_data_update(dir);
nfs_begin_data_update(inode);
error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name);
+ if (error == 0) {
+ atomic_inc(&inode->i_count);
+ d_instantiate(dentry, inode);
+ }
nfs_end_data_update(inode);
nfs_end_data_update(dir);
unlock_kernel();
@@ -1512,9 +1508,11 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
*/
if (!new_inode)
goto go_ahead;
- if (S_ISDIR(new_inode->i_mode))
- goto out;
- else if (atomic_read(&new_dentry->d_count) > 2) {
+ if (S_ISDIR(new_inode->i_mode)) {
+ error = -EISDIR;
+ if (!S_ISDIR(old_inode->i_mode))
+ goto out;
+ } else if (atomic_read(&new_dentry->d_count) > 2) {
int err;
/* copy the target dentry's name */
dentry = d_alloc(new_dentry->d_parent,
@@ -1539,7 +1537,8 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
#endif
goto out;
}
- }
+ } else
+ new_inode->i_nlink--;
go_ahead:
/*
@@ -1549,6 +1548,7 @@ go_ahead:
nfs_wb_all(old_inode);
shrink_dcache_parent(old_dentry);
}
+ nfs_inode_return_delegation(old_inode);
if (new_inode)
d_delete(new_dentry);
@@ -1558,6 +1558,7 @@ go_ahead:
nfs_begin_data_update(old_inode);
error = NFS_PROTO(old_dir)->rename(old_dir, &old_dentry->d_name,
new_dir, &new_dentry->d_name);
+ nfs_mark_for_revalidate(old_inode);
nfs_end_data_update(old_inode);
nfs_end_data_update(new_dir);
nfs_end_data_update(old_dir);
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 6537f2c4ae44..b497c71384e8 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -655,7 +655,6 @@ nfs_file_direct_read(struct kiocb *iocb, char __user *buf, size_t count, loff_t
struct file *file = iocb->ki_filp;
struct nfs_open_context *ctx =
(struct nfs_open_context *) file->private_data;
- struct dentry *dentry = file->f_dentry;
struct address_space *mapping = file->f_mapping;
struct inode *inode = mapping->host;
struct iovec iov = {
@@ -664,7 +663,8 @@ nfs_file_direct_read(struct kiocb *iocb, char __user *buf, size_t count, loff_t
};
dprintk("nfs: direct read(%s/%s, %lu@%lu)\n",
- dentry->d_parent->d_name.name, dentry->d_name.name,
+ file->f_dentry->d_parent->d_name.name,
+ file->f_dentry->d_name.name,
(unsigned long) count, (unsigned long) pos);
if (!is_sync_kiocb(iocb))
@@ -730,7 +730,6 @@ nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, size_t count,
struct file *file = iocb->ki_filp;
struct nfs_open_context *ctx =
(struct nfs_open_context *) file->private_data;
- struct dentry *dentry = file->f_dentry;
struct address_space *mapping = file->f_mapping;
struct inode *inode = mapping->host;
struct iovec iov = {
@@ -739,8 +738,9 @@ nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, size_t count,
};
dfprintk(VFS, "nfs: direct write(%s/%s(%ld), %lu@%lu)\n",
- dentry->d_parent->d_name.name, dentry->d_name.name,
- inode->i_ino, (unsigned long) count, (unsigned long) pos);
+ file->f_dentry->d_parent->d_name.name,
+ file->f_dentry->d_name.name, inode->i_ino,
+ (unsigned long) count, (unsigned long) pos);
if (!is_sync_kiocb(iocb))
goto out;
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index f6b9eda925c5..57d3e77d97ee 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -137,7 +137,8 @@ static int nfs_revalidate_file(struct inode *inode, struct file *filp)
struct nfs_inode *nfsi = NFS_I(inode);
int retval = 0;
- if ((nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE) || nfs_attribute_timeout(inode))
+ if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR))
+ || nfs_attribute_timeout(inode))
retval = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
nfs_revalidate_mapping(inode, filp->f_mapping);
return 0;
@@ -204,8 +205,8 @@ nfs_file_flush(struct file *file)
if (!status) {
status = ctx->error;
ctx->error = 0;
- if (!status && !nfs_have_delegation(inode, FMODE_READ))
- __nfs_revalidate_inode(NFS_SERVER(inode), inode);
+ if (!status)
+ nfs_revalidate_inode(NFS_SERVER(inode), inode);
}
unlock_kernel();
return status;
@@ -375,22 +376,31 @@ out_swapfile:
static int do_getlk(struct file *filp, int cmd, struct file_lock *fl)
{
+ struct file_lock *cfl;
struct inode *inode = filp->f_mapping->host;
int status = 0;
lock_kernel();
- /* Use local locking if mounted with "-onolock" */
- if (!(NFS_SERVER(inode)->flags & NFS_MOUNT_NONLM))
- status = NFS_PROTO(inode)->lock(filp, cmd, fl);
- else {
- struct file_lock *cfl = posix_test_lock(filp, fl);
-
- fl->fl_type = F_UNLCK;
- if (cfl != NULL)
- memcpy(fl, cfl, sizeof(*fl));
+ /* Try local locking first */
+ cfl = posix_test_lock(filp, fl);
+ if (cfl != NULL) {
+ locks_copy_lock(fl, cfl);
+ goto out;
}
+
+ if (nfs_have_delegation(inode, FMODE_READ))
+ goto out_noconflict;
+
+ if (NFS_SERVER(inode)->flags & NFS_MOUNT_NONLM)
+ goto out_noconflict;
+
+ status = NFS_PROTO(inode)->lock(filp, cmd, fl);
+out:
unlock_kernel();
return status;
+out_noconflict:
+ fl->fl_type = F_UNLCK;
+ goto out;
}
static int do_vfs_lock(struct file *file, struct file_lock *fl)
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 6922469d6fc5..afd75d0463fd 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -54,7 +54,7 @@
#define NFS_MAX_READAHEAD (RPC_DEF_SLOT_TABLE - 1)
static void nfs_invalidate_inode(struct inode *);
-static int nfs_update_inode(struct inode *, struct nfs_fattr *, unsigned long);
+static int nfs_update_inode(struct inode *, struct nfs_fattr *);
static struct inode *nfs_alloc_inode(struct super_block *sb);
static void nfs_destroy_inode(struct inode *);
@@ -358,6 +358,35 @@ out_no_root:
return no_root_error;
}
+static void nfs_init_timeout_values(struct rpc_timeout *to, int proto, unsigned int timeo, unsigned int retrans)
+{
+ to->to_initval = timeo * HZ / 10;
+ to->to_retries = retrans;
+ if (!to->to_retries)
+ to->to_retries = 2;
+
+ switch (proto) {
+ case IPPROTO_TCP:
+ if (!to->to_initval)
+ to->to_initval = 60 * HZ;
+ if (to->to_initval > NFS_MAX_TCP_TIMEOUT)
+ to->to_initval = NFS_MAX_TCP_TIMEOUT;
+ to->to_increment = to->to_initval;
+ to->to_maxval = to->to_initval + (to->to_increment * to->to_retries);
+ to->to_exponential = 0;
+ break;
+ case IPPROTO_UDP:
+ default:
+ if (!to->to_initval)
+ to->to_initval = 11 * HZ / 10;
+ if (to->to_initval > NFS_MAX_UDP_TIMEOUT)
+ to->to_initval = NFS_MAX_UDP_TIMEOUT;
+ to->to_maxval = NFS_MAX_UDP_TIMEOUT;
+ to->to_exponential = 1;
+ break;
+ }
+}
+
/*
* Create an RPC client handle.
*/
@@ -367,22 +396,12 @@ nfs_create_client(struct nfs_server *server, const struct nfs_mount_data *data)
struct rpc_timeout timeparms;
struct rpc_xprt *xprt = NULL;
struct rpc_clnt *clnt = NULL;
- int tcp = (data->flags & NFS_MOUNT_TCP);
+ int proto = (data->flags & NFS_MOUNT_TCP) ? IPPROTO_TCP : IPPROTO_UDP;
- /* Initialize timeout values */
- timeparms.to_initval = data->timeo * HZ / 10;
- timeparms.to_retries = data->retrans;
- timeparms.to_maxval = tcp ? RPC_MAX_TCP_TIMEOUT : RPC_MAX_UDP_TIMEOUT;
- timeparms.to_exponential = 1;
-
- if (!timeparms.to_initval)
- timeparms.to_initval = (tcp ? 600 : 11) * HZ / 10;
- if (!timeparms.to_retries)
- timeparms.to_retries = 5;
+ nfs_init_timeout_values(&timeparms, proto, data->timeo, data->retrans);
/* create transport and client */
- xprt = xprt_create_proto(tcp ? IPPROTO_TCP : IPPROTO_UDP,
- &server->addr, &timeparms);
+ xprt = xprt_create_proto(proto, &server->addr, &timeparms);
if (IS_ERR(xprt)) {
dprintk("%s: cannot create RPC transport. Error = %ld\n",
__FUNCTION__, PTR_ERR(xprt));
@@ -576,7 +595,6 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
{ NFS_MOUNT_SOFT, ",soft", ",hard" },
{ NFS_MOUNT_INTR, ",intr", "" },
{ NFS_MOUNT_POSIX, ",posix", "" },
- { NFS_MOUNT_TCP, ",tcp", ",udp" },
{ NFS_MOUNT_NOCTO, ",nocto", "" },
{ NFS_MOUNT_NOAC, ",noac", "" },
{ NFS_MOUNT_NONLM, ",nolock", ",lock" },
@@ -585,6 +603,8 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
};
struct proc_nfs_info *nfs_infop;
struct nfs_server *nfss = NFS_SB(mnt->mnt_sb);
+ char buf[12];
+ char *proto;
seq_printf(m, ",v%d", nfss->rpc_ops->version);
seq_printf(m, ",rsize=%d", nfss->rsize);
@@ -603,6 +623,18 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
else
seq_puts(m, nfs_infop->nostr);
}
+ switch (nfss->client->cl_xprt->prot) {
+ case IPPROTO_TCP:
+ proto = "tcp";
+ break;
+ case IPPROTO_UDP:
+ proto = "udp";
+ break;
+ default:
+ snprintf(buf, sizeof(buf), "%u", nfss->client->cl_xprt->prot);
+ proto = buf;
+ }
+ seq_printf(m, ",proto=%s", proto);
seq_puts(m, ",addr=");
seq_escape(m, nfss->hostname, " \t\n\\");
return 0;
@@ -611,14 +643,11 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
/*
* Invalidate the local caches
*/
-void
-nfs_zap_caches(struct inode *inode)
+static void nfs_zap_caches_locked(struct inode *inode)
{
struct nfs_inode *nfsi = NFS_I(inode);
int mode = inode->i_mode;
- spin_lock(&inode->i_lock);
-
NFS_ATTRTIMEO(inode) = NFS_MINATTRTIMEO(inode);
NFS_ATTRTIMEO_UPDATE(inode) = jiffies;
@@ -627,7 +656,12 @@ nfs_zap_caches(struct inode *inode)
nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE;
else
nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE;
+}
+void nfs_zap_caches(struct inode *inode)
+{
+ spin_lock(&inode->i_lock);
+ nfs_zap_caches_locked(inode);
spin_unlock(&inode->i_lock);
}
@@ -644,16 +678,13 @@ static void nfs_zap_acl_cache(struct inode *inode)
}
/*
- * Invalidate, but do not unhash, the inode
+ * Invalidate, but do not unhash, the inode.
+ * NB: must be called with inode->i_lock held!
*/
-static void
-nfs_invalidate_inode(struct inode *inode)
+static void nfs_invalidate_inode(struct inode *inode)
{
- umode_t save_mode = inode->i_mode;
-
- make_bad_inode(inode);
- inode->i_mode = save_mode;
- nfs_zap_caches(inode);
+ set_bit(NFS_INO_STALE, &NFS_FLAGS(inode));
+ nfs_zap_caches_locked(inode);
}
struct nfs_find_desc {
@@ -753,7 +784,8 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
else
init_special_inode(inode, inode->i_mode, fattr->rdev);
- nfsi->read_cache_jiffies = fattr->timestamp;
+ nfsi->read_cache_jiffies = fattr->time_start;
+ nfsi->last_updated = jiffies;
inode->i_atime = fattr->atime;
inode->i_mtime = fattr->mtime;
inode->i_ctime = fattr->ctime;
@@ -821,6 +853,11 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr)
filemap_fdatawait(inode->i_mapping);
nfs_wb_all(inode);
}
+ /*
+ * Return any delegations if we're going to change ACLs
+ */
+ if ((attr->ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID)) != 0)
+ nfs_inode_return_delegation(inode);
error = NFS_PROTO(inode)->setattr(dentry, &fattr, attr);
if (error == 0)
nfs_refresh_inode(inode, &fattr);
@@ -877,12 +914,10 @@ static int nfs_wait_on_inode(struct inode *inode)
sigset_t oldmask;
int error;
- atomic_inc(&inode->i_count);
rpc_clnt_sigmask(clnt, &oldmask);
error = wait_on_bit_lock(&nfsi->flags, NFS_INO_REVALIDATING,
nfs_wait_schedule, TASK_INTERRUPTIBLE);
rpc_clnt_sigunmask(clnt, &oldmask);
- iput(inode);
return error;
}
@@ -973,13 +1008,18 @@ void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx)
spin_unlock(&inode->i_lock);
}
-struct nfs_open_context *nfs_find_open_context(struct inode *inode, int mode)
+/*
+ * Given an inode, search for an open context with the desired characteristics
+ */
+struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode)
{
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_open_context *pos, *ctx = NULL;
spin_lock(&inode->i_lock);
list_for_each_entry(pos, &nfsi->open_files, list) {
+ if (cred != NULL && pos->cred != cred)
+ continue;
if ((pos->mode & mode) == mode) {
ctx = get_nfs_open_context(pos);
break;
@@ -1021,15 +1061,11 @@ int nfs_open(struct inode *inode, struct file *filp)
ctx->mode = filp->f_mode;
nfs_file_set_open_context(filp, ctx);
put_nfs_open_context(ctx);
- if ((filp->f_mode & FMODE_WRITE) != 0)
- nfs_begin_data_update(inode);
return 0;
}
int nfs_release(struct inode *inode, struct file *filp)
{
- if ((filp->f_mode & FMODE_WRITE) != 0)
- nfs_end_data_update(inode);
nfs_file_clear_open_context(filp);
return 0;
}
@@ -1044,8 +1080,6 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
int status = -ESTALE;
struct nfs_fattr fattr;
struct nfs_inode *nfsi = NFS_I(inode);
- unsigned long verifier;
- unsigned long cache_validity;
dfprintk(PAGECACHE, "NFS: revalidating (%s/%Ld)\n",
inode->i_sb->s_id, (long long)NFS_FILEID(inode));
@@ -1070,8 +1104,6 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
}
}
- /* Protect against RPC races by saving the change attribute */
- verifier = nfs_save_change_attribute(inode);
status = NFS_PROTO(inode)->getattr(server, NFS_FH(inode), &fattr);
if (status != 0) {
dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) getattr failed, error=%d\n",
@@ -1085,28 +1117,20 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
goto out;
}
- status = nfs_update_inode(inode, &fattr, verifier);
+ spin_lock(&inode->i_lock);
+ status = nfs_update_inode(inode, &fattr);
if (status) {
+ spin_unlock(&inode->i_lock);
dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) refresh failed, error=%d\n",
inode->i_sb->s_id,
(long long)NFS_FILEID(inode), status);
goto out;
}
- spin_lock(&inode->i_lock);
- cache_validity = nfsi->cache_validity;
- nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE;
-
- /*
- * We may need to keep the attributes marked as invalid if
- * we raced with nfs_end_attr_update().
- */
- if (verifier == nfsi->cache_change_attribute)
- nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
spin_unlock(&inode->i_lock);
nfs_revalidate_mapping(inode, inode->i_mapping);
- if (cache_validity & NFS_INO_INVALID_ACL)
+ if (nfsi->cache_validity & NFS_INO_INVALID_ACL)
nfs_zap_acl_cache(inode);
dfprintk(PAGECACHE, "NFS: (%s/%Ld) revalidation complete\n",
@@ -1167,7 +1191,7 @@ void nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
if (S_ISDIR(inode->i_mode)) {
memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
/* This ensures we revalidate child dentries */
- nfsi->cache_change_attribute++;
+ nfsi->cache_change_attribute = jiffies;
}
spin_unlock(&inode->i_lock);
@@ -1199,20 +1223,19 @@ void nfs_end_data_update(struct inode *inode)
struct nfs_inode *nfsi = NFS_I(inode);
if (!nfs_have_delegation(inode, FMODE_READ)) {
- /* Mark the attribute cache for revalidation */
- spin_lock(&inode->i_lock);
- nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
- /* Directories and symlinks: invalidate page cache too */
- if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))
+ /* Directories and symlinks: invalidate page cache */
+ if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) {
+ spin_lock(&inode->i_lock);
nfsi->cache_validity |= NFS_INO_INVALID_DATA;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&inode->i_lock);
+ }
}
- nfsi->cache_change_attribute ++;
+ nfsi->cache_change_attribute = jiffies;
atomic_dec(&nfsi->data_updates);
}
/**
- * nfs_refresh_inode - verify consistency of the inode attribute cache
+ * nfs_check_inode_attributes - verify consistency of the inode attribute cache
* @inode - pointer to inode
* @fattr - updated attributes
*
@@ -1220,17 +1243,12 @@ void nfs_end_data_update(struct inode *inode)
* so that fattr carries weak cache consistency data, then it may
* also update the ctime/mtime/change_attribute.
*/
-int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
+static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fattr)
{
struct nfs_inode *nfsi = NFS_I(inode);
loff_t cur_size, new_isize;
int data_unstable;
- /* Do we hold a delegation? */
- if (nfs_have_delegation(inode, FMODE_READ))
- return 0;
-
- spin_lock(&inode->i_lock);
/* Are we in the process of updating data on the server? */
data_unstable = nfs_caches_unstable(inode);
@@ -1247,14 +1265,12 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
}
if ((fattr->valid & NFS_ATTR_FATTR) == 0) {
- spin_unlock(&inode->i_lock);
return 0;
}
/* Has the inode gone and changed behind our back? */
if (nfsi->fileid != fattr->fileid
|| (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT)) {
- spin_unlock(&inode->i_lock);
return -EIO;
}
@@ -1294,11 +1310,62 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
if (!timespec_equal(&inode->i_atime, &fattr->atime))
nfsi->cache_validity |= NFS_INO_INVALID_ATIME;
- nfsi->read_cache_jiffies = fattr->timestamp;
- spin_unlock(&inode->i_lock);
+ nfsi->read_cache_jiffies = fattr->time_start;
return 0;
}
+/**
+ * nfs_refresh_inode - try to update the inode attribute cache
+ * @inode - pointer to inode
+ * @fattr - updated attributes
+ *
+ * Check that an RPC call that returned attributes has not overlapped with
+ * other recent updates of the inode metadata, then decide whether it is
+ * safe to do a full update of the inode attributes, or whether just to
+ * call nfs_check_inode_attributes.
