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-rw-r--r--fs/9p/acl.c1
-rw-r--r--fs/9p/acl.h17
-rw-r--r--fs/9p/cache.c4
-rw-r--r--fs/9p/v9fs.c4
-rw-r--r--fs/9p/v9fs_vfs.h11
-rw-r--r--fs/9p/vfs_addr.c6
-rw-r--r--fs/9p/vfs_dentry.c2
-rw-r--r--fs/9p/vfs_file.c1
-rw-r--r--fs/9p/vfs_inode.c14
-rw-r--r--fs/9p/vfs_inode_dotl.c9
-rw-r--r--fs/9p/vfs_super.c7
-rw-r--r--fs/9p/xattr.h19
-rw-r--r--include/net/9p/9p.h10
-rw-r--r--include/net/9p/client.h22
-rw-r--r--include/net/9p/transport.h18
-rw-r--r--net/9p/client.c432
-rw-r--r--net/9p/error.c2
-rw-r--r--net/9p/mod.c9
-rw-r--r--net/9p/protocol.c36
-rw-r--r--net/9p/protocol.h2
-rw-r--r--net/9p/trans_common.h2
21 files changed, 323 insertions, 305 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index d2ce7b7be93f..4dac4a0dc5f4 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -115,6 +115,7 @@ static int v9fs_set_acl(struct p9_fid *fid, int type, struct posix_acl *acl)
char *name;
size_t size;
void *buffer;
+
if (!acl)
return 0;
diff --git a/fs/9p/acl.h b/fs/9p/acl.h
index cc741945c160..ce5175d463dd 100644
--- a/fs/9p/acl.h
+++ b/fs/9p/acl.h
@@ -7,14 +7,15 @@
#define FS_9P_ACL_H
#ifdef CONFIG_9P_FS_POSIX_ACL
-extern int v9fs_get_acl(struct inode *, struct p9_fid *);
-extern struct posix_acl *v9fs_iop_get_acl(struct inode *inode, int type, bool rcu);
-extern int v9fs_acl_chmod(struct inode *, struct p9_fid *);
-extern int v9fs_set_create_acl(struct inode *, struct p9_fid *,
- struct posix_acl *, struct posix_acl *);
-extern int v9fs_acl_mode(struct inode *dir, umode_t *modep,
- struct posix_acl **dpacl, struct posix_acl **pacl);
-extern void v9fs_put_acl(struct posix_acl *dacl, struct posix_acl *acl);
+int v9fs_get_acl(struct inode *inode, struct p9_fid *fid);
+struct posix_acl *v9fs_iop_get_acl(struct inode *inode, int type,
+ bool rcu);
+int v9fs_acl_chmod(struct inode *inode, struct p9_fid *fid);
+int v9fs_set_create_acl(struct inode *inode, struct p9_fid *fid,
+ struct posix_acl *dacl, struct posix_acl *acl);
+int v9fs_acl_mode(struct inode *dir, umode_t *modep,
+ struct posix_acl **dpacl, struct posix_acl **pacl);
+void v9fs_put_acl(struct posix_acl *dacl, struct posix_acl *acl);
#else
#define v9fs_iop_get_acl NULL
static inline int v9fs_get_acl(struct inode *inode, struct p9_fid *fid)
diff --git a/fs/9p/cache.c b/fs/9p/cache.c
index 077f0a40aa01..f2ba131cede1 100644
--- a/fs/9p/cache.c
+++ b/fs/9p/cache.c
@@ -19,8 +19,8 @@
#define CACHETAG_LEN 11
struct fscache_netfs v9fs_cache_netfs = {
- .name = "9p",
- .version = 0,
+ .name = "9p",
+ .version = 0,
};
/*
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 457d9ff584ec..e32dd5f7721b 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -188,8 +188,10 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
while ((p = strsep(&options, ",")) != NULL) {
int token, r;
+
if (!*p)
continue;
+
token = match_token(p, tokens, args);
switch (token) {
case Opt_debug:
@@ -659,6 +661,7 @@ static void v9fs_destroy_inode_cache(void)
static int v9fs_cache_register(void)
{
int ret;
+
ret = v9fs_init_inode_cache();
if (ret < 0)
return ret;
@@ -686,6 +689,7 @@ static void v9fs_cache_unregister(void)
static int __init init_v9fs(void)
{
int err;
+
pr_info("Installing v9fs 9p2000 file system support\n");
/* TODO: Setup list of registered trasnport modules */
diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index d44ade76966a..bc417da7e9c1 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -44,9 +44,10 @@ extern struct kmem_cache *v9fs_inode_cache;
struct inode *v9fs_alloc_inode(struct super_block *sb);
void v9fs_free_inode(struct inode *inode);
-struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t);
+struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode,
+ dev_t rdev);
int v9fs_init_inode(struct v9fs_session_info *v9ses,
- struct inode *inode, umode_t mode, dev_t);