+ */
+int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
+{
+ struct nfs_inode *nfsi = NFS_I(inode);
+ int status;
+
+ if ((fattr->valid & NFS_ATTR_FATTR) == 0)
+ return 0;
+ spin_lock(&inode->i_lock);
+ nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE;
+ if (time_after(fattr->time_start, nfsi->last_updated))
+ status = nfs_update_inode(inode, fattr);
+ else
+ status = nfs_check_inode_attributes(inode, fattr);
+
+ spin_unlock(&inode->i_lock);
+ return status;
+}
+
+/**
+ * nfs_post_op_update_inode - try to update the inode attribute cache
+ * @inode - pointer to inode
+ * @fattr - updated attributes
+ *
+ * After an operation that has changed the inode metadata, mark the
+ * attribute cache as being invalid, then try to update it.
+ */
+int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr)
+{
+ struct nfs_inode *nfsi = NFS_I(inode);
+ int status = 0;
+
+ spin_lock(&inode->i_lock);
+ if (unlikely((fattr->valid & NFS_ATTR_FATTR) == 0)) {
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS;
+ goto out;
+ }
+ status = nfs_update_inode(inode, fattr);
+out:
+ spin_unlock(&inode->i_lock);
+ return status;
+}
+
/*
* Many nfs protocol calls return the new file attributes after
* an operation. Here we update the inode to reflect the state
@@ -1311,12 +1378,12 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
*
* A very similar scenario holds for the dir cache.
*/
-static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsigned long verifier)
+static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
{
struct nfs_inode *nfsi = NFS_I(inode);
loff_t cur_isize, new_isize;
unsigned int invalid = 0;
- int data_unstable;
+ int data_stable;
dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",
__FUNCTION__, inode->i_sb->s_id, inode->i_ino,
@@ -1334,23 +1401,22 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
goto out_err;
}
- spin_lock(&inode->i_lock);
-
/*
* Make sure the inode's type hasn't changed.
*/
- if ((inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT)) {
- spin_unlock(&inode->i_lock);
+ if ((inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT))
goto out_changed;
- }
/*
* Update the read time so we don't revalidate too often.
*/
- nfsi->read_cache_jiffies = fattr->timestamp;
+ nfsi->read_cache_jiffies = fattr->time_start;
+ nfsi->last_updated = jiffies;
/* Are we racing with known updates of the metadata on the server? */
- data_unstable = ! nfs_verify_change_attribute(inode, verifier);
+ data_stable = nfs_verify_change_attribute(inode, fattr->time_start);
+ if (data_stable)
+ nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
/* Check if our cached file size is stale */
new_isize = nfs_size_to_loff_t(fattr->size);
@@ -1359,7 +1425,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
/* Do we perhaps have any outstanding writes? */
if (nfsi->npages == 0) {
/* No, but did we race with nfs_end_data_update()? */
- if (verifier == nfsi->cache_change_attribute) {
+ if (data_stable) {
inode->i_size = new_isize;
invalid |= NFS_INO_INVALID_DATA;
}
@@ -1368,6 +1434,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
inode->i_size = new_isize;
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
}
+ nfsi->cache_change_attribute = jiffies;
dprintk("NFS: isize change on server for file %s/%ld\n",
inode->i_sb->s_id, inode->i_ino);
}
@@ -1377,8 +1444,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime));
dprintk("NFS: mtime change on server for file %s/%ld\n",
inode->i_sb->s_id, inode->i_ino);
- if (!data_unstable)
- invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
+ invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
+ nfsi->cache_change_attribute = jiffies;
}
if ((fattr->valid & NFS_ATTR_FATTR_V4)
@@ -1386,15 +1453,15 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
dprintk("NFS: change_attr change on server for file %s/%ld\n",
inode->i_sb->s_id, inode->i_ino);
nfsi->change_attr = fattr->change_attr;
- if (!data_unstable)
- invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+ invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+ nfsi->cache_change_attribute = jiffies;
}
/* If ctime has changed we should definitely clear access+acl caches */
if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) {
- if (!data_unstable)
- invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+ invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime));
+ nfsi->cache_change_attribute = jiffies;
}
memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
@@ -1432,10 +1499,11 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)
|| S_ISLNK(inode->i_mode)))
invalid &= ~NFS_INO_INVALID_DATA;
+ if (data_stable)
+ invalid &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME|NFS_INO_REVAL_PAGECACHE);
if (!nfs_have_delegation(inode, FMODE_READ))
nfsi->cache_validity |= invalid;
- spin_unlock(&inode->i_lock);
return 0;
out_changed:
/*
@@ -1445,14 +1513,13 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
printk(KERN_DEBUG "%s: inode %ld mode changed, %07o to %07o\n",
__FUNCTION__, inode->i_ino, inode->i_mode, fattr->mode);
#endif
+ out_err:
/*
* No need to worry about unhashing the dentry, as the
* lookup validation will know that the inode is bad.
* (But we fall through to invalidate the caches.)
*/
nfs_invalidate_inode(inode);
- out_err:
- set_bit(NFS_INO_STALE, &NFS_FLAGS(inode));
return -ESTALE;
}
@@ -1605,8 +1672,7 @@ static void nfs_kill_super(struct super_block *s)
rpciod_down(); /* release rpciod */
- if (server->hostname != NULL)
- kfree(server->hostname);
+ kfree(server->hostname);
kfree(server);
}
@@ -1644,8 +1710,7 @@ static void nfs4_clear_inode(struct inode *inode)
struct nfs_inode *nfsi = NFS_I(inode);
/* If we are holding a delegation, return it! */
- if (nfsi->delegation != NULL)
- nfs_inode_return_delegation(inode);
+ nfs_inode_return_delegation(inode);
/* First call standard NFS clear_inode() code */
nfs_clear_inode(inode);
/* Now clear out any remaining state */
@@ -1674,7 +1739,7 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
struct rpc_clnt *clnt = NULL;
struct rpc_timeout timeparms;
rpc_authflavor_t authflavour;
- int proto, err = -EIO;
+ int err = -EIO;
sb->s_blocksize_bits = 0;
sb->s_blocksize = 0;
@@ -1692,30 +1757,8 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
server->acdirmax = data->acdirmax*HZ;
server->rpc_ops = &nfs_v4_clientops;
- /* Initialize timeout values */
-
- timeparms.to_initval = data->timeo * HZ / 10;
- timeparms.to_retries = data->retrans;
- timeparms.to_exponential = 1;
- if (!timeparms.to_retries)
- timeparms.to_retries = 5;
- proto = data->proto;
- /* Which IP protocol do we use? */
- switch (proto) {
- case IPPROTO_TCP:
- timeparms.to_maxval = RPC_MAX_TCP_TIMEOUT;
- if (!timeparms.to_initval)
- timeparms.to_initval = 600 * HZ / 10;
- break;
- case IPPROTO_UDP:
- timeparms.to_maxval = RPC_MAX_UDP_TIMEOUT;
- if (!timeparms.to_initval)
- timeparms.to_initval = 11 * HZ / 10;
- break;
- default:
- return -EINVAL;
- }
+ nfs_init_timeout_values(&timeparms, data->proto, data->timeo, data->retrans);
clp = nfs4_get_client(&server->addr.sin_addr);
if (!clp) {
@@ -1740,7 +1783,7 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
down_write(&clp->cl_sem);
if (IS_ERR(clp->cl_rpcclient)) {
- xprt = xprt_create_proto(proto, &server->addr, &timeparms);
+ xprt = xprt_create_proto(data->proto, &server->addr, &timeparms);
if (IS_ERR(xprt)) {
up_write(&clp->cl_sem);
err = PTR_ERR(xprt);
@@ -1848,8 +1891,7 @@ nfs_copy_user_string(char *dst, struct nfs_string *src, int maxlen)
return ERR_PTR(-ENOMEM);
}
if (copy_from_user(dst, src->data, maxlen)) {
- if (p != NULL)
- kfree(p);
+ kfree(p);
return ERR_PTR(-EFAULT);
}
dst[maxlen] = '\0';
@@ -1940,10 +1982,8 @@ static struct super_block *nfs4_get_sb(struct file_system_type *fs_type,
out_err:
s = (struct super_block *)p;
out_free:
- if (server->mnt_path)
- kfree(server->mnt_path);
- if (server->hostname)
- kfree(server->hostname);
+ kfree(server->mnt_path);
+ kfree(server->hostname);
kfree(server);
return s;
}
@@ -1963,8 +2003,7 @@ static void nfs4_kill_super(struct super_block *sb)
destroy_nfsv4_state(server);
- if (server->hostname != NULL)
- kfree(server->hostname);
+ kfree(server->hostname);
kfree(server);
}
@@ -2013,6 +2052,7 @@ static struct inode *nfs_alloc_inode(struct super_block *sb)
return NULL;
nfsi->flags = 0UL;
nfsi->cache_validity = 0UL;
+ nfsi->cache_change_attribute = jiffies;
#ifdef CONFIG_NFS_V3_ACL
nfsi->acl_access = ERR_PTR(-EAGAIN);
nfsi->acl_default = ERR_PTR(-EAGAIN);
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index d91b69044a4d..59049e864ca7 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -143,7 +143,6 @@ xdr_decode_fattr(u32 *p, struct nfs_fattr *fattr)
fattr->mode = (fattr->mode & ~S_IFMT) | S_IFIFO;
fattr->rdev = 0;
}
- fattr->timestamp = jiffies;
return p;
}
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index edc95514046d..92c870d19ccd 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -78,7 +78,7 @@ nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
int status;
dprintk("%s: call fsinfo\n", __FUNCTION__);
- info->fattr->valid = 0;
+ nfs_fattr_init(info->fattr);
status = rpc_call(server->client_sys, NFS3PROC_FSINFO, fhandle, info, 0);
dprintk("%s: reply fsinfo: %d\n", __FUNCTION__, status);
if (!(info->fattr->valid & NFS_ATTR_FATTR)) {
@@ -98,7 +98,7 @@ nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
int status;
dprintk("NFS call getattr\n");
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call(server->client, NFS3PROC_GETATTR,
fhandle, fattr, 0);
dprintk("NFS reply getattr: %d\n", status);
@@ -117,7 +117,7 @@ nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
int status;
dprintk("NFS call setattr\n");
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call(NFS_CLIENT(inode), NFS3PROC_SETATTR, &arg, fattr, 0);
if (status == 0)
nfs_setattr_update_inode(inode, sattr);
@@ -143,8 +143,8 @@ nfs3_proc_lookup(struct inode *dir, struct qstr *name,
int status;
dprintk("NFS call lookup %s\n", name->name);
- dir_attr.valid = 0;
- fattr->valid = 0;
+ nfs_fattr_init(&dir_attr);
+ nfs_fattr_init(fattr);
status = rpc_call(NFS_CLIENT(dir), NFS3PROC_LOOKUP, &arg, &res, 0);
if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR))
status = rpc_call(NFS_CLIENT(dir), NFS3PROC_GETATTR,
@@ -174,7 +174,6 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
int status;
dprintk("NFS call access\n");
- fattr.valid = 0;
if (mode & MAY_READ)
arg.access |= NFS3_ACCESS_READ;
@@ -189,6 +188,7 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
if (mode & MAY_EXEC)
arg.access |= NFS3_ACCESS_EXECUTE;
}
+ nfs_fattr_init(&fattr);
status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
nfs_refresh_inode(inode, &fattr);
if (status == 0) {
@@ -217,7 +217,7 @@ static int nfs3_proc_readlink(struct inode *inode, struct page *page,
int status;
dprintk("NFS call readlink\n");
- fattr.valid = 0;
+ nfs_fattr_init(&fattr);
status = rpc_call(NFS_CLIENT(inode), NFS3PROC_READLINK,
&args, &fattr, 0);
nfs_refresh_inode(inode, &fattr);
@@ -240,7 +240,7 @@ static int nfs3_proc_read(struct nfs_read_data *rdata)
dprintk("NFS call read %d @ %Ld\n", rdata->args.count,
(long long) rdata->args.offset);
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
if (status >= 0)
nfs_refresh_inode(inode, fattr);
@@ -263,10 +263,10 @@ static int nfs3_proc_write(struct nfs_write_data *wdata)
dprintk("NFS call write %d @ %Ld\n", wdata->args.count,
(long long) wdata->args.offset);
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call_sync(NFS_CLIENT(inode), &msg, rpcflags);
if (status >= 0)
- nfs_refresh_inode(inode, fattr);
+ nfs_post_op_update_inode(inode, fattr);
dprintk("NFS reply write: %d\n", status);
return status < 0? status : wdata->res.count;
}
@@ -285,10 +285,10 @@ static int nfs3_proc_commit(struct nfs_write_data *cdata)
dprintk("NFS call commit %d @ %Ld\n", cdata->args.count,
(long long) cdata->args.offset);
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
if (status >= 0)
- nfs_refresh_inode(inode, fattr);
+ nfs_post_op_update_inode(inode, fattr);
dprintk("NFS reply commit: %d\n", status);
return status;
}
@@ -299,7 +299,7 @@ static int nfs3_proc_commit(struct nfs_write_data *cdata)
*/
static int
nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
- int flags)
+ int flags, struct nameidata *nd)
{
struct nfs_fh fhandle;
struct nfs_fattr fattr;
@@ -329,10 +329,10 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
sattr->ia_mode &= ~current->fs->umask;
again:
- dir_attr.valid = 0;
- fattr.valid = 0;
+ nfs_fattr_init(&dir_attr);
+ nfs_fattr_init(&fattr);
status = rpc_call(NFS_CLIENT(dir), NFS3PROC_CREATE, &arg, &res, 0);
- nfs_refresh_inode(dir, &dir_attr);
+ nfs_post_op_update_inode(dir, &dir_attr);
/* If the server doesn't support the exclusive creation semantics,
* try again with simple 'guarded' mode. */
@@ -401,9 +401,9 @@ nfs3_proc_remove(struct inode *dir, struct qstr *name)
int status;
dprintk("NFS call remove %s\n", name->name);
- dir_attr.valid = 0;
+ nfs_fattr_init(&dir_attr);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
- nfs_refresh_inode(dir, &dir_attr);
+ nfs_post_op_update_inode(dir, &dir_attr);
dprintk("NFS reply remove: %d\n", status);
return status;
}
@@ -422,7 +422,7 @@ nfs3_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr
ptr->arg.fh = NFS_FH(dir->d_inode);
ptr->arg.name = name->name;
ptr->arg.len = name->len;
- ptr->res.valid = 0;
+ nfs_fattr_init(&ptr->res);
msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
msg->rpc_argp = &ptr->arg;
msg->rpc_resp = &ptr->res;
@@ -439,7 +439,7 @@ nfs3_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
return 1;
if (msg->rpc_argp) {
dir_attr = (struct nfs_fattr*)msg->rpc_resp;
- nfs_refresh_inode(dir->d_inode, dir_attr);
+ nfs_post_op_update_inode(dir->d_inode, dir_attr);
kfree(msg->rpc_argp);
}
return 0;
@@ -465,11 +465,11 @@ nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name,
int status;
dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name);
- old_dir_attr.valid = 0;
- new_dir_attr.valid = 0;
+ nfs_fattr_init(&old_dir_attr);
+ nfs_fattr_init(&new_dir_attr);
status = rpc_call(NFS_CLIENT(old_dir), NFS3PROC_RENAME, &arg, &res, 0);
- nfs_refresh_inode(old_dir, &old_dir_attr);
- nfs_refresh_inode(new_dir, &new_dir_attr);
+ nfs_post_op_update_inode(old_dir, &old_dir_attr);
+ nfs_post_op_update_inode(new_dir, &new_dir_attr);
dprintk("NFS reply rename: %d\n", status);
return status;
}
@@ -491,11 +491,11 @@ nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
int status;
dprintk("NFS call link %s\n", name->name);
- dir_attr.valid = 0;
- fattr.valid = 0;
+ nfs_fattr_init(&dir_attr);
+ nfs_fattr_init(&fattr);
status = rpc_call(NFS_CLIENT(inode), NFS3PROC_LINK, &arg, &res, 0);
- nfs_refresh_inode(dir, &dir_attr);
- nfs_refresh_inode(inode, &fattr);
+ nfs_post_op_update_inode(dir, &dir_attr);
+ nfs_post_op_update_inode(inode, &fattr);
dprintk("NFS reply link: %d\n", status);
return status;
}
@@ -524,10 +524,10 @@ nfs3_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path,
if (path->len > NFS3_MAXPATHLEN)
return -ENAMETOOLONG;
dprintk("NFS call symlink %s -> %s\n", name->name, path->name);
- dir_attr.valid = 0;
- fattr->valid = 0;
+ nfs_fattr_init(&dir_attr);
+ nfs_fattr_init(fattr);
status = rpc_call(NFS_CLIENT(dir), NFS3PROC_SYMLINK, &arg, &res, 0);
- nfs_refresh_inode(dir, &dir_attr);
+ nfs_post_op_update_inode(dir, &dir_attr);
dprintk("NFS reply symlink: %d\n", status);
return status;
}
@@ -552,13 +552,13 @@ nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
int status;
dprintk("NFS call mkdir %s\n", dentry->d_name.name);
- dir_attr.valid = 0;
- fattr.valid = 0;
sattr->ia_mode &= ~current->fs->umask;
+ nfs_fattr_init(&dir_attr);
+ nfs_fattr_init(&fattr);
status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKDIR, &arg, &res, 0);
- nfs_refresh_inode(dir, &dir_attr);
+ nfs_post_op_update_inode(dir, &dir_attr);
if (status != 0)
goto out;
status = nfs_instantiate(dentry, &fhandle, &fattr);
@@ -582,9 +582,9 @@ nfs3_proc_rmdir(struct inode *dir, struct qstr *name)
int status;
dprintk("NFS call rmdir %s\n", name->name);
- dir_attr.valid = 0;
+ nfs_fattr_init(&dir_attr);
status = rpc_call(NFS_CLIENT(dir), NFS3PROC_RMDIR, &arg, &dir_attr, 0);
- nfs_refresh_inode(dir, &dir_attr);
+ nfs_post_op_update_inode(dir, &dir_attr);
dprintk("NFS reply rmdir: %d\n", status);
return status;
}
@@ -634,7 +634,7 @@ nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
dprintk("NFS call readdir%s %d\n",
plus? "plus" : "", (unsigned int) cookie);
- dir_attr.valid = 0;
+ nfs_fattr_init(&dir_attr);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_refresh_inode(dir, &dir_attr);
dprintk("NFS reply readdir: %d\n", status);
@@ -676,10 +676,10 @@ nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
sattr->ia_mode &= ~current->fs->umask;
- dir_attr.valid = 0;
- fattr.valid = 0;
+ nfs_fattr_init(&dir_attr);
+ nfs_fattr_init(&fattr);
status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKNOD, &arg, &res, 0);
- nfs_refresh_inode(dir, &dir_attr);
+ nfs_post_op_update_inode(dir, &dir_attr);
if (status != 0)
goto out;
status = nfs_instantiate(dentry, &fh, &fattr);
@@ -698,7 +698,7 @@ nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
int status;
dprintk("NFS call fsstat\n");
- stat->fattr->valid = 0;
+ nfs_fattr_init(stat->fattr);
status = rpc_call(server->client, NFS3PROC_FSSTAT, fhandle, stat, 0);
dprintk("NFS reply statfs: %d\n", status);
return status;
@@ -711,7 +711,7 @@ nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
int status;
dprintk("NFS call fsinfo\n");
- info->fattr->valid = 0;
+ nfs_fattr_init(info->fattr);
status = rpc_call(server->client_sys, NFS3PROC_FSINFO, fhandle, info, 0);
dprintk("NFS reply fsinfo: %d\n", status);
return status;
@@ -724,7 +724,7 @@ nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
int status;
dprintk("NFS call pathconf\n");
- info->fattr->valid = 0;
+ nfs_fattr_init(info->fattr);
status = rpc_call(server->client, NFS3PROC_PATHCONF, fhandle, info, 0);
dprintk("NFS reply pathconf: %d\n", status);
return status;
@@ -735,7 +735,7 @@ extern u32 *nfs3_decode_dirent(u32 *, struct nfs_entry *, int);
static void
nfs3_read_done(struct rpc_task *task)
{
- struct nfs_write_data *data = (struct nfs_write_data *) task->tk_calldata;
+ struct nfs_read_data *data = (struct nfs_read_data *) task->tk_calldata;
if (nfs3_async_handle_jukebox(task))
return;
@@ -775,7 +775,7 @@ nfs3_write_done(struct rpc_task *task)
return;
data = (struct nfs_write_data *)task->tk_calldata;
if (task->tk_status >= 0)
- nfs_refresh_inode(data->inode, data->res.fattr);
+ nfs_post_op_update_inode(data->inode, data->res.fattr);
nfs_writeback_done(task);
}
@@ -819,7 +819,7 @@ nfs3_commit_done(struct rpc_task *task)
return;
data = (struct nfs_write_data *)task->tk_calldata;
if (task->tk_status >= 0)
- nfs_refresh_inode(data->inode, data->res.fattr);
+ nfs_post_op_update_inode(data->inode, data->res.fattr);
nfs_commit_done(task);
}
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index db4a904810a4..0498bd36602c 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -174,7 +174,6 @@ xdr_decode_fattr(u32 *p, struct nfs_fattr *fattr)
/* Update the mode bits */
fattr->valid |= (NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3);
- fattr->timestamp = jiffies;
return p;
}
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index ec1a22d7b876..b7f262dcb6e3 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -93,25 +93,50 @@ struct nfs4_client {
};
/*
+ * struct rpc_sequence ensures that RPC calls are sent in the exact
+ * order that they appear on the list.
+ */
+struct rpc_sequence {
+ struct rpc_wait_queue wait; /* RPC call delay queue */
+ spinlock_t lock; /* Protects the list */
+ struct list_head list; /* Defines sequence of RPC calls */
+};
+
+#define NFS_SEQID_CONFIRMED 1
+struct nfs_seqid_counter {
+ struct rpc_sequence *sequence;
+ int flags;
+ u32 counter;
+};
+
+struct nfs_seqid {
+ struct nfs_seqid_counter *sequence;
+ struct list_head list;
+};
+
+static inline void nfs_confirm_seqid(struct nfs_seqid_counter *seqid, int status)
+{
+ if (seqid_mutating_err(-status))
+ seqid->flags |= NFS_SEQID_CONFIRMED;
+}
+
+/*
* NFS4 state_owners and lock_owners are simply labels for ordered
* sequences of RPC calls. Their sole purpose is to provide once-only
* semantics by allowing the server to identify replayed requests.
- *
- * The ->so_sema is held during all state_owner seqid-mutating operations:
- * OPEN, OPEN_DOWNGRADE, and CLOSE. Its purpose is to properly serialize
- * so_seqid.
*/
struct nfs4_state_owner {
+ spinlock_t so_lock;
struct list_head so_list; /* per-clientid list of state_owners */
struct nfs4_client *so_client;
u32 so_id; /* 32-bit identifier, unique */
- struct semaphore so_sema;
- u32 so_seqid; /* protected by so_sema */
atomic_t so_count;
struct rpc_cred *so_cred; /* Associated cred */
struct list_head so_states;
struct list_head so_delegations;
+ struct nfs_seqid_counter so_seqid;
+ struct rpc_sequence so_sequence;
};
/*
@@ -132,7 +157,7 @@ struct nfs4_lock_state {
fl_owner_t ls_owner; /* POSIX lock owner */
#define NFS_LOCK_INITIALIZED 1
int ls_flags;
- u32 ls_seqid;
+ struct nfs_seqid_counter ls_seqid;
u32 ls_id;
nfs4_stateid ls_stateid;
atomic_t ls_count;
@@ -153,7 +178,6 @@ struct nfs4_state {
struct inode *inode; /* Pointer to the inode */
unsigned long flags; /* Do we hold any locks? */
- struct semaphore lock_sema; /* Serializes file locking operations */
spinlock_t state_lock; /* Protects the lock_states list */
nfs4_stateid stateid;
@@ -190,9 +214,9 @@ extern int nfs4_proc_setclientid(struct nfs4_client *, u32, unsigned short);
extern int nfs4_proc_setclientid_confirm(struct nfs4_client *);
extern int nfs4_proc_async_renew(struct nfs4_client *);
extern int nfs4_proc_renew(struct nfs4_client *);
-extern int nfs4_do_close(struct inode *inode, struct nfs4_state *state, mode_t mode);
-extern struct inode *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
-extern int nfs4_open_revalidate(struct inode *, struct dentry *, int);
+extern int nfs4_do_close(struct inode *inode, struct nfs4_state *state);
+extern struct dentry *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
+extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nameidata *);
extern struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops;
extern struct nfs4_state_recovery_ops nfs4_network_partition_recovery_ops;
@@ -223,13 +247,18 @@ extern void nfs4_drop_state_owner(struct nfs4_state_owner *);
extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *);
extern void nfs4_put_open_state(struct nfs4_state *);
extern void nfs4_close_state(struct nfs4_state *, mode_t);
-extern struct nfs4_state *nfs4_find_state(struct inode *, struct rpc_cred *, mode_t mode);
-extern void nfs4_increment_seqid(int status, struct nfs4_state_owner *sp);
+extern void nfs4_state_set_mode_locked(struct nfs4_state *, mode_t);
extern void nfs4_schedule_state_recovery(struct nfs4_client *);
+extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
-extern void nfs4_increment_lock_seqid(int status, struct nfs4_lock_state *ls);
extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t);
+extern struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter);
+extern int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task);
+extern void nfs_increment_open_seqid(int status, struct nfs_seqid *seqid);
+extern void nfs_increment_lock_seqid(int status, struct nfs_seqid *seqid);
+extern void nfs_free_seqid(struct nfs_seqid *seqid);
+
extern const nfs4_stateid zero_stateid;
/* nfs4xdr.c */
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 9701ca8c9428..f988a9417b13 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -47,6 +47,7 @@
#include <linux/nfs_page.h>
#include <linux/smp_lock.h>
#include <linux/namei.h>
+#include <linux/mount.h>
#include "nfs4_fs.h"
#include "delegation.h"
@@ -56,10 +57,11 @@
#define NFS4_POLL_RETRY_MIN (1*HZ)
#define NFS4_POLL_RETRY_MAX (15*HZ)
+static int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nfs_fh *fh, struct nfs4_state_owner *sp, nfs4_stateid *stateid, struct nfs_seqid *seqid);
static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
-static int nfs4_async_handle_error(struct rpc_task *, struct nfs_server *);
+static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *);
static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry);
-static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_exception *exception);
+static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception);
extern u32 *nfs4_decode_dirent(u32 *p, struct nfs_entry *entry, int plus);
extern struct rpc_procinfo nfs4_procedures[];
@@ -185,8 +187,26 @@ static void update_changeattr(struct inode *inode, struct nfs4_change_info *cinf
{
struct nfs_inode *nfsi = NFS_I(inode);
+ spin_lock(&inode->i_lock);
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
if (cinfo->before == nfsi->change_attr && cinfo->atomic)
nfsi->change_attr = cinfo->after;
+ spin_unlock(&inode->i_lock);
+}
+
+/* Helper for asynchronous RPC calls */
+static int nfs4_call_async(struct rpc_clnt *clnt, rpc_action tk_begin,
+ rpc_action tk_exit, void *calldata)
+{
+ struct rpc_task *task;
+
+ if (!(task = rpc_new_task(clnt, tk_exit, RPC_TASK_ASYNC)))
+ return -ENOMEM;
+
+ task->tk_calldata = calldata;
+ task->tk_action = tk_begin;
+ rpc_execute(task);
+ return 0;
}
static void update_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid, int open_flags)
@@ -194,22 +214,22 @@ static void update_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid,
struct inode *inode = state->inode;
open_flags &= (FMODE_READ|FMODE_WRITE);
- /* Protect against nfs4_find_state() */
+ /* Protect against nfs4_find_state_byowner() */
+ spin_lock(&state->owner->so_lock);
spin_lock(&inode->i_lock);
- state->state |= open_flags;
- /* NB! List reordering - see the reclaim code for why. */
- if ((open_flags & FMODE_WRITE) && 0 == state->nwriters++)
- list_move(&state->open_states, &state->owner->so_states);
+ memcpy(&state->stateid, stateid, sizeof(state->stateid));
+ if ((open_flags & FMODE_WRITE))
+ state->nwriters++;
if (open_flags & FMODE_READ)
state->nreaders++;
- memcpy(&state->stateid, stateid, sizeof(state->stateid));
+ nfs4_state_set_mode_locked(state, state->state | open_flags);
spin_unlock(&inode->i_lock);
+ spin_unlock(&state->owner->so_lock);
}
/*
* OPEN_RECLAIM:
* reclaim state on the server after a reboot.
- * Assumes caller is holding the sp->so_sem
*/
static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *state)
{
@@ -218,7 +238,6 @@ static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *st
struct nfs_delegation *delegation = NFS_I(inode)->delegation;
struct nfs_openargs o_arg = {
.fh = NFS_FH(inode),
- .seqid = sp->so_seqid,
.id = sp->so_id,
.open_flags = state->state,
.clientid = server->nfs4_state->cl_clientid,
@@ -245,8 +264,13 @@ static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *st
}
o_arg.u.delegation_type = delegation->type;
}
+ o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
+ if (o_arg.seqid == NULL)
+ return -ENOMEM;
status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
- nfs4_increment_seqid(status, sp);
+ /* Confirm the sequence as being established */
+ nfs_confirm_seqid(&sp->so_seqid, status);
+ nfs_increment_open_seqid(status, o_arg.seqid);
if (status == 0) {
memcpy(&state->stateid, &o_res.stateid, sizeof(state->stateid));
if (o_res.delegation_type != 0) {
@@ -256,6 +280,7 @@ static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *st
nfs_async_inode_return_delegation(inode, &o_res.stateid);
}
}
+ nfs_free_seqid(o_arg.seqid);
clear_bit(NFS_DELEGATED_STATE, &state->flags);
/* Ensure we update the inode attributes */
NFS_CACHEINV(inode);
@@ -302,23 +327,35 @@ static int _nfs4_open_delegation_recall(struct dentry *dentry, struct nfs4_state
};
int status = 0;
- down(&sp->so_sema);
if (!test_bit(NFS_DELEGATED_STATE, &state->flags))
goto out;
if (state->state == 0)
goto out;
- arg.seqid = sp->so_seqid;
+ arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
+ status = -ENOMEM;
+ if (arg.seqid == NULL)
+ goto out;
arg.open_flags = state->state;
memcpy(arg.u.delegation.data, state->stateid.data, sizeof(arg.u.delegation.data));
status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
- nfs4_increment_seqid(status, sp);
+ nfs_increment_open_seqid(status, arg.seqid);
+ if (status != 0)
+ goto out_free;
+ if(res.rflags & NFS4_OPEN_RESULT_CONFIRM) {
+ status = _nfs4_proc_open_confirm(server->client, NFS_FH(inode),
+ sp, &res.stateid, arg.seqid);
+ if (status != 0)
+ goto out_free;
+ }
+ nfs_confirm_seqid(&sp->so_seqid, 0);
if (status >= 0) {
memcpy(state->stateid.data, res.stateid.data,
sizeof(state->stateid.data));
clear_bit(NFS_DELEGATED_STATE, &state->flags);
}
+out_free:
+ nfs_free_seqid(arg.seqid);
out:
- up(&sp->so_sema);
dput(parent);
return status;
}
@@ -345,11 +382,11 @@ int nfs4_open_delegation_recall(struct dentry *dentry, struct nfs4_state *state)
return err;
}
-static inline int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nfs_fh *fh, struct nfs4_state_owner *sp, nfs4_stateid *stateid)
+static int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nfs_fh *fh, struct nfs4_state_owner *sp, nfs4_stateid *stateid, struct nfs_seqid *seqid)
{
struct nfs_open_confirmargs arg = {
.fh = fh,
- .seqid = sp->so_seqid,
+ .seqid = seqid,
.stateid = *stateid,
};
struct nfs_open_confirmres res;
@@ -362,7 +399,9 @@ static inline int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nf
int status;
status = rpc_call_sync(clnt, &msg, RPC_TASK_NOINTR);
- nfs4_increment_seqid(status, sp);
+ /* Confirm the sequence as being established */
+ nfs_confirm_seqid(&sp->so_seqid, status);
+ nfs_increment_open_seqid(status, seqid);
if (status >= 0)
memcpy(stateid, &res.stateid, sizeof(*stateid));
return status;
@@ -380,21 +419,41 @@ static int _nfs4_proc_open(struct inode *dir, struct nfs4_state_owner *sp, stru
int status;
/* Update sequence id. The caller must serialize! */
- o_arg->seqid = sp->so_seqid;
o_arg->id = sp->so_id;
o_arg->clientid = sp->so_client->cl_clientid;
status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
- nfs4_increment_seqid(status, sp);
+ if (status == 0) {
+ /* OPEN on anything except a regular file is disallowed in NFSv4 */
+ switch (o_res->f_attr->mode & S_IFMT) {
+ case S_IFREG:
+ break;
+ case S_IFLNK:
+ status = -ELOOP;
+ break;
+ case S_IFDIR:
+ status = -EISDIR;
+ break;
+ default:
+ status = -ENOTDIR;
+ }
+ }
+
+ nfs_increment_open_seqid(status, o_arg->seqid);
if (status != 0)
goto out;
- update_changeattr(dir, &o_res->cinfo);
+ if (o_arg->open_flags & O_CREAT) {
+ update_changeattr(dir, &o_res->cinfo);
+ nfs_post_op_update_inode(dir, o_res->dir_attr);
+ } else
+ nfs_refresh_inode(dir, o_res->dir_attr);
if(o_res->rflags & NFS4_OPEN_RESULT_CONFIRM) {
status = _nfs4_proc_open_confirm(server->client, &o_res->fh,
- sp, &o_res->stateid);
+ sp, &o_res->stateid, o_arg->seqid);
if (status != 0)
goto out;
}
+ nfs_confirm_seqid(&sp->so_seqid, 0);
if (!(o_res->f_attr->valid & NFS_ATTR_FATTR))
status = server->rpc_ops->getattr(server, &o_res->fh, o_res->f_attr);
out:
@@ -441,9 +500,7 @@ static int _nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
struct inode *inode = state->inode;
struct nfs_server *server = NFS_SERVER(dir);
struct nfs_delegation *delegation = NFS_I(inode)->delegation;
- struct nfs_fattr f_attr = {
- .valid = 0,
- };
+ struct nfs_fattr f_attr, dir_attr;
struct nfs_openargs o_arg = {
.fh = NFS_FH(dir),
.open_flags = state->state,
@@ -453,6 +510,7 @@ static int _nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
};
struct nfs_openres o_res = {
.f_attr = &f_attr,
+ .dir_attr = &dir_attr,
.server = server,
};
int status = 0;
@@ -465,6 +523,12 @@ static int _nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
set_bit(NFS_DELEGATED_STATE, &state->flags);
goto out;
}
+ o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
+ status = -ENOMEM;
+ if (o_arg.seqid == NULL)
+ goto out;
+ nfs_fattr_init(&f_attr);
+ nfs_fattr_init(&dir_attr);
status = _nfs4_proc_open(dir, sp, &o_arg, &o_res);
if (status != 0)
goto out_nodeleg;
@@ -490,6 +554,7 @@ static int _nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
nfs_inode_reclaim_delegation(inode, sp->so_cred, &o_res);
}
out_nodeleg:
+ nfs_free_seqid(o_arg.seqid);
clear_bit(NFS_DELEGATED_STATE, &state->flags);
out:
dput(parent);
@@ -564,7 +629,6 @@ static int _nfs4_open_delegated(struct inode *inode, int flags, struct rpc_cred
dprintk("%s: nfs4_get_state_owner failed!\n", __FUNCTION__);
goto out_err;
}
- down(&sp->so_sema);
state = nfs4_get_open_state(inode, sp);
if (state == NULL)
goto out_err;
@@ -589,7 +653,6 @@ static int _nfs4_open_delegated(struct inode *inode, int flags, struct rpc_cred
set_bit(NFS_DELEGATED_STATE, &state->flags);
update_open_stateid(state, &delegation->stateid, open_flags);
out_ok:
- up(&sp->so_sema);
nfs4_put_state_owner(sp);
up_read(&nfsi->rwsem);
up_read(&clp->cl_sem);
@@ -600,11 +663,12 @@ out_err:
if (sp != NULL) {
if (state != NULL)
nfs4_put_open_state(state);
- up(&sp->so_sema);
nfs4_put_state_owner(sp);
}
up_read(&nfsi->rwsem);
up_read(&clp->cl_sem);
+ if (err != -EACCES)
+ nfs_inode_return_delegation(inode);
return err;
}
@@ -635,9 +699,7 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, int flags, st
struct nfs4_client *clp = server->nfs4_state;
struct inode *inode = NULL;
int status;
- struct nfs_fattr f_attr = {
- .valid = 0,
- };
+ struct nfs_fattr f_attr, dir_attr;
struct nfs_openargs o_arg = {
.fh = NFS_FH(dir),
.open_flags = flags,
@@ -648,6 +710,7 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, int flags, st
};
struct nfs_openres o_res = {
.f_attr = &f_attr,
+ .dir_attr = &dir_attr,
.server = server,
};
@@ -665,8 +728,12 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, int flags, st
} else
o_arg.u.attrs = sattr;
/* Serialization for the sequence id */
- down(&sp->so_sema);
+ o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
+ if (o_arg.seqid == NULL)
+ return -ENOMEM;
+ nfs_fattr_init(&f_attr);
+ nfs_fattr_init(&dir_attr);
status = _nfs4_proc_open(dir, sp, &o_arg, &o_res);
if (status != 0)
goto out_err;
@@ -681,7 +748,7 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, int flags, st
update_open_stateid(state, &o_res.stateid, flags);
if (o_res.delegation_type != 0)
nfs_inode_set_delegation(inode, cred, &o_res);
- up(&sp->so_sema);
+ nfs_free_seqid(o_arg.seqid);
nfs4_put_state_owner(sp);
up_read(&clp->cl_sem);
*res = state;
@@ -690,7 +757,7 @@ out_err:
if (sp != NULL) {
if (state != NULL)
nfs4_put_open_state(state);
- up(&sp->so_sema);
+ nfs_free_seqid(o_arg.seqid);
nfs4_put_state_owner(sp);
}
/* Note: clp->cl_sem must be released before nfs4_put_open_state()! */
@@ -718,7 +785,7 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, struct dentry *dentry,
* It is actually a sign of a bug on the client or on the server.
*
* If we receive a BAD_SEQID error in the particular case of
- * doing an OPEN, we assume that nfs4_increment_seqid() will
+ * doing an OPEN, we assume that nfs_increment_open_seqid() will
* have unhashed the old state_owner for us, and that we can
* therefore safely retry using a new one. We should still warn
* the user though...
@@ -728,6 +795,16 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, struct dentry *dentry,
exception.retry = 1;
continue;
}
+ /*
+ * BAD_STATEID on OPEN means that the server cancelled our
+ * state before it received the OPEN_CONFIRM.
+ * Recover by retrying the request as per the discussion
+ * on Page 181 of RFC3530.
+ */
+ if (status == -NFS4ERR_BAD_STATEID) {
+ exception.retry = 1;
+ continue;
+ }
res = ERR_PTR(nfs4_handle_exception(NFS_SERVER(dir),
status, &exception));
} while (exception.retry);
@@ -755,7 +832,7 @@ static int _nfs4_do_setattr(struct nfs_server *server, struct nfs_fattr *fattr,
};
int status;
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
if (state != NULL) {
msg.rpc_cred = state->owner->so_cred;
@@ -787,19 +864,30 @@ struct nfs4_closedata {
struct nfs4_state *state;
struct nfs_closeargs arg;
struct nfs_closeres res;
+ struct nfs_fattr fattr;
};
+static void nfs4_free_closedata(struct nfs4_closedata *calldata)
+{
+ struct nfs4_state *state = calldata->state;
+ struct nfs4_state_owner *sp = state->owner;
+
+ nfs4_put_open_state(calldata->state);
+ nfs_free_seqid(calldata->arg.seqid);
+ nfs4_put_state_owner(sp);
+ kfree(calldata);
+}
+
static void nfs4_close_done(struct rpc_task *task)
{
struct nfs4_closedata *calldata = (struct nfs4_closedata *)task->tk_calldata;
struct nfs4_state *state = calldata->state;
- struct nfs4_state_owner *sp = state->owner;
struct nfs_server *server = NFS_SERVER(calldata->inode);
/* hmm. we are done with the inode, and in the process of freeing
* the state_owner. we keep this around to process errors
*/
- nfs4_increment_seqid(task->tk_status, sp);
+ nfs_increment_open_seqid(task->tk_status, calldata->arg.seqid);
switch (task->tk_status) {
case 0:
memcpy(&state->stateid, &calldata->res.stateid,
@@ -807,7 +895,6 @@ static void nfs4_close_done(struct rpc_task *task)
break;
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_EXPIRED:
- state->state = calldata->arg.open_flags;
nfs4_schedule_state_recovery(server->nfs4_state);
break;
default:
@@ -816,25 +903,50 @@ static void nfs4_close_done(struct rpc_task *task)
return;
}
}
- state->state = calldata->arg.open_flags;
- nfs4_put_open_state(state);
- up(&sp->so_sema);
- nfs4_put_state_owner(sp);
- up_read(&server->nfs4_state->cl_sem);
- kfree(calldata);
+ nfs_refresh_inode(calldata->inode, calldata->res.fattr);
+ nfs4_free_closedata(calldata);
}
-static inline int nfs4_close_call(struct rpc_clnt *clnt, struct nfs4_closedata *calldata)
+static void nfs4_close_begin(struct rpc_task *task)
{
+ struct nfs4_closedata *calldata = (struct nfs4_closedata *)task->tk_calldata;
+ struct nfs4_state *state = calldata->state;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE],
.rpc_argp = &calldata->arg,
.rpc_resp = &calldata->res,
- .rpc_cred = calldata->state->owner->so_cred,
+ .rpc_cred = state->owner->so_cred,
};
- if (calldata->arg.open_flags != 0)
+ int mode = 0, old_mode;
+ int status;
+
+ status = nfs_wait_on_sequence(calldata->arg.seqid, task);
+ if (status != 0)
+ return;
+ /* Recalculate the new open mode in case someone reopened the file
+ * while we were waiting in line to be scheduled.
+ */
+ spin_lock(&state->owner->so_lock);
+ spin_lock(&calldata->inode->i_lock);
+ mode = old_mode = state->state;
+ if (state->nreaders == 0)
+ mode &= ~FMODE_READ;
+ if (state->nwriters == 0)
+ mode &= ~FMODE_WRITE;
+ nfs4_state_set_mode_locked(state, mode);
+ spin_unlock(&calldata->inode->i_lock);
+ spin_unlock(&state->owner->so_lock);
+ if (mode == old_mode || test_bit(NFS_DELEGATED_STATE, &state->flags)) {
+ nfs4_free_closedata(calldata);
+ task->tk_exit = NULL;
+ rpc_exit(task, 0);
+ return;
+ }
+ nfs_fattr_init(calldata->res.fattr);
+ if (mode != 0)
msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
- return rpc_call_async(clnt, &msg, 0, nfs4_close_done, calldata);
+ calldata->arg.open_flags = mode;
+ rpc_call_setup(task, &msg, 0);
}
/*
@@ -848,42 +960,59 @@ static inline int nfs4_close_call(struct rpc_clnt *clnt, struct nfs4_closedata *
*
* NOTE: Caller must be holding the sp->so_owner semaphore!
*/
-int nfs4_do_close(struct inode *inode, struct nfs4_state *state, mode_t mode)
+int nfs4_do_close(struct inode *inode, struct nfs4_state *state)
{
+ struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_closedata *calldata;
- int status;
+ int status = -ENOMEM;
- /* Tell caller we're done */
- if (test_bit(NFS_DELEGATED_STATE, &state->flags)) {
- state->state = mode;
- return 0;
- }
- calldata = (struct nfs4_closedata *)kmalloc(sizeof(*calldata), GFP_KERNEL);
+ calldata = kmalloc(sizeof(*calldata), GFP_KERNEL);
if (calldata == NULL)
- return -ENOMEM;
+ goto out;
calldata->inode = inode;
calldata->state = state;
calldata->arg.fh = NFS_FH(inode);
+ calldata->arg.stateid = &state->stateid;
/* Serialization for the sequence id */
- calldata->arg.seqid = state->owner->so_seqid;
- calldata->arg.open_flags = mode;
- memcpy(&calldata->arg.stateid, &state->stateid,
- sizeof(calldata->arg.stateid));
- status = nfs4_close_call(NFS_SERVER(inode)->client, calldata);
- /*
- * Return -EINPROGRESS on success in order to indicate to the
- * caller that an asynchronous RPC call has been launched, and
- * that it will release the semaphores on completion.
- */
- return (status == 0) ? -EINPROGRESS : status;
+ calldata->arg.seqid = nfs_alloc_seqid(&state->owner->so_seqid);
+ if (calldata->arg.seqid == NULL)
+ goto out_free_calldata;
+ calldata->arg.bitmask = server->attr_bitmask;
+ calldata->res.fattr = &calldata->fattr;
+ calldata->res.server = server;
+
+ status = nfs4_call_async(server->client, nfs4_close_begin,
+ nfs4_close_done, calldata);
+ if (status == 0)
+ goto out;
+
+ nfs_free_seqid(calldata->arg.seqid);
+out_free_calldata:
+ kfree(calldata);
+out:
+ return status;
+}
+
+static void nfs4_intent_set_file(struct nameidata *nd, struct dentry *dentry, struct nfs4_state *state)
+{
+ struct file *filp;
+
+ filp = lookup_instantiate_filp(nd, dentry, NULL);
+ if (!IS_ERR(filp)) {
+ struct nfs_open_context *ctx;
+ ctx = (struct nfs_open_context *)filp->private_data;
+ ctx->state = state;
+ } else
+ nfs4_close_state(state, nd->intent.open.flags);
}
-struct inode *
+struct dentry *
nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct iattr attr;
struct rpc_cred *cred;
struct nfs4_state *state;
+ struct dentry *res;
if (nd->flags & LOOKUP_CREATE) {
attr.ia_mode = nd->intent.open.create_mode;
@@ -897,16 +1026,23 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
cred = rpcauth_lookupcred(NFS_SERVER(dir)->client->cl_auth, 0);
if (IS_ERR(cred))
- return (struct inode *)cred;
+ return (struct dentry *)cred;
state = nfs4_do_open(dir, dentry, nd->intent.open.flags, &attr, cred);
put_rpccred(cred);
- if (IS_ERR(state))
- return (struct inode *)state;
- return state->inode;
+ if (IS_ERR(state)) {
+ if (PTR_ERR(state) == -ENOENT)
+ d_add(dentry, NULL);
+ return (struct dentry *)state;
+ }
+ res = d_add_unique(dentry, state->inode);
+ if (res != NULL)
+ dentry = res;
+ nfs4_intent_set_file(nd, dentry, state);
+ return res;
}
int
-nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags)
+nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, struct nameidata *nd)
{
struct rpc_cred *cred;
struct nfs4_state *state;
@@ -919,18 +1055,30 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags)
if (IS_ERR(state))
state = nfs4_do_open(dir, dentry, openflags, NULL, cred);
put_rpccred(cred);
- if (state == ERR_PTR(-ENOENT) && dentry->d_inode == 0)
- return 1;
- if (IS_ERR(state))
- return 0;
+ if (IS_ERR(state)) {
+ switch (PTR_ERR(state)) {
+ case -EPERM:
+ case -EACCES:
+ case -EDQUOT:
+ case -ENOSPC:
+ case -EROFS:
+ lookup_instantiate_filp(nd, (struct dentry *)state, NULL);
+ return 1;
+ case -ENOENT:
+ if (dentry->d_inode == NULL)
+ return 1;
+ }
+ goto out_drop;
+ }
inode = state->inode;
+ iput(inode);
if (inode == dentry->d_inode) {
- iput(inode);
+ nfs4_intent_set_file(nd, dentry, state);
return 1;
}
- d_drop(dentry);
nfs4_close_state(state, openflags);
- iput(inode);
+out_drop:
+ d_drop(dentry);
return 0;
}
@@ -974,13 +1122,12 @@ static int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fh
static int _nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info)
{
- struct nfs_fattr * fattr = info->fattr;
struct nfs4_lookup_root_arg args = {
.bitmask = nfs4_fattr_bitmap,
};
struct nfs4_lookup_res res = {
.server = server,
- .fattr = fattr,
+ .fattr = info->fattr,
.fh = fhandle,
};
struct rpc_message msg = {
@@ -988,7 +1135,7 @@ static int _nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
.rpc_argp = &args,
.rpc_resp = &res,
};
- fattr->valid = 0;
+ nfs_fattr_init(info->fattr);
return rpc_call_sync(server->client, &msg, 0);
}
@@ -1051,7 +1198,7 @@ static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
q.len = p - q.name;
do {
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = nfs4_handle_exception(server,
rpc_call_sync(server->client, &msg, 0),
&exception);
@@ -1088,7 +1235,7 @@ static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
.rpc_resp = &res,
};
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
return rpc_call_sync(server->client, &msg, 0);
}
@@ -1127,30 +1274,27 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
{
struct rpc_cred *cred;
struct inode *inode = dentry->d_inode;
- struct nfs4_state *state;
+ struct nfs_open_context *ctx;
+ struct nfs4_state *state = NULL;
int status;
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
cred = rpcauth_lookupcred(NFS_SERVER(inode)->client->cl_auth, 0);
if (IS_ERR(cred))
return PTR_ERR(cred);
- /* Search for an existing WRITE delegation first */
- state = nfs4_open_delegated(inode, FMODE_WRITE, cred);
- if (!IS_ERR(state)) {
- /* NB: nfs4_open_delegated() bumps the inode->i_count */
- iput(inode);
- } else {
- /* Search for an existing open(O_WRITE) stateid */
- state = nfs4_find_state(inode, cred, FMODE_WRITE);
- }
+
+ /* Search for an existing open(O_WRITE) file */
+ ctx = nfs_find_open_context(inode, cred, FMODE_WRITE);
+ if (ctx != NULL)
+ state = ctx->state;
status = nfs4_do_setattr(NFS_SERVER(inode), fattr,
NFS_FH(inode), sattr, state);
if (status == 0)
nfs_setattr_update_inode(inode, sattr);
- if (state != NULL)
- nfs4_close_state(state, FMODE_WRITE);
+ if (ctx != NULL)
+ put_nfs_open_context(ctx);
put_rpccred(cred);
return status;
}
@@ -1176,7 +1320,7 @@ static int _nfs4_proc_lookup(struct inode *dir, struct qstr *name,
.rpc_resp = &res,
};
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
dprintk("NFS call lookup %s\n", name->name);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
@@ -1325,7 +1469,7 @@ static int _nfs4_proc_read(struct nfs_read_data *rdata)
dprintk("NFS call read %d @ %Ld\n", rdata->args.count,
(long long) rdata->args.offset);
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call_sync(server->client, &msg, flags);
if (!status)
renew_lease(server, timestamp);
@@ -1362,10 +1506,15 @@ static int _nfs4_proc_write(struct nfs_write_data *wdata)
dprintk("NFS call write %d @ %Ld\n", wdata->args.count,
(long long) wdata->args.offset);
- fattr->valid = 0;
+ wdata->args.bitmask = server->attr_bitmask;
+ wdata->res.server = server;
+ nfs_fattr_init(fattr);
status = rpc_call_sync(server->client, &msg, rpcflags);
dprintk("NFS reply write: %d\n", status);
- return status;
+ if (status < 0)
+ return status;
+ nfs_post_op_update_inode(inode, fattr);
+ return wdata->res.count;
}
static int nfs4_proc_write(struct nfs_write_data *wdata)
@@ -1396,9 +1545,13 @@ static int _nfs4_proc_commit(struct nfs_write_data *cdata)
dprintk("NFS call commit %d @ %Ld\n", cdata->args.count,
(long long) cdata->args.offset);
- fattr->valid = 0;
+ cdata->args.bitmask = server->attr_bitmask;
+ cdata->res.server = server;
+ nfs_fattr_init(fattr);
status = rpc_call_sync(server->client, &msg, 0);
dprintk("NFS reply commit: %d\n", status);
+ if (status >= 0)
+ nfs_post_op_update_inode(inode, fattr);
return status;
}
@@ -1431,7 +1584,7 @@ static int nfs4_proc_commit(struct nfs_write_data *cdata)
static int
nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
- int flags)
+ int flags, struct nameidata *nd)
{
struct nfs4_state *state;
struct rpc_cred *cred;
@@ -1453,24 +1606,30 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
struct nfs_fattr fattr;
status = nfs4_do_setattr(NFS_SERVER(dir), &fattr,
NFS_FH(state->inode), sattr, state);
- if (status == 0) {
+ if (status == 0)
nfs_setattr_update_inode(state->inode, sattr);
- goto out;
- }
- } else if (flags != 0)
- goto out;
- nfs4_close_state(state, flags);
+ }
+ if (status == 0 && nd != NULL && (nd->flags & LOOKUP_OPEN))
+ nfs4_intent_set_file(nd, dentry, state);
+ else
+ nfs4_close_state(state, flags);
out:
return status;
}
static int _nfs4_proc_remove(struct inode *dir, struct qstr *name)
{
+ struct nfs_server *server = NFS_SERVER(dir);
struct nfs4_remove_arg args = {
.fh = NFS_FH(dir),
.name = name,
+ .bitmask = server->attr_bitmask,
+ };
+ struct nfs_fattr dir_attr;
+ struct nfs4_remove_res res = {
+ .server = server,
+ .dir_attr = &dir_attr,
};
- struct nfs4_change_info res;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE],
.rpc_argp = &args,
@@ -1478,9 +1637,12 @@ static int _nfs4_proc_remove(struct inode *dir, struct qstr *name)
};
int status;
- status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
- if (status == 0)
- update_changeattr(dir, &res);
+ nfs_fattr_init(res.dir_attr);
+ status = rpc_call_sync(server->client, &msg, 0);
+ if (status == 0) {
+ update_changeattr(dir, &res.cinfo);
+ nfs_post_op_update_inode(dir, res.dir_attr);
+ }
return status;
}
@@ -1498,12 +1660,14 @@ static int nfs4_proc_remove(struct inode *dir, struct qstr *name)
struct unlink_desc {
struct nfs4_remove_arg args;
- struct nfs4_change_info res;
+ struct nfs4_remove_res res;
+ struct nfs_fattr dir_attr;
};
static int nfs4_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir,
struct qstr *name)
{
+ struct nfs_server *server = NFS_SERVER(dir->d_inode);
struct unlink_desc *up;
up = (struct unlink_desc *) kmalloc(sizeof(*up), GFP_KERNEL);
@@ -1512,6 +1676,9 @@ static int nfs4_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir,
up->args.fh = NFS_FH(dir->d_inode);
up->args.name = name;
+ up->args.bitmask = server->attr_bitmask;
+ up->res.server = server;
+ up->res.dir_attr = &up->dir_attr;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE];
msg->rpc_argp = &up->args;
@@ -1526,7 +1693,8 @@ static int nfs4_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
if (msg->rpc_resp != NULL) {
up = container_of(msg->rpc_resp, struct unlink_desc, res);
- update_changeattr(dir->d_inode, &up->res);
+ update_changeattr(dir->d_inode, &up->res.cinfo);
+ nfs_post_op_update_inode(dir->d_inode, up->res.dir_attr);
kfree(up);
msg->rpc_resp = NULL;
msg->rpc_argp = NULL;
@@ -1537,13 +1705,20 @@ static int nfs4_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
struct inode *new_dir, struct qstr *new_name)
{
+ struct nfs_server *server = NFS_SERVER(old_dir);
struct nfs4_rename_arg arg = {
.old_dir = NFS_FH(old_dir),
.new_dir = NFS_FH(new_dir),
.old_name = old_name,
.new_name = new_name,
+ .bitmask = server->attr_bitmask,
+ };
+ struct nfs_fattr old_fattr, new_fattr;
+ struct nfs4_rename_res res = {
+ .server = server,
+ .old_fattr = &old_fattr,
+ .new_fattr = &new_fattr,
};
- struct nfs4_rename_res res = { };
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RENAME],
.rpc_argp = &arg,
@@ -1551,11 +1726,15 @@ static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
};
int status;
- status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0);
+ nfs_fattr_init(res.old_fattr);
+ nfs_fattr_init(res.new_fattr);
+ status = rpc_call_sync(server->client, &msg, 0);
if (!status) {
update_changeattr(old_dir, &res.old_cinfo);
+ nfs_post_op_update_inode(old_dir, res.old_fattr);
update_changeattr(new_dir, &res.new_cinfo);
+ nfs_post_op_update_inode(new_dir, res.new_fattr);
}
return status;
}
@@ -1576,22 +1755,34 @@ static int nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
static int _nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
{
+ struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_link_arg arg = {
.fh = NFS_FH(inode),
.dir_fh = NFS_FH(dir),
.name = name,
+ .bitmask = server->attr_bitmask,
+ };
+ struct nfs_fattr fattr, dir_attr;
+ struct nfs4_link_res res = {
+ .server = server,
+ .fattr = &fattr,
+ .dir_attr = &dir_attr,
};
- struct nfs4_change_info cinfo = { };
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LINK],
.rpc_argp = &arg,
- .rpc_resp = &cinfo,
+ .rpc_resp = &res,
};
int status;
- status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
- if (!status)
- update_changeattr(dir, &cinfo);
+ nfs_fattr_init(res.fattr);
+ nfs_fattr_init(res.dir_attr);
+ status = rpc_call_sync(server->client, &msg, 0);
+ if (!status) {
+ update_changeattr(dir, &res.cinfo);
+ nfs_post_op_update_inode(dir, res.dir_attr);
+ nfs_refresh_inode(inode, res.fattr);
+ }
return status;
}
@@ -1613,6 +1804,7 @@ static int _nfs4_proc_symlink(struct inode *dir, struct qstr *name,
struct nfs_fattr *fattr)
{
struct nfs_server *server = NFS_SERVER(dir);
+ struct nfs_fattr dir_fattr;
struct nfs4_create_arg arg = {
.dir_fh = NFS_FH(dir),
.server = server,
@@ -1625,6 +1817,7 @@ static int _nfs4_proc_symlink(struct inode *dir, struct qstr *name,
.server = server,
.fh = fhandle,
.fattr = fattr,
+ .dir_fattr = &dir_fattr,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SYMLINK],
@@ -1636,11 +1829,13 @@ static int _nfs4_proc_symlink(struct inode *dir, struct qstr *name,
if (path->len > NFS4_MAXPATHLEN)
return -ENAMETOOLONG;
arg.u.symlink = path;
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
+ nfs_fattr_init(&dir_fattr);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
if (!status)
update_changeattr(dir, &res.dir_cinfo);
+ nfs_post_op_update_inode(dir, res.dir_fattr);
return status;
}
@@ -1664,7 +1859,7 @@ static int _nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
{
struct nfs_server *server = NFS_SERVER(dir);
struct nfs_fh fhandle;
- struct nfs_fattr fattr;
+ struct nfs_fattr fattr, dir_fattr;
struct nfs4_create_arg arg = {
.dir_fh = NFS_FH(dir),
.server = server,
@@ -1677,6 +1872,7 @@ static int _nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
.server = server,
.fh = &fhandle,
.fattr = &fattr,
+ .dir_fattr = &dir_fattr,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CREATE],
@@ -1685,11 +1881,13 @@ static int _nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
};
int status;
- fattr.valid = 0;
+ nfs_fattr_init(&fattr);
+ nfs_fattr_init(&dir_fattr);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
if (!status) {
update_changeattr(dir, &res.dir_cinfo);
+ nfs_post_op_update_inode(dir, res.dir_fattr);
status = nfs_instantiate(dentry, &fhandle, &fattr);
}
return status;
@@ -1762,7 +1960,7 @@ static int _nfs4_proc_mknod(struct inode *dir, struct dentry *dentry,
{
struct nfs_server *server = NFS_SERVER(dir);
struct nfs_fh fh;
- struct nfs_fattr fattr;
+ struct nfs_fattr fattr, dir_fattr;
struct nfs4_create_arg arg = {
.dir_fh = NFS_FH(dir),
.server = server,
@@ -1774,6 +1972,7 @@ static int _nfs4_proc_mknod(struct inode *dir, struct dentry *dentry,
.server = server,
.fh = &fh,
.fattr = &fattr,
+ .dir_fattr = &dir_fattr,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CREATE],
@@ -1783,7 +1982,8 @@ static int _nfs4_proc_mknod(struct inode *dir, struct dentry *dentry,
int status;
int mode = sattr->ia_mode;
- fattr.valid = 0;
+ nfs_fattr_init(&fattr);
+ nfs_fattr_init(&dir_fattr);
BUG_ON(!(sattr->ia_valid & ATTR_MODE));
BUG_ON(!S_ISFIFO(mode) && !S_ISBLK(mode) && !S_ISCHR(mode) && !S_ISSOCK(mode));
@@ -1805,6 +2005,7 @@ static int _nfs4_proc_mknod(struct inode *dir, struct dentry *dentry,
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
if (status == 0) {
update_changeattr(dir, &res.dir_cinfo);
+ nfs_post_op_update_inode(dir, res.dir_fattr);
status = nfs_instantiate(dentry, &fh, &fattr);
}
return status;
@@ -1836,7 +2037,7 @@ static int _nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
.rpc_resp = fsstat,
};
- fsstat->fattr->valid = 0;
+ nfs_fattr_init(fsstat->fattr);
return rpc_call_sync(server->client, &msg, 0);
}
@@ -1883,7 +2084,7 @@ static int nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, str
static int nfs4_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *fsinfo)
{
- fsinfo->fattr->valid = 0;
+ nfs_fattr_init(fsinfo->fattr);
return nfs4_do_fsinfo(server, fhandle, fsinfo);
}
@@ -1906,7 +2107,7 @@ static int _nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle
return 0;
}
- pathconf->fattr->valid = 0;
+ nfs_fattr_init(pathconf->fattr);
return rpc_call_sync(server->client, &msg, 0);
}
@@ -1973,8 +2174,10 @@ nfs4_write_done(struct rpc_task *task)
rpc_restart_call(task);
return;
}
- if (task->tk_status >= 0)
+ if (task->tk_status >= 0) {
renew_lease(NFS_SERVER(inode), data->timestamp);
+ nfs_post_op_update_inode(inode, data->res.fattr);
+ }
/* Call back common NFS writeback processing */
nfs_writeback_done(task);
}
@@ -1990,6 +2193,7 @@ nfs4_proc_write_setup(struct nfs_write_data *data, int how)
.rpc_cred = data->cred,
};
struct inode *inode = data->inode;
+ struct nfs_server *server = NFS_SERVER(inode);
int stable;
int flags;
@@ -2001,6 +2205,8 @@ nfs4_proc_write_setup(struct nfs_write_data *data, int how)
} else
stable = NFS_UNSTABLE;
data->args.stable = stable;
+ data->args.bitmask = server->attr_bitmask;
+ data->res.server = server;
data->timestamp = jiffies;
@@ -2022,6 +2228,8 @@ nfs4_commit_done(struct rpc_task *task)
rpc_restart_call(task);
return;
}
+ if (task->tk_status >= 0)
+ nfs_post_op_update_inode(inode, data->res.fattr);
/* Call back common NFS writeback processing */
nfs_commit_done(task);
}
@@ -2037,8 +2245,12 @@ nfs4_proc_commit_setup(struct nfs_write_data *data, int how)
.rpc_cred = data->cred,
};
struct inode *inode = data->inode;
+ struct nfs_server *server = NFS_SERVER(inode);
int flags;
+ data->args.bitmask = server->attr_bitmask;
+ data->res.server = server;
+
/* Set the initial flags for the task. */
flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
@@ -2106,65 +2318,6 @@ nfs4_proc_renew(struct nfs4_client *clp)
return 0;
}
-/*
- * We will need to arrange for the VFS layer to provide an atomic open.
- * Until then, this open method is prone to inefficiency and race conditions
- * due to the lookup, potential create, and open VFS calls from sys_open()
- * placed on the wire.
- */
-static int
-nfs4_proc_file_open(struct inode *inode, struct file *filp)
-{
- struct dentry *dentry = filp->f_dentry;
- struct nfs_open_context *ctx;
- struct nfs4_state *state = NULL;
- struct rpc_cred *cred;
- int status = -ENOMEM;
-
- dprintk("nfs4_proc_file_open: starting on (%.*s/%.*s)\n",
- (int)dentry->d_parent->d_name.len,
- dentry->d_parent->d_name.name,
- (int)dentry->d_name.len, dentry->d_name.name);
-
-
- /* Find our open stateid */
- cred = rpcauth_lookupcred(NFS_SERVER(inode)->client->cl_auth, 0);
- if (IS_ERR(cred))
- return PTR_ERR(cred);
- ctx = alloc_nfs_open_context(dentry, cred);
- put_rpccred(cred);
- if (unlikely(ctx == NULL))
- return -ENOMEM;
- status = -EIO; /* ERACE actually */
- state = nfs4_find_state(inode, cred, filp->f_mode);
- if (unlikely(state == NULL))
- goto no_state;
- ctx->state = state;
- nfs4_close_state(state, filp->f_mode);
- ctx->mode = filp->f_mode;
- nfs_file_set_open_context(filp, ctx);
- put_nfs_open_context(ctx);
- if (filp->f_mode & FMODE_WRITE)
- nfs_begin_data_update(inode);
- return 0;
-no_state:
- printk(KERN_WARNING "NFS: v4 raced in function %s\n", __FUNCTION__);
- put_nfs_open_context(ctx);
- return status;
-}
-
-/*
- * Release our state
- */
-static int
-nfs4_proc_file_release(struct inode *inode, struct file *filp)
-{
- if (filp->f_mode & FMODE_WRITE)
- nfs_end_data_update(inode);
- nfs_file_clear_open_context(filp);
- return 0;
-}
-
static inline int nfs4_server_supports_acls(struct nfs_server *server)
{
return (server->caps & NFS_CAP_ACLS)
@@ -2285,7 +2438,7 @@ static inline ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size
return -ENOMEM;
args.acl_pages[0] = localpage;
args.acl_pgbase = 0;
- args.acl_len = PAGE_SIZE;
+ resp_len = args.acl_len = PAGE_SIZE;
} else {
resp_buf = buf;
buf_to_pages(buf, buflen, args.acl_pages, &args.acl_pgbase);
@@ -2345,6 +2498,7 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen
if (!nfs4_server_supports_acls(server))
return -EOPNOTSUPP;
+ nfs_inode_return_delegation(inode);
buf_to_pages(buf, buflen, arg.acl_pages, &arg.acl_pgbase);
ret = rpc_call_sync(NFS_SERVER(inode)->client, &msg, 0);
if (ret == 0)
@@ -2353,7 +2507,7 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen
}
static int
-nfs4_async_handle_error(struct rpc_task *task, struct nfs_server *server)
+nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server)
{
struct nfs4_client *clp = server->nfs4_state;
@@ -2431,7 +2585,7 @@ static int nfs4_delay(struct rpc_clnt *clnt, long *timeout)
/* This is the error handling routine for processes that are allowed
* to sleep.
*/
-int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
+int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
{
struct nfs4_client *clp = server->nfs4_state;
int ret = errorcode;
@@ -2450,12 +2604,10 @@ int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_
case -NFS4ERR_GRACE:
case -NFS4ERR_DELAY:
ret = nfs4_delay(server->client, &exception->timeout);
- if (ret == 0)
- exception->retry = 1;
- break;
+ if (ret != 0)
+ break;
case -NFS4ERR_OLD_STATEID:
- if (ret == 0)
- exception->retry = 1;
+ exception->retry = 1;
}
/* We failed to handle the error */
return nfs4_map_errors(ret);
@@ -2632,7 +2784,6 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
down_read(&clp->cl_sem);
nlo.clientid = clp->cl_clientid;
- down(&state->lock_sema);
status = nfs4_set_lock_state(state, request);
if (status != 0)
goto out;
@@ -2659,7 +2810,6 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
status = 0;
}
out:
- up(&state->lock_sema);
up_read(&clp->cl_sem);
return status;
}
@@ -2696,79 +2846,153 @@ static int do_vfs_lock(struct file *file, struct file_lock *fl)
return res;
}
-static int _nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *request)
+struct nfs4_unlockdata {
+ struct nfs_lockargs arg;
+ struct nfs_locku_opargs luargs;
+ struct nfs_lockres res;
+ struct nfs4_lock_state *lsp;
+ struct nfs_open_context *ctx;
+ atomic_t refcount;
+ struct completion completion;
+};
+
+static void nfs4_locku_release_calldata(struct nfs4_unlockdata *calldata)
{
- struct inode *inode = state->inode;
- struct nfs_server *server = NFS_SERVER(inode);
- struct nfs4_client *clp = server->nfs4_state;
- struct nfs_lockargs arg = {
- .fh = NFS_FH(inode),
- .type = nfs4_lck_type(cmd, request),
- .offset = request->fl_start,
- .length = nfs4_lck_length(request),
- };
- struct nfs_lockres res = {
- .server = server,
- };
+ if (atomic_dec_and_test(&calldata->refcount)) {
+ nfs_free_seqid(calldata->luargs.seqid);
+ nfs4_put_lock_state(calldata->lsp);
+ put_nfs_open_context(calldata->ctx);
+ kfree(calldata);
+ }
+}
+
+static void nfs4_locku_complete(struct nfs4_unlockdata *calldata)
+{
+ complete(&calldata->completion);
+ nfs4_locku_release_calldata(calldata);
+}
+
+static void nfs4_locku_done(struct rpc_task *task)
+{
+ struct nfs4_unlockdata *calldata = (struct nfs4_unlockdata *)task->tk_calldata;
+
+ nfs_increment_lock_seqid(task->tk_status, calldata->luargs.seqid);
+ switch (task->tk_status) {
+ case 0:
+ memcpy(calldata->lsp->ls_stateid.data,
+ calldata->res.u.stateid.data,
+ sizeof(calldata->lsp->ls_stateid.data));
+ break;
+ case -NFS4ERR_STALE_STATEID:
+ case -NFS4ERR_EXPIRED:
+ nfs4_schedule_state_recovery(calldata->res.server->nfs4_state);
+ break;
+ default:
+ if (nfs4_async_handle_error(task, calldata->res.server) == -EAGAIN) {
+ rpc_restart_call(task);
+ return;
+ }
+ }
+ nfs4_locku_complete(calldata);
+}
+
+static void nfs4_locku_begin(struct rpc_task *task)
+{
+ struct nfs4_unlockdata *calldata = (struct nfs4_unlockdata *)task->tk_calldata;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LOCKU],
- .rpc_argp = &arg,
- .rpc_resp = &res,
- .rpc_cred = state->owner->so_cred,
+ .rpc_argp = &calldata->arg,
+ .rpc_resp = &calldata->res,
+ .rpc_cred = calldata->lsp->ls_state->owner->so_cred,
};
+ int status;
+
+ status = nfs_wait_on_sequence(calldata->luargs.seqid, task);
+ if (status != 0)
+ return;
+ if ((calldata->lsp->ls_flags & NFS_LOCK_INITIALIZED) == 0) {
+ nfs4_locku_complete(calldata);
+ task->tk_exit = NULL;
+ rpc_exit(task, 0);
+ return;
+ }
+ rpc_call_setup(task, &msg, 0);
+}
+
+static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *request)
+{
+ struct nfs4_unlockdata *calldata;
+ struct inode *inode = state->inode;
+ struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_lock_state *lsp;
- struct nfs_locku_opargs luargs;
int status;
-
- down_read(&clp->cl_sem);
- down(&state->lock_sema);
+
+ /* Is this a delegated lock? */
+ if (test_bit(NFS_DELEGATED_STATE, &state->flags))
+ return do_vfs_lock(request->fl_file, request);
+
status = nfs4_set_lock_state(state, request);
if (status != 0)
- goto out;
+ return status;
lsp = request->fl_u.nfs4_fl.owner;
/* We might have lost the locks! */
if ((lsp->ls_flags & NFS_LOCK_INITIALIZED) == 0)
- goto out;
- luargs.seqid = lsp->ls_seqid;
- memcpy(&luargs.stateid, &lsp->ls_stateid, sizeof(luargs.stateid));
- arg.u.locku = &luargs;
- status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
- nfs4_increment_lock_seqid(status, lsp);
-
- if (status == 0)
- memcpy(&lsp->ls_stateid, &res.u.stateid,
- sizeof(lsp->ls_stateid));
-out:
- up(&state->lock_sema);
+ return 0;
+ calldata = kmalloc(sizeof(*calldata), GFP_KERNEL);
+ if (calldata == NULL)
+ return -ENOMEM;
+ calldata->luargs.seqid = nfs_alloc_seqid(&lsp->ls_seqid);
+ if (calldata->luargs.seqid == NULL) {
+ kfree(calldata);
+ return -ENOMEM;
+ }
+ calldata->luargs.stateid = &lsp->ls_stateid;
+ calldata->arg.fh = NFS_FH(inode);
+ calldata->arg.type = nfs4_lck_type(cmd, request);
+ calldata->arg.offset = request->fl_start;
+ calldata->arg.length = nfs4_lck_length(request);
+ calldata->arg.u.locku = &calldata->luargs;
+ calldata->res.server = server;
+ calldata->lsp = lsp;
+ atomic_inc(&lsp->ls_count);
+
+ /* Ensure we don't close file until we're done freeing locks! */
+ calldata->ctx = get_nfs_open_context((struct nfs_open_context*)request->fl_file->private_data);
+
+ atomic_set(&calldata->refcount, 2);
+ init_completion(&calldata->completion);
+
+ status = nfs4_call_async(NFS_SERVER(inode)->client, nfs4_locku_begin,
+ nfs4_locku_done, calldata);
if (status == 0)
- do_vfs_lock(request->fl_file, request);
- up_read(&clp->cl_sem);
+ wait_for_completion_interruptible(&calldata->completion);
+ do_vfs_lock(request->fl_file, request);
+ nfs4_locku_release_calldata(calldata);
return status;
}
-static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *request)
-{
- struct nfs4_exception exception = { };
- int err;
-
- do {
- err = nfs4_handle_exception(NFS_SERVER(state->inode),
- _nfs4_proc_unlck(state, cmd, request),
- &exception);
- } while (exception.retry);
- return err;
-}
-
static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *request, int reclaim)
{
struct inode *inode = state->inode;
struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_lock_state *lsp = request->fl_u.nfs4_fl.owner;
+ struct nfs_lock_opargs largs = {
+ .lock_stateid = &lsp->ls_stateid,
+ .open_stateid = &state->stateid,
+ .lock_owner = {
+ .clientid = server->nfs4_state->cl_clientid,
+ .id = lsp->ls_id,
+ },
+ .reclaim = reclaim,
+ };
struct nfs_lockargs arg = {
.fh = NFS_FH(inode),
.type = nfs4_lck_type(cmd, request),
.offset = request->fl_start,
.length = nfs4_lck_length(request),
+ .u = {
+ .lock = &largs,
+ },
};
struct nfs_lockres res = {
.server = server,
@@ -2779,53 +3003,39 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *r
.rpc_resp = &res,
.rpc_cred = state->owner->so_cred,
};
- struct nfs_lock_opargs largs = {
- .reclaim = reclaim,
- .new_lock_owner = 0,
- };
- int status;
+ int status = -ENOMEM;
- if (!(lsp->ls_flags & NFS_LOCK_INITIALIZED)) {
+ largs.lock_seqid = nfs_alloc_seqid(&lsp->ls_seqid);
+ if (largs.lock_seqid == NULL)
+ return -ENOMEM;
+ if (!(lsp->ls_seqid.flags & NFS_SEQID_CONFIRMED)) {
struct nfs4_state_owner *owner = state->owner;
- struct nfs_open_to_lock otl = {
- .lock_owner = {
- .clientid = server->nfs4_state->cl_clientid,
- },
- };
-
- otl.lock_seqid = lsp->ls_seqid;
- otl.lock_owner.id = lsp->ls_id;
- memcpy(&otl.open_stateid, &state->stateid, sizeof(otl.open_stateid));
- largs.u.open_lock = &otl;
+
+ largs.open_seqid = nfs_alloc_seqid(&owner->so_seqid);
+ if (largs.open_seqid == NULL)
+ goto out;
largs.new_lock_owner = 1;
- arg.u.lock = &largs;
- down(&owner->so_sema);
- otl.open_seqid = owner->so_seqid;
status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
- /* increment open_owner seqid on success, and
- * seqid mutating errors */
- nfs4_increment_seqid(status, owner);
- up(&owner->so_sema);
- if (status == 0) {
- lsp->ls_flags |= NFS_LOCK_INITIALIZED;
- lsp->ls_seqid++;
+ /* increment open seqid on success, and seqid mutating errors */
+ if (largs.new_lock_owner != 0) {
+ nfs_increment_open_seqid(status, largs.open_seqid);
+ if (status == 0)
+ nfs_confirm_seqid(&lsp->ls_seqid, 0);
}
- } else {
- struct nfs_exist_lock el = {
- .seqid = lsp->ls_seqid,
- };
- memcpy(&el.stateid, &lsp->ls_stateid, sizeof(el.stateid));
- largs.u.exist_lock = &el;
- arg.u.lock = &largs;
+ nfs_free_seqid(largs.open_seqid);
+ } else
status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
- /* increment seqid on success, and * seqid mutating errors*/
- nfs4_increment_lock_seqid(status, lsp);
- }
+ /* increment lock seqid on success, and seqid mutating errors*/
+ nfs_increment_lock_seqid(status, largs.lock_seqid);
/* save the returned stateid. */
- if (status == 0)
- memcpy(&lsp->ls_stateid, &res.u.stateid, sizeof(nfs4_stateid));
- else if (status == -NFS4ERR_DENIED)
+ if (status == 0) {
+ memcpy(lsp->ls_stateid.data, res.u.stateid.data,
+ sizeof(lsp->ls_stateid.data));
+ lsp->ls_flags |= NFS_LOCK_INITIALIZED;
+ } else if (status == -NFS4ERR_DENIED)
status = -EAGAIN;
+out:
+ nfs_free_seqid(largs.lock_seqid);
return status;
}
@@ -2835,6 +3045,9 @@ static int nfs4_lock_reclaim(struct nfs4_state *state, struct file_lock *request
struct nfs4_exception exception = { };
int err;
+ /* Cache the lock if possible... */
+ if (test_bit(NFS_DELEGATED_STATE, &state->flags))
+ return 0;
do {
err = _nfs4_do_setlk(state, F_SETLK, request, 1);
if (err != -NFS4ERR_DELAY)
@@ -2850,6 +3063,9 @@ static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request
struct nfs4_exception exception = { };
int err;
+ err = nfs4_set_lock_state(state, request);
+ if (err != 0)
+ return err;
do {
err = _nfs4_do_setlk(state, F_SETLK, request, 0);
if (err != -NFS4ERR_DELAY)
@@ -2864,18 +3080,26 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock
struct nfs4_client *clp = state->owner->so_client;
int status;
+ /* Is this a delegated open? */
+ if (NFS_I(state->inode)->delegation_state != 0) {
+ /* Yes: cache locks! */
+ status = do_vfs_lock(request->fl_file, request);
+ /* ...but avoid races with delegation recall... */
+ if (status < 0 || test_bit(NFS_DELEGATED_STATE, &state->flags))
+ return status;
+ }
down_read(&clp->cl_sem);
- down(&state->lock_sema);
status = nfs4_set_lock_state(state, request);
- if (status == 0)
- status = _nfs4_do_setlk(state, cmd, request, 0);
- up(&state->lock_sema);
- if (status == 0) {
- /* Note: we always want to sleep here! */
- request->fl_flags |= FL_SLEEP;
- if (do_vfs_lock(request->fl_file, request) < 0)
- printk(KERN_WARNING "%s: VFS is out of sync with lock manager!\n", __FUNCTION__);
- }
+ if (status != 0)
+ goto out;
+ status = _nfs4_do_setlk(state, cmd, request, 0);
+ if (status != 0)
+ goto out;
+ /* Note: we always want to sleep here! */
+ request->fl_flags |= FL_SLEEP;
+ if (do_vfs_lock(request->fl_file, request) < 0)
+ printk(KERN_WARNING "%s: VFS is out of sync with lock manager!\n", __FUNCTION__);
+out:
up_read(&clp->cl_sem);
return status;
}
@@ -2929,6 +3153,24 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
return status;
}
+int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
+{
+ struct nfs_server *server = NFS_SERVER(state->inode);
+ struct nfs4_exception exception = { };
+ int err;
+
+ err = nfs4_set_lock_state(state, fl);
+ if (err != 0)
+ goto out;
+ do {
+ err = _nfs4_do_setlk(state, F_SETLK, fl, 0);
+ if (err != -NFS4ERR_DELAY)
+ break;
+ err = nfs4_handle_exception(server, err, &exception);
+ } while (exception.retry);
+out:
+ return err;
+}
#define XATTR_NAME_NFSV4_ACL "system.nfs4_acl"
@@ -3024,8 +3266,8 @@ struct nfs_rpc_ops nfs_v4_clientops = {
.read_setup = nfs4_proc_read_setup,
.write_setup = nfs4_proc_write_setup,
.commit_setup = nfs4_proc_commit_setup,
- .file_open = nfs4_proc_file_open,
- .file_release = nfs4_proc_file_release,
+ .file_open = nfs_open,
+ .file_release = nfs_release,
.lock = nfs4_proc_lock,
.clear_acl_cache = nfs4_zap_acl_attr,
};
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index afe587d82f1e..5ef4c57618fe 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -69,10 +69,8 @@ init_nfsv4_state(struct nfs_server *server)
void
destroy_nfsv4_state(struct nfs_server *server)
{
- if (server->mnt_path) {
- kfree(server->mnt_path);
- server->mnt_path = NULL;
- }
+ kfree(server->mnt_path);
+ server->mnt_path = NULL;
if (server->nfs4_state) {
nfs4_put_client(server->nfs4_state);
server->nfs4_state = NULL;
@@ -264,13 +262,16 @@ nfs4_alloc_state_owner(void)
{
struct nfs4_state_owner *sp;
- sp = kmalloc(sizeof(*sp),GFP_KERNEL);
+ sp = kzalloc(sizeof(*sp),GFP_KERNEL);
if (!sp)
return NULL;
- init_MUTEX(&sp->so_sema);
- sp->so_seqid = 0; /* arbitrary */
+ spin_lock_init(&sp->so_lock);
INIT_LIST_HEAD(&sp->so_states);
INIT_LIST_HEAD(&sp->so_delegations);
+ rpc_init_wait_queue(&sp->so_sequence.wait, "Seqid_waitqueue");
+ sp->so_seqid.sequence = &sp->so_sequence;
+ spin_lock_init(&sp->so_sequence.lock);
+ INIT_LIST_HEAD(&sp->so_sequence.list);
atomic_set(&sp->so_count, 1);
return sp;
}
@@ -308,8 +309,7 @@ struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server, struct
new = NULL;
}
spin_unlock(&clp->cl_lock);
- if (new)
- kfree(new);
+ kfree(new);
if (sp != NULL)
return sp;
put_rpccred(cred);
@@ -359,35 +359,25 @@ nfs4_alloc_open_state(void)
memset(state->stateid.data, 0, sizeof(state->stateid.data));
atomic_set(&state->count, 1);
INIT_LIST_HEAD(&state->lock_states);
- init_MUTEX(&state->lock_sema);
spin_lock_init(&state->state_lock);
return state;
}
-static struct nfs4_state *
-__nfs4_find_state(struct inode *inode, struct rpc_cred *cred, mode_t mode)
+void
+nfs4_state_set_mode_locked(struct nfs4_state *state, mode_t mode)
{
- struct nfs_inode *nfsi = NFS_I(inode);
- struct nfs4_state *state;
-
- mode &= (FMODE_READ|FMODE_WRITE);
- list_for_each_entry(state, &nfsi->open_states, inode_states) {
- if (state->owner->so_cred != cred)
- continue;
- if ((mode & FMODE_READ) != 0 && state->nreaders == 0)
- continue;
- if ((mode & FMODE_WRITE) != 0 && state->nwriters == 0)
- continue;
- if ((state->state & mode) != mode)
- continue;
- atomic_inc(&state->count);
- if (mode & FMODE_READ)
- state->nreaders++;
+ if (state->state == mode)
+ return;
+ /* NB! List reordering - see the reclaim code for why. */
+ if ((mode & FMODE_WRITE) != (state->state & FMODE_WRITE)) {
if (mode & FMODE_WRITE)
- state->nwriters++;
- return state;
+ list_move(&state->open_states, &state->owner->so_states);
+ else
+ list_move_tail(&state->open_states, &state->owner->so_states);
}
- return NULL;
+ if (mode == 0)
+ list_del_init(&state->inode_states);
+ state->state = mode;
}
static struct nfs4_state *
@@ -398,7 +388,7 @@ __nfs4_find_state_byowner(struct inode *inode, struct nfs4_state_owner *owner)
list_for_each_entry(state, &nfsi->open_states, inode_states) {
/* Is this in the process of being freed? */
- if (state->nreaders == 0 && state->nwriters == 0)
+ if (state->state == 0)
continue;
if (state->owner == owner) {
atomic_inc(&state->count);
@@ -408,17 +398,6 @@ __nfs4_find_state_byowner(struct inode *inode, struct nfs4_state_owner *owner)
return NULL;
}
-struct nfs4_state *
-nfs4_find_state(struct inode *inode, struct rpc_cred *cred, mode_t mode)
-{
- struct nfs4_state *state;
-
- spin_lock(&inode->i_lock);
- state = __nfs4_find_state(inode, cred, mode);
- spin_unlock(&inode->i_lock);
- return state;
-}
-
static void
nfs4_free_open_state(struct nfs4_state *state)
{
@@ -437,21 +416,23 @@ nfs4_get_open_state(struct inode *inode, struct nfs4_state_owner *owner)
if (state)
goto out;
new = nfs4_alloc_open_state();
+ spin_lock(&owner->so_lock);
spin_lock(&inode->i_lock);
state = __nfs4_find_state_byowner(inode, owner);
if (state == NULL && new != NULL) {
state = new;
- /* Caller *must* be holding owner->so_sem */
- /* Note: The reclaim code dictates that we add stateless
- * and read-only stateids to the end of the list */
- list_add_tail(&state->open_states, &owner->so_states);
state->owner = owner;
atomic_inc(&owner->so_count);
list_add(&state->inode_states, &nfsi->open_states);
state->inode = igrab(inode);
spin_unlock(&inode->i_lock);
+ /* Note: The reclaim code dictates that we add stateless
+ * and read-only stateids to the end of the list */
+ list_add_tail(&state->open_states, &owner->so_states);
+ spin_unlock(&owner->so_lock);
} else {
spin_unlock(&inode->i_lock);
+ spin_unlock(&owner->so_lock);
if (new)
nfs4_free_open_state(new);
}
@@ -461,68 +442,59 @@ out:
/*
* Beware! Caller must be holding exactly one
- * reference to clp->cl_sem and owner->so_sema!
+ * reference to clp->cl_sem!
*/
void nfs4_put_open_state(struct nfs4_state *state)
{
struct inode *inode = state->inode;
struct nfs4_state_owner *owner = state->owner;
- if (!atomic_dec_and_lock(&state->count, &inode->i_lock))
+ if (!atomic_dec_and_lock(&state->count, &owner->so_lock))
return;
+ spin_lock(&inode->i_lock);
if (!list_empty(&state->inode_states))
list_del(&state->inode_states);
- spin_unlock(&inode->i_lock);
list_del(&state->open_states);
+ spin_unlock(&inode->i_lock);
+ spin_unlock(&owner->so_lock);
iput(inode);
- BUG_ON (state->state != 0);
nfs4_free_open_state(state);
nfs4_put_state_owner(owner);
}
/*
- * Beware! Caller must be holding no references to clp->cl_sem!
- * of owner->so_sema!
+ * Close the current file.
*/
void nfs4_close_state(struct nfs4_state *state, mode_t mode)
{
struct inode *inode = state->inode;
struct nfs4_state_owner *owner = state->owner;
- struct nfs4_client *clp = owner->so_client;
- int newstate;
+ int oldstate, newstate = 0;
atomic_inc(&owner->so_count);
- down_read(&clp->cl_sem);
- down(&owner->so_sema);
/* Protect against nfs4_find_state() */
+ spin_lock(&owner->so_lock);
spin_lock(&inode->i_lock);
if (mode & FMODE_READ)
state->nreaders--;
if (mode & FMODE_WRITE)
state->nwriters--;
- if (state->nwriters == 0) {
- if (state->nreaders == 0)
- list_del_init(&state->inode_states);
- /* See reclaim code */
- list_move_tail(&state->open_states, &owner->so_states);
+ oldstate = newstate = state->state;
+ if (state->nreaders == 0)
+ newstate &= ~FMODE_READ;
+ if (state->nwriters == 0)
+ newstate &= ~FMODE_WRITE;
+ if (test_bit(NFS_DELEGATED_STATE, &state->flags)) {
+ nfs4_state_set_mode_locked(state, newstate);
+ oldstate = newstate;
}
spin_unlock(&inode->i_lock);
- newstate = 0;
- if (state->state != 0) {
- if (state->nreaders)
- newstate |= FMODE_READ;
- if (state->nwriters)
- newstate |= FMODE_WRITE;
- if (state->state == newstate)
- goto out;
- if (nfs4_do_close(inode, state, newstate) == -EINPROGRESS)
- return;
- }
-out:
+ spin_unlock(&owner->so_lock);
+
+ if (oldstate != newstate && nfs4_do_close(inode, state) == 0)
+ return;
nfs4_put_open_state(state);
- up(&owner->so_sema);
nfs4_put_state_owner(owner);
- up_read(&clp->cl_sem);
}
/*
@@ -546,19 +518,16 @@ __nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
* Return a compatible lock_state. If no initialized lock_state structure
* exists, return an uninitialized one.
*
- * The caller must be holding state->lock_sema
*/
static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
{
struct nfs4_lock_state *lsp;
struct nfs4_client *clp = state->owner->so_client;
- lsp = kmalloc(sizeof(*lsp), GFP_KERNEL);
+ lsp = kzalloc(sizeof(*lsp), GFP_KERNEL);
if (lsp == NULL)
return NULL;
- lsp->ls_flags = 0;
- lsp->ls_seqid = 0; /* arbitrary */
- memset(lsp->ls_stateid.data, 0, sizeof(lsp->ls_stateid.data));
+ lsp->ls_seqid.sequence = &state->owner->so_sequence;
atomic_set(&lsp->ls_count, 1);
lsp->ls_owner = fl_owner;
spin_lock(&clp->cl_lock);
@@ -572,7 +541,7 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
* Return a compatible lock_state. If no initialized lock_state structure
* exists, return an uninitialized one.
*
- * The caller must be holding state->lock_sema and clp->cl_sem
+ * The caller must be holding clp->cl_sem
*/
static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner)
{
@@ -605,7 +574,7 @@ static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_
* Release reference to lock_state, and free it if we see that
* it is no longer in use
*/
-static void nfs4_put_lock_state(struct nfs4_lock_state *lsp)
+void nfs4_put_lock_state(struct nfs4_lock_state *lsp)
{
struct nfs4_state *state;
@@ -673,29 +642,94 @@ void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t f
nfs4_put_lock_state(lsp);
}
-/*
-* Called with state->lock_sema and clp->cl_sem held.
-*/
-void nfs4_increment_lock_seqid(int status, struct nfs4_lock_state *lsp)
+struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter)
+{
+ struct rpc_sequence *sequence = counter->sequence;
+ struct nfs_seqid *new;
+
+ new = kmalloc(sizeof(*new), GFP_KERNEL);
+ if (new != NULL) {
+ new->sequence = counter;
+ spin_lock(&sequence->lock);
+ list_add_tail(&new->list, &sequence->list);
+ spin_unlock(&sequence->lock);
+ }
+ return new;
+}
+
+void nfs_free_seqid(struct nfs_seqid *seqid)
{
- if (status == NFS_OK || seqid_mutating_err(-status))
- lsp->ls_seqid++;
+ struct rpc_sequence *sequence = seqid->sequence->sequence;
+
+ spin_lock(&sequence->lock);
+ list_del(&seqid->list);
+ spin_unlock(&sequence->lock);
+ rpc_wake_up(&sequence->wait);
+ kfree(seqid);
}
/*
-* Called with sp->so_sema and clp->cl_sem held.
-*
-* Increment the seqid if the OPEN/OPEN_DOWNGRADE/CLOSE succeeded, or
-* failed with a seqid incrementing error -
-* see comments nfs_fs.h:seqid_mutating_error()
-*/
-void nfs4_increment_seqid(int status, struct nfs4_state_owner *sp)
-{
- if (status == NFS_OK || seqid_mutating_err(-status))
- sp->so_seqid++;
- /* If the server returns BAD_SEQID, unhash state_owner here */
- if (status == -NFS4ERR_BAD_SEQID)
+ * Increment the seqid if the OPEN/OPEN_DOWNGRADE/CLOSE succeeded, or
+ * failed with a seqid incrementing error -
+ * see comments nfs_fs.h:seqid_mutating_error()
+ */
+static inline void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
+{
+ switch (status) {
+ case 0:
+ break;
+ case -NFS4ERR_BAD_SEQID:
+ case -NFS4ERR_STALE_CLIENTID:
+ case -NFS4ERR_STALE_STATEID:
+ case -NFS4ERR_BAD_STATEID:
+ case -NFS4ERR_BADXDR:
+ case -NFS4ERR_RESOURCE:
+ case -NFS4ERR_NOFILEHANDLE:
+ /* Non-seqid mutating errors */
+ return;
+ };
+ /*
+ * Note: no locking needed as we are guaranteed to be first
+ * on the sequence list
+ */
+ seqid->sequence->counter++;
+}
+
+void nfs_increment_open_seqid(int status, struct nfs_seqid *seqid)
+{
+ if (status == -NFS4ERR_BAD_SEQID) {
+ struct nfs4_state_owner *sp = container_of(seqid->sequence,
+ struct nfs4_state_owner, so_seqid);
nfs4_drop_state_owner(sp);
+ }
+ return nfs_increment_seqid(status, seqid);
+}
+
+/*
+ * Increment the seqid if the LOCK/LOCKU succeeded, or
+ * failed with a seqid incrementing error -
+ * see comments nfs_fs.h:seqid_mutating_error()
+ */
+void nfs_increment_lock_seqid(int status, struct nfs_seqid *seqid)
+{
+ return nfs_increment_seqid(status, seqid);
+}
+
+int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task)
+{
+ struct rpc_sequence *sequence = seqid->sequence->sequence;
+ int status = 0;
+
+ if (sequence->list.next == &seqid->list)
+ goto out;
+ spin_lock(&sequence->lock);
+ if (sequence->list.next != &seqid->list) {
+ rpc_sleep_on(&sequence->wait, task, NULL, NULL);
+ status = -EAGAIN;
+ }
+ spin_unlock(&sequence->lock);
+out:
+ return status;
}
static int reclaimer(void *);
@@ -747,7 +781,7 @@ static int nfs4_reclaim_locks(struct nfs4_state_recovery_ops *ops, struct nfs4_s
int status = 0;
for (fl = inode->i_flock; fl != 0; fl = fl->fl_next) {
- if (!(fl->fl_flags & FL_POSIX))
+ if (!(fl->fl_flags & (FL_POSIX|FL_FLOCK)))
continue;
if (((struct nfs_open_context *)fl->fl_file->private_data)->state != state)
continue;
@@ -762,7 +796,7 @@ static int nfs4_reclaim_locks(struct nfs4_state_recovery_ops *ops, struct nfs4_s
case -NFS4ERR_NO_GRACE:
case -NFS4ERR_RECLAIM_BAD:
case -NFS4ERR_RECLAIM_CONFLICT:
- /* kill_proc(fl->fl_owner, SIGLOST, 1); */
+ /* kill_proc(fl->fl_pid, SIGLOST, 1); */
break;
case -NFS4ERR_STALE_CLIENTID:
goto out_err;
@@ -791,8 +825,6 @@ static int nfs4_reclaim_open_state(struct nfs4_state_recovery_ops *ops, struct n
if (state->state == 0)
continue;
status = ops->recover_open(sp, state);
- list_for_each_entry(lock, &state->lock_states, ls_locks)
- lock->ls_flags &= ~NFS_LOCK_INITIALIZED;
if (status >= 0) {
status = nfs4_reclaim_locks(ops, state);
if (status < 0)
@@ -831,6 +863,28 @@ out_err:
return status;
}
+static void nfs4_state_mark_reclaim(struct nfs4_client *clp)
+{
+ struct nfs4_state_owner *sp;
+ struct nfs4_state *state;
+ struct nfs4_lock_state *lock;
+
+ /* Reset all sequence ids to zero */
+ list_for_each_entry(sp, &clp->cl_state_owners, so_list) {
+ sp->so_seqid.counter = 0;
+ sp->so_seqid.flags = 0;
+ spin_lock(&sp->so_lock);
+ list_for_each_entry(state, &sp->so_states, open_states) {
+ list_for_each_entry(lock, &state->lock_states, ls_locks) {
+ lock->ls_seqid.counter = 0;
+ lock->ls_seqid.flags = 0;
+ lock->ls_flags &= ~NFS_LOCK_INITIALIZED;
+ }
+ }
+ spin_unlock(&sp->so_lock);
+ }
+}
+
static int reclaimer(void *ptr)
{
struct reclaimer_args *args = (struct reclaimer_args *)ptr;
@@ -864,6 +918,7 @@ restart_loop:
default:
ops = &nfs4_network_partition_recovery_ops;
};
+ nfs4_state_mark_reclaim(clp);
status = __nfs4_init_client(clp);
if (status)
goto out_error;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 6c564ef9489e..fbbace8a30c4 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -95,6 +95,8 @@ static int nfs_stat_to_errno(int);
#define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
#define encode_savefh_maxsz (op_encode_hdr_maxsz)
#define decode_savefh_maxsz (op_decode_hdr_maxsz)
+#define encode_restorefh_maxsz (op_encode_hdr_maxsz)
+#define decode_restorefh_maxsz (op_decode_hdr_maxsz)
#define encode_fsinfo_maxsz (op_encode_hdr_maxsz + 2)
#define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11)
#define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
@@ -157,16 +159,20 @@ static int nfs_stat_to_errno(int);
op_decode_hdr_maxsz + 2)
#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
- op_encode_hdr_maxsz + 8)
+ op_encode_hdr_maxsz + 8 + \
+ encode_getattr_maxsz)
#define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
- op_decode_hdr_maxsz + 4)
+ op_decode_hdr_maxsz + 4 + \
+ decode_getattr_maxsz)
#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
- op_encode_hdr_maxsz + 3)
+ op_encode_hdr_maxsz + 3 + \
+ encode_getattr_maxsz)
#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
- op_decode_hdr_maxsz + 2)
+ op_decode_hdr_maxsz + 2 + \
+ decode_getattr_maxsz)
#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + \
@@ -196,17 +202,21 @@ static int nfs_stat_to_errno(int);
#define NFS4_enc_open_downgrade_sz \
(compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
- op_encode_hdr_maxsz + 7)
+ op_encode_hdr_maxsz + 7 + \
+ encode_getattr_maxsz)
#define NFS4_dec_open_downgrade_sz \
(compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
- op_decode_hdr_maxsz + 4)
+ op_decode_hdr_maxsz + 4 + \
+ decode_getattr_maxsz)
#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
- op_encode_hdr_maxsz + 5)
+ op_encode_hdr_maxsz + 5 + \
+ encode_getattr_maxsz)
#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
- op_decode_hdr_maxsz + 4)
+ op_decode_hdr_maxsz + 4 + \
+ decode_getattr_maxsz)
#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 4 + \
@@ -300,30 +310,44 @@ static int nfs_stat_to_errno(int);
decode_getfh_maxsz)
#define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
- encode_remove_maxsz)
+ encode_remove_maxsz + \
+ encode_getattr_maxsz)
#define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
- op_decode_hdr_maxsz + 5)
+ op_decode_hdr_maxsz + 5 + \
+ decode_getattr_maxsz)
#define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_savefh_maxsz + \
encode_putfh_maxsz + \
- encode_rename_maxsz)
+ encode_rename_maxsz + \
+ encode_getattr_maxsz + \
+ encode_restorefh_maxsz + \
+ encode_getattr_maxsz)
#define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
decode_savefh_maxsz + \
decode_putfh_maxsz + \
- decode_rename_maxsz)
+ decode_rename_maxsz + \
+ decode_getattr_maxsz + \
+ decode_restorefh_maxsz + \
+ decode_getattr_maxsz)
#define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_savefh_maxsz + \
encode_putfh_maxsz + \
- encode_link_maxsz)
+ encode_link_maxsz + \
+ decode_getattr_maxsz + \
+ encode_restorefh_maxsz + \
+ decode_getattr_maxsz)
#define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
decode_savefh_maxsz + \
decode_putfh_maxsz + \
- decode_link_maxsz)
+ decode_link_maxsz + \
+ decode_getattr_maxsz + \
+ decode_restorefh_maxsz + \
+ decode_getattr_maxsz)
#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_symlink_maxsz + \
@@ -336,14 +360,20 @@ static int nfs_stat_to_errno(int);
decode_getfh_maxsz)
#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
+ encode_savefh_maxsz + \
encode_create_maxsz + \
+ encode_getfh_maxsz + \
encode_getattr_maxsz + \
- encode_getfh_maxsz)
+ encode_restorefh_maxsz + \
+ encode_getattr_maxsz)
#define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
+ decode_savefh_maxsz + \
decode_create_maxsz + \
+ decode_getfh_maxsz + \
decode_getattr_maxsz + \
- decode_getfh_maxsz)
+ decode_restorefh_maxsz + \
+ decode_getattr_maxsz)
#define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz)
@@ -602,10 +632,10 @@ static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
{
uint32_t *p;
- RESERVE_SPACE(8+sizeof(arg->stateid.data));
+ RESERVE_SPACE(8+sizeof(arg->stateid->data));
WRITE32(OP_CLOSE);
- WRITE32(arg->seqid);
- WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
+ WRITE32(arg->seqid->sequence->counter);
+ WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
return 0;
}
@@ -729,22 +759,18 @@ static int encode_lock(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
WRITE64(arg->length);
WRITE32(opargs->new_lock_owner);
if (opargs->new_lock_owner){
- struct nfs_open_to_lock *ol = opargs->u.open_lock;
-
RESERVE_SPACE(40);
- WRITE32(ol->open_seqid);
- WRITEMEM(&ol->open_stateid, sizeof(ol->open_stateid));
- WRITE32(ol->lock_seqid);
- WRITE64(ol->lock_owner.clientid);
+ WRITE32(opargs->open_seqid->sequence->counter);
+ WRITEMEM(opargs->open_stateid->data, sizeof(opargs->open_stateid->data));
+ WRITE32(opargs->lock_seqid->sequence->counter);
+ WRITE64(opargs->lock_owner.clientid);
WRITE32(4);
- WRITE32(ol->lock_owner.id);
+ WRITE32(opargs->lock_owner.id);
}
else {
- struct nfs_exist_lock *el = opargs->u.exist_lock;
-
RESERVE_SPACE(20);
- WRITEMEM(&el->stateid, sizeof(el->stateid));
- WRITE32(el->seqid);
+ WRITEMEM(opargs->lock_stateid->data, sizeof(opargs->lock_stateid->data));
+ WRITE32(opargs->lock_seqid->sequence->counter);
}
return 0;
@@ -775,8 +801,8 @@ static int encode_locku(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
RESERVE_SPACE(44);
WRITE32(OP_LOCKU);
WRITE32(arg->type);
- WRITE32(opargs->seqid);
- WRITEMEM(&opargs->stateid, sizeof(opargs->stateid));
+ WRITE32(opargs->seqid->sequence->counter);
+ WRITEMEM(opargs->stateid->data, sizeof(opargs->stateid->data));
WRITE64(arg->offset);
WRITE64(arg->length);
@@ -826,7 +852,7 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena
*/
RESERVE_SPACE(8);
WRITE32(OP_OPEN);
- WRITE32(arg->seqid);
+ WRITE32(arg->seqid->sequence->counter);
encode_share_access(xdr, arg->open_flags);
RESERVE_SPACE(16);
WRITE64(arg->clientid);
@@ -941,7 +967,7 @@ static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_con
RESERVE_SPACE(8+sizeof(arg->stateid.data));
WRITE32(OP_OPEN_CONFIRM);
WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
- WRITE32(arg->seqid);
+ WRITE32(arg->seqid->sequence->counter);
return 0;
}
@@ -950,10 +976,10 @@ static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closea
{
uint32_t *p;
- RESERVE_SPACE(8+sizeof(arg->stateid.data));
+ RESERVE_SPACE(8+sizeof(arg->stateid->data));
WRITE32(OP_OPEN_DOWNGRADE);
- WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
- WRITE32(arg->seqid);
+ WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
+ WRITE32(arg->seqid->sequence->counter);
encode_share_access(xdr, arg->open_flags);
return 0;
}
@@ -1117,6 +1143,17 @@ static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client
}
static int
+encode_restorefh(struct xdr_stream *xdr)
+{
+ uint32_t *p;
+
+ RESERVE_SPACE(4);
+ WRITE32(OP_RESTOREFH);
+
+ return 0;
+}
+
+static int
encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg)
{
uint32_t *p;
@@ -1296,14 +1333,18 @@ static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct n
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 3,
};
int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- if ((status = encode_putfh(&xdr, args->fh)) == 0)
- status = encode_remove(&xdr, args->name);
+ if ((status = encode_putfh(&xdr, args->fh)) != 0)
+ goto out;
+ if ((status = encode_remove(&xdr, args->name)) != 0)
+ goto out;
+ status = encode_getfattr(&xdr, args->bitmask);
+out:
return status;
}
@@ -1314,7 +1355,7 @@ static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct n
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 4,
+ .nops = 7,
};
int status;
@@ -1326,7 +1367,13 @@ static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct n
goto out;
if ((status = encode_putfh(&xdr, args->new_dir)) != 0)
goto out;
- status = encode_rename(&xdr, args->old_name, args->new_name);
+ if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0)
+ goto out;
+ if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
+ goto out;
+ if ((status = encode_restorefh(&xdr)) != 0)
+ goto out;
+ status = encode_getfattr(&xdr, args->bitmask);
out:
return status;
}
@@ -1338,7 +1385,7 @@ static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 4,
+ .nops = 7,
};
int status;
@@ -1350,7 +1397,13 @@ static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs
goto out;
if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
goto out;
- status = encode_link(&xdr, args->name);
+ if ((status = encode_link(&xdr, args->name)) != 0)
+ goto out;
+ if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
+ goto out;
+ if ((status = encode_restorefh(&xdr)) != 0)
+ goto out;
+ status = encode_getfattr(&xdr, args->bitmask);
out:
return status;
}
@@ -1362,7 +1415,7 @@ static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct n
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 4,
+ .nops = 7,
};
int status;
@@ -1370,10 +1423,16 @@ static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct n
encode_compound_hdr(&xdr, &hdr);
if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
goto out;
+ if ((status = encode_savefh(&xdr)) != 0)
+ goto out;
if ((status = encode_create(&xdr, args)) != 0)
goto out;
if ((status = encode_getfh(&xdr)) != 0)
goto out;
+ if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
+ goto out;
+ if ((status = encode_restorefh(&xdr)) != 0)
+ goto out;
status = encode_getfattr(&xdr, args->bitmask);
out:
return status;
@@ -1412,7 +1471,7 @@ static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_clos
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 3,
};
int status;
@@ -1422,6 +1481,9 @@ static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_clos
if(status)
goto out;
status = encode_close(&xdr, args);
+ if (status != 0)
+ goto out;
+ status = encode_getfattr(&xdr, args->bitmask);
out:
return status;
}
@@ -1433,15 +1495,21 @@ static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_opena
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 4,
+ .nops = 7,
};
int status;
+ status = nfs_wait_on_sequence(args->seqid, req->rq_task);
+ if (status != 0)
+ goto out;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
status = encode_putfh(&xdr, args->fh);
if (status)
goto out;
+ status = encode_savefh(&xdr);
+ if (status)
+ goto out;
status = encode_open(&xdr, args);
if (status)
goto out;
@@ -1449,6 +1517,12 @@ static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_opena
if (status)
goto out;
status = encode_getfattr(&xdr, args->bitmask);
+ if (status)
+ goto out;
+ status = encode_restorefh(&xdr);
+ if (status)
+ goto out;
+ status = encode_getfattr(&xdr, args->bitmask);
out:
return status;
}
@@ -1464,6 +1538,9 @@ static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct n
};
int status;
+ status = nfs_wait_on_sequence(args->seqid, req->rq_task);
+ if (status != 0)
+ goto out;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
status = encode_putfh(&xdr, args->fh);
@@ -1485,6 +1562,9 @@ static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nf
};
int status;
+ status = nfs_wait_on_sequence(args->seqid, req->rq_task);
+ if (status != 0)
+ goto out;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
status = encode_putfh(&xdr, args->fh);
@@ -1502,7 +1582,7 @@ static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 3,
};
int status;
@@ -1512,6 +1592,9 @@ static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct
if (status)
goto out;
status = encode_open_downgrade(&xdr, args);
+ if (status != 0)
+ goto out;
+ status = encode_getfattr(&xdr, args->bitmask);
out:
return status;
}
@@ -1525,8 +1608,15 @@ static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_locka
struct compound_hdr hdr = {
.nops = 2,
};
+ struct nfs_lock_opargs *opargs = args->u.lock;
int status;
+ status = nfs_wait_on_sequence(opargs->lock_seqid, req->rq_task);
+ if (status != 0)
+ goto out;
+ /* Do we need to do an open_to_lock_owner? */
+ if (opargs->lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)
+ opargs->new_lock_owner = 0;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
status = encode_putfh(&xdr, args->fh);
@@ -1713,7 +1803,7 @@ static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writ
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 3,
};
int status;
@@ -1723,6 +1813,9 @@ static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writ
if (status)
goto out;
status = encode_write(&xdr, args);
+ if (status)
+ goto out;
+ status = encode_getfattr(&xdr, args->bitmask);
out:
return status;
}
@@ -1734,7 +1827,7 @@ static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_wri
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 3,
};
int status;
@@ -1744,6 +1837,9 @@ static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_wri
if (status)
goto out;
status = encode_commit(&xdr, args);
+ if (status)
+ goto out;
+ status = encode_getfattr(&xdr, args->bitmask);
out:
return status;
}
@@ -2670,8 +2766,7 @@ static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_re
goto xdr_error;
status = verify_attr_len(xdr, savep, attrlen);
xdr_error:
- if (status != 0)
- printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
+ dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
return status;
}
@@ -2704,8 +2799,7 @@ static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
status = verify_attr_len(xdr, savep, attrlen);
xdr_error:
- if (status != 0)
- printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
+ dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
return status;
}
@@ -2730,8 +2824,7 @@ static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf
status = verify_attr_len(xdr, savep, attrlen);
xdr_error:
- if (status != 0)
- printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
+ dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
return status;
}
@@ -2787,13 +2880,10 @@ static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, cons
goto xdr_error;
if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0)
goto xdr_error;
- if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) {
+ if ((status = verify_attr_len(xdr, savep, attrlen)) == 0)
fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4;
- fattr->timestamp = jiffies;
- }
xdr_error:
- if (status != 0)
- printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
+ dprintk("%s: xdr returned %d\n", __FUNCTION__, -status);
return status;
}
@@ -2826,8 +2916,7 @@ static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
status = verify_attr_len(xdr, savep, attrlen);
xdr_error:
- if (status != 0)
- printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
+ dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
return status;
}
@@ -2890,8 +2979,8 @@ static int decode_lock(struct xdr_stream *xdr, struct nfs_lockres *res)
status = decode_op_hdr(xdr, OP_LOCK);
if (status == 0) {
- READ_BUF(sizeof(nfs4_stateid));
- COPYMEM(&res->u.stateid, sizeof(res->u.stateid));
+ READ_BUF(sizeof(res->u.stateid.data));
+ COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
} else if (status == -NFS4ERR_DENIED)
return decode_lock_denied(xdr, &res->u.denied);
return status;
@@ -2913,8 +3002,8 @@ static int decode_locku(struct xdr_stream *xdr, struct nfs_lockres *res)
status = decode_op_hdr(xdr, OP_LOCKU);
if (status == 0) {
- READ_BUF(sizeof(nfs4_stateid));
- COPYMEM(&res->u.stateid, sizeof(res->u.stateid));
+ READ_BUF(sizeof(res->u.stateid.data));
+ COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
}
return status;
}
@@ -2994,7 +3083,7 @@ static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
p += bmlen;
return decode_delegation(xdr, res);
xdr_error:
- printk(KERN_NOTICE "%s: xdr error!\n", __FUNCTION__);
+ dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen);
return -EIO;
}
@@ -3208,6 +3297,12 @@ static int decode_renew(struct xdr_stream *xdr)
return decode_op_hdr(xdr, OP_RENEW);
}
+static int
+decode_restorefh(struct xdr_stream *xdr)
+{
+ return decode_op_hdr(xdr, OP_RESTOREFH);
+}
+
static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
size_t *acl_len)
{
@@ -3243,7 +3338,8 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
if (attrlen <= *acl_len)
xdr_read_pages(xdr, attrlen);
*acl_len = attrlen;
- }
+ } else
+ status = -EOPNOTSUPP;
out:
return status;
@@ -3352,6 +3448,9 @@ static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, stru
if (status)
goto out;
status = decode_open_downgrade(&xdr, res);
+ if (status != 0)
+ goto out;
+ decode_getfattr(&xdr, res->fattr, res->server);
out:
return status;
}
@@ -3424,7 +3523,7 @@ out:
/*
* Decode REMOVE response
*/
-static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_change_info *cinfo)
+static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_remove_res *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@@ -3433,8 +3532,11 @@ static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
goto out;
- if ((status = decode_putfh(&xdr)) == 0)
- status = decode_remove(&xdr, cinfo);
+ if ((status = decode_putfh(&xdr)) != 0)
+ goto out;
+ if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
+ goto out;
+ decode_getfattr(&xdr, res->dir_attr, res->server);
out:
return status;
}
@@ -3457,7 +3559,14 @@ static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_
goto out;
if ((status = decode_putfh(&xdr)) != 0)
goto out;
- status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo);
+ if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
+ goto out;
+ /* Current FH is target directory */
+ if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0)
+ goto out;
+ if ((status = decode_restorefh(&xdr)) != 0)
+ goto out;
+ decode_getfattr(&xdr, res->old_fattr, res->server);
out:
return status;
}
@@ -3465,7 +3574,7 @@ out:
/*
* Decode LINK response
*/
-static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_change_info *cinfo)
+static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_link_res *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@@ -3480,7 +3589,17 @@ static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_ch
goto out;
if ((status = decode_putfh(&xdr)) != 0)
goto out;
- status = decode_link(&xdr, cinfo);
+ if ((status = decode_link(&xdr, &res->cinfo)) != 0)
+ goto out;
+ /*
+ * Note order: OP_LINK leaves the directory as the current
+ * filehandle.
+ */
+ if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0)
+ goto out;
+ if ((status = decode_restorefh(&xdr)) != 0)
+ goto out;
+ decode_getfattr(&xdr, res->fattr, res->server);
out:
return status;
}
@@ -3499,13 +3618,17 @@ static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_
goto out;
if ((status = decode_putfh(&xdr)) != 0)
goto out;
+ if ((status = decode_savefh(&xdr)) != 0)
+ goto out;
if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
goto out;
if ((status = decode_getfh(&xdr, res->fh)) != 0)
goto out;
- status = decode_getfattr(&xdr, res->fattr, res->server);
- if (status == NFS4ERR_DELAY)
- status = 0;
+ if (decode_getfattr(&xdr, res->fattr, res->server) != 0)
+ goto out;
+ if ((status = decode_restorefh(&xdr)) != 0)
+ goto out;
+ decode_getfattr(&xdr, res->dir_fattr, res->server);
out:
return status;
}
@@ -3623,6 +3746,15 @@ static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_cl
if (status)
goto out;
status = decode_close(&xdr, res);
+ if (status != 0)
+ goto out;
+ /*
+ * Note: Server may do delete on close for this file
+ * in which case the getattr call will fail with
+ * an ESTALE error. Shouldn't be a problem,
+ * though, since fattr->valid will remain unset.
+ */
+ decode_getfattr(&xdr, res->fattr, res->server);
out:
return status;
}
@@ -3643,15 +3775,20 @@ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_ope
status = decode_putfh(&xdr);
if (status)
goto out;
+ status = decode_savefh(&xdr);
+ if (status)
+ goto out;
status = decode_open(&xdr, res);
if (status)
goto out;
status = decode_getfh(&xdr, &res->fh);
if (status)
goto out;
- status = decode_getfattr(&xdr, res->f_attr, res->server);
- if (status == NFS4ERR_DELAY)
- status = 0;
+ if (decode_getfattr(&xdr, res->f_attr, res->server) != 0)
+ goto out;
+ if ((status = decode_restorefh(&xdr)) != 0)
+ goto out;
+ decode_getfattr(&xdr, res->dir_attr, res->server);
out:
return status;
}
@@ -3869,6 +4006,9 @@ static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_wr
if (status)
goto out;
status = decode_write(&xdr, res);
+ if (status)
+ goto out;
+ decode_getfattr(&xdr, res->fattr, res->server);
if (!status)
status = res->count;
out:
@@ -3892,6 +4032,9 @@ static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_w
if (status)
goto out;
status = decode_commit(&xdr, res);
+ if (status)
+ goto out;
+ decode_getfattr(&xdr, res->fattr, res->server);
out:
return status;
}
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index be23c3fb9260..e1e3ca5d746b 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -61,7 +61,7 @@ nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
int status;
dprintk("%s: call getattr\n", __FUNCTION__);
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call(server->client_sys, NFSPROC_GETATTR, fhandle, fattr, 0);
dprintk("%s: reply getattr: %d\n", __FUNCTION__, status);
if (status)
@@ -93,7 +93,7 @@ nfs_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
int status;
dprintk("NFS call getattr\n");
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call(server->client, NFSPROC_GETATTR,
fhandle, fattr, 0);
dprintk("NFS reply getattr: %d\n", status);
@@ -112,7 +112,7 @@ nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
int status;
dprintk("NFS call setattr\n");
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call(NFS_CLIENT(inode), NFSPROC_SETATTR, &arg, fattr, 0);
if (status == 0)
nfs_setattr_update_inode(inode, sattr);
@@ -136,7 +136,7 @@ nfs_proc_lookup(struct inode *dir, struct qstr *name,
int status;
dprintk("NFS call lookup %s\n", name->name);
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call(NFS_CLIENT(dir), NFSPROC_LOOKUP, &arg, &res, 0);
dprintk("NFS reply lookup: %d\n", status);
return status;
@@ -174,7 +174,7 @@ static int nfs_proc_read(struct nfs_read_data *rdata)
dprintk("NFS call read %d @ %Ld\n", rdata->args.count,
(long long) rdata->args.offset);
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
if (status >= 0) {
nfs_refresh_inode(inode, fattr);
@@ -203,10 +203,10 @@ static int nfs_proc_write(struct nfs_write_data *wdata)
dprintk("NFS call write %d @ %Ld\n", wdata->args.count,
(long long) wdata->args.offset);
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
if (status >= 0) {
- nfs_refresh_inode(inode, fattr);
+ nfs_post_op_update_inode(inode, fattr);
wdata->res.count = wdata->args.count;
wdata->verf.committed = NFS_FILE_SYNC;
}
@@ -216,7 +216,7 @@ static int nfs_proc_write(struct nfs_write_data *wdata)
static int
nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
- int flags)
+ int flags, struct nameidata *nd)
{
struct nfs_fh fhandle;
struct nfs_fattr fattr;
@@ -232,7 +232,7 @@ nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
};
int status;
- fattr.valid = 0;
+ nfs_fattr_init(&fattr);
dprintk("NFS call create %s\n", dentry->d_name.name);
status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
if (status == 0)
@@ -273,12 +273,13 @@ nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
sattr->ia_size = new_encode_dev(rdev);/* get out your barf bag */
}
- fattr.valid = 0;
+ nfs_fattr_init(&fattr);
status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
+ nfs_mark_for_revalidate(dir);
if (status == -EINVAL && S_ISFIFO(mode)) {
sattr->ia_mode = mode;
- fattr.valid = 0;
+ nfs_fattr_init(&fattr);
status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
}
if (status == 0)
@@ -305,6 +306,7 @@ nfs_proc_remove(struct inode *dir, struct qstr *name)
dprintk("NFS call remove %s\n", name->name);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+ nfs_mark_for_revalidate(dir);
dprintk("NFS reply remove: %d\n", status);
return status;
@@ -331,8 +333,10 @@ nfs_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
{
struct rpc_message *msg = &task->tk_msg;
- if (msg->rpc_argp)
+ if (msg->rpc_argp) {
+ nfs_mark_for_revalidate(dir->d_inode);
kfree(msg->rpc_argp);
+ }
return 0;
}
@@ -352,6 +356,8 @@ nfs_proc_rename(struct inode *old_dir, struct qstr *old_name,
dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name);
status = rpc_call(NFS_CLIENT(old_dir), NFSPROC_RENAME, &arg, NULL, 0);
+ nfs_mark_for_revalidate(old_dir);
+ nfs_mark_for_revalidate(new_dir);
dprintk("NFS reply rename: %d\n", status);
return status;
}
@@ -369,6 +375,8 @@ nfs_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
dprintk("NFS call link %s\n", name->name);
status = rpc_call(NFS_CLIENT(inode), NFSPROC_LINK, &arg, NULL, 0);
+ nfs_mark_for_revalidate(inode);
+ nfs_mark_for_revalidate(dir);
dprintk("NFS reply link: %d\n", status);
return status;
}
@@ -391,9 +399,10 @@ nfs_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path,
if (path->len > NFS2_MAXPATHLEN)
return -ENAMETOOLONG;
dprintk("NFS call symlink %s -> %s\n", name->name, path->name);
- fattr->valid = 0;
+ nfs_fattr_init(fattr);
fhandle->size = 0;
status = rpc_call(NFS_CLIENT(dir), NFSPROC_SYMLINK, &arg, NULL, 0);
+ nfs_mark_for_revalidate(dir);
dprintk("NFS reply symlink: %d\n", status);
return status;
}
@@ -416,8 +425,9 @@ nfs_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
int status;
dprintk("NFS call mkdir %s\n", dentry->d_name.name);
- fattr.valid = 0;
+ nfs_fattr_init(&fattr);
status = rpc_call(NFS_CLIENT(dir), NFSPROC_MKDIR, &arg, &res, 0);
+ nfs_mark_for_revalidate(dir);
if (status == 0)
status = nfs_instantiate(dentry, &fhandle, &fattr);
dprintk("NFS reply mkdir: %d\n", status);
@@ -436,6 +446,7 @@ nfs_proc_rmdir(struct inode *dir, struct qstr *name)
dprintk("NFS call rmdir %s\n", name->name);
status = rpc_call(NFS_CLIENT(dir), NFSPROC_RMDIR, &arg, NULL, 0);
+ nfs_mark_for_revalidate(dir);
dprintk("NFS reply rmdir: %d\n", status);
return status;
}
@@ -484,7 +495,7 @@ nfs_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
int status;
dprintk("NFS call statfs\n");
- stat->fattr->valid = 0;
+ nfs_fattr_init(stat->fattr);
status = rpc_call(server->client, NFSPROC_STATFS, fhandle, &fsinfo, 0);
dprintk("NFS reply statfs: %d\n", status);
if (status)
@@ -507,7 +518,7 @@ nfs_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
int status;
dprintk("NFS call fsinfo\n");
- info->fattr->valid = 0;
+ nfs_fattr_init(info->fattr);
status = rpc_call(server->client, NFSPROC_STATFS, fhandle, &fsinfo, 0);
dprintk("NFS reply fsinfo: %d\n", status);
if (status)
@@ -579,7 +590,7 @@ nfs_write_done(struct rpc_task *task)
struct nfs_write_data *data = (struct nfs_write_data *) task->tk_calldata;
if (task->tk_status >= 0)
- nfs_refresh_inode(data->inode, data->res.fattr);
+ nfs_post_op_update_inode(data->inode, data->res.fattr);
nfs_writeback_done(task);
}
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 6ceb1d471f20..5f20eafba8ec 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -184,14 +184,13 @@ static void nfs_readpage_release(struct nfs_page *req)
{
unlock_page(req->wb_page);
- nfs_clear_request(req);
- nfs_release_request(req);
-
dprintk("NFS: read done (%s/%Ld %d@%Ld)\n",
req->wb_context->dentry->d_inode->i_sb->s_id,
(long long)NFS_FILEID(req->wb_context->dentry->d_inode),
req->wb_bytes,
(long long)req_offset(req));
+ nfs_clear_request(req);
+ nfs_release_request(req);
}
/*
@@ -216,6 +215,7 @@ static void nfs_read_rpcsetup(struct nfs_page *req, struct nfs_read_data *data,
data->res.fattr = &data->fattr;
data->res.count = count;
data->res.eof = 0;
+ nfs_fattr_init(&data->fattr);
NFS_PROTO(inode)->read_setup(data);
@@ -507,7 +507,7 @@ int nfs_readpage(struct file *file, struct page *page)
goto out_error;
if (file == NULL) {
- ctx = nfs_find_open_context(inode, FMODE_READ);
+ ctx = nfs_find_open_context(inode, NULL, FMODE_READ);
if (ctx == NULL)
return -EBADF;
} else
@@ -576,7 +576,7 @@ int nfs_readpages(struct file *filp, struct address_space *mapping,
nr_pages);
if (filp == NULL) {
- desc.ctx = nfs_find_open_context(inode, FMODE_READ);
+ desc.ctx = nfs_find_open_context(inode, NULL, FMODE_READ);
if (desc.ctx == NULL)
return -EBADF;
} else
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index f732541a3332..d639d172d568 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -52,8 +52,7 @@ nfs_put_unlinkdata(struct nfs_unlinkdata *data)
{
if (--data->count == 0) {
nfs_detach_unlinkdata(data);
- if (data->name.name != NULL)
- kfree(data->name.name);
+ kfree(data->name.name);
kfree(data);
}
}
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 5130eda231d7..3107908e5f3f 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -189,6 +189,7 @@ static int nfs_writepage_sync(struct nfs_open_context *ctx, struct inode *inode,
(long long)NFS_FILEID(inode),
count, (long long)(page_offset(page) + offset));
+ set_page_writeback(page);
nfs_begin_data_update(inode);
do {
if (count < wsize)
@@ -221,6 +222,7 @@ static int nfs_writepage_sync(struct nfs_open_context *ctx, struct inode *inode,
io_error:
nfs_end_data_update(inode);
+ end_page_writeback(page);
nfs_writedata_free(wdata);
return written ? written : result;
}
@@ -294,7 +296,7 @@ int nfs_writepage(struct page *page, struct writeback_control *wbc)
if (page->index >= end_index+1 || !offset)
goto out;
do_it:
- ctx = nfs_find_open_context(inode, FMODE_WRITE);
+ ctx = nfs_find_open_context(inode, NULL, FMODE_WRITE);
if (ctx == NULL) {
err = -EBADF;
goto out;
@@ -734,14 +736,14 @@ int nfs_updatepage(struct file *file, struct page *page,
unsigned int offset, unsigned int count)
{
struct nfs_open_context *ctx = (struct nfs_open_context *)file->private_data;
- struct dentry *dentry = file->f_dentry;
struct inode *inode = page->mapping->host;
struct nfs_page *req;
int status = 0;
dprintk("NFS: nfs_updatepage(%s/%s %d@%Ld)\n",
- dentry->d_parent->d_name.name, dentry->d_name.name,
- count, (long long)(page_offset(page) +offset));
+ file->f_dentry->d_parent->d_name.name,
+ file->f_dentry->d_name.name, count,
+ (long long)(page_offset(page) +offset));
if (IS_SYNC(inode)) {
status = nfs_writepage_sync(ctx, inode, page, offset, count, 0);
@@ -850,7 +852,6 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
unsigned int count, unsigned int offset,
int how)
{
- struct rpc_task *task = &data->task;
struct inode *inode;
/* Set up the RPC argument and reply structs
@@ -870,6 +871,7 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
data->res.fattr = &data->fattr;
data->res.count = count;
data->res.verf = &data->verf;
+ nfs_fattr_init(&data->fattr);
NFS_PROTO(inode)->write_setup(data, how);
@@ -880,7 +882,7 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
data->task.tk_release = nfs_writedata_release;
dprintk("NFS: %4d initiated write call (req %s/%Ld, %u bytes @ offset %Lu)\n",
- task->tk_pid,
+ data->task.tk_pid,
inode->i_sb->s_id,
(long long)NFS_FILEID(inode),
count,
@@ -929,7 +931,7 @@ static int nfs_flush_multi(struct list_head *head, struct inode *inode, int how)
atomic_set(&req->wb_complete, requests);
ClearPageError(page);
- SetPageWriteback(page);
+ set_page_writeback(page);
offset = 0;
nbytes = req->wb_bytes;
do {
@@ -992,7 +994,7 @@ static int nfs_flush_one(struct list_head *head, struct inode *inode, int how)
nfs_list_remove_request(req);
nfs_list_add_request(req, &data->pages);
ClearPageError(req->wb_page);
- SetPageWriteback(req->wb_page);
+ set_page_writeback(req->wb_page);
*pages++ = req->wb_page;
count += req->wb_bytes;
}
@@ -1216,7 +1218,6 @@ static void nfs_commit_release(struct rpc_task *task)
static void nfs_commit_rpcsetup(struct list_head *head,
struct nfs_write_data *data, int how)
{
- struct rpc_task *task = &data->task;
struct nfs_page *first;
struct inode *inode;
@@ -1237,6 +1238,7 @@ static void nfs_commit_rpcsetup(struct list_head *head,
data->res.count = 0;
data->res.fattr = &data->fattr;
data->res.verf = &data->verf;
+ nfs_fattr_init(&data->fattr);
NFS_PROTO(inode)->commit_setup(data, how);
@@ -1246,7 +1248,7 @@ static void nfs_commit_rpcsetup(struct list_head *head,
/* Release requests */
data->task.tk_release = nfs_commit_release;
- dprintk("NFS: %4d initiated commit call\n", task->tk_pid);
+ dprintk("NFS: %4d initiated commit call\n", data->task.tk_pid);
}
/*
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-03 08:18:40 +0300