+ struct inode *inode, umode_t mode, dev_t rdev);
void v9fs_evict_inode(struct inode *inode);
ino_t v9fs_qid2ino(struct p9_qid *qid);
void v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
@@ -59,8 +60,8 @@ void v9fs_inode2stat(struct inode *inode, struct p9_wstat *stat);
int v9fs_uflags2omode(int uflags, int extended);
void v9fs_blank_wstat(struct p9_wstat *wstat);
-int v9fs_vfs_setattr_dotl(struct user_namespace *, struct dentry *,
- struct iattr *);
+int v9fs_vfs_setattr_dotl(struct user_namespace *mnt_userns,
+ struct dentry *dentry, struct iattr *iattr);
int v9fs_file_fsync_dotl(struct file *filp, loff_t start, loff_t end,
int datasync);
int v9fs_refresh_inode(struct p9_fid *fid, struct inode *inode);
@@ -68,9 +69,9 @@ int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode);
static inline void v9fs_invalidate_inode_attr(struct inode *inode)
{
struct v9fs_inode *v9inode;
+
v9inode = V9FS_I(inode);
v9inode->cache_validity |= V9FS_INO_INVALID_ATTR;
- return;
}
int v9fs_open_to_dotl_flags(int flags);
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index fc8feb4f320e..adafdf86f42f 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -247,11 +247,13 @@ v9fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
loff_t pos = iocb->ki_pos;
ssize_t n;
int err = 0;
+
if (iov_iter_rw(iter) == WRITE) {
n = p9_client_write(file->private_data, pos, iter, &err);
if (n) {
struct inode *inode = file_inode(file);
loff_t i_size = i_size_read(inode);
+
if (pos + n > i_size)
inode_add_bytes(inode, pos + n - i_size);
}
@@ -262,7 +264,7 @@ v9fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
}
static int v9fs_write_begin(struct file *filp, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned flags,
+ loff_t pos, unsigned int len, unsigned int flags,
struct page **pagep, void **fsdata)
{
int retval;
@@ -287,7 +289,7 @@ static int v9fs_write_begin(struct file *filp, struct address_space *mapping,
}
static int v9fs_write_end(struct file *filp, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
+ loff_t pos, unsigned int len, unsigned int copied,
struct page *page, void *fsdata)
{
loff_t last_pos = pos + copied;
diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c
index a0b660e47e46..1c609e99d280 100644
--- a/fs/9p/vfs_dentry.c
+++ b/fs/9p/vfs_dentry.c
@@ -50,6 +50,7 @@ static int v9fs_cached_dentry_delete(const struct dentry *dentry)
static void v9fs_dentry_release(struct dentry *dentry)
{
struct hlist_node *p, *n;
+
p9_debug(P9_DEBUG_VFS, " dentry: %pd (%p)\n",
dentry, dentry);
hlist_for_each_safe(p, n, (struct hlist_head *)&dentry->d_fsdata)
@@ -74,6 +75,7 @@ static int v9fs_lookup_revalidate(struct dentry *dentry, unsigned int flags)
if (v9inode->cache_validity & V9FS_INO_INVALID_ATTR) {
int retval;
struct v9fs_session_info *v9ses;
+
fid = v9fs_fid_lookup(dentry);
if (IS_ERR(fid))
return PTR_ERR(fid);
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 07aad7d6a09a..4244d48398ef 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -406,6 +406,7 @@ v9fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
struct inode *inode = file_inode(file);
loff_t i_size;
unsigned long pg_start, pg_end;
+
pg_start = origin >> PAGE_SHIFT;
pg_end = (origin + retval - 1) >> PAGE_SHIFT;
if (inode->i_mapping && inode->i_mapping->nrpages)
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index d50e19c782cd..328c338ff304 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -47,6 +47,7 @@ static const struct inode_operations v9fs_symlink_inode_operations;
static u32 unixmode2p9mode(struct v9fs_session_info *v9ses, umode_t mode)
{
int res;
+
res = mode & 0777;
if (S_ISDIR(mode))
res |= P9_DMDIR;
@@ -226,6 +227,7 @@ v9fs_blank_wstat(struct p9_wstat *wstat)
struct inode *v9fs_alloc_inode(struct super_block *sb)
{
struct v9fs_inode *v9inode;
+
v9inode = kmem_cache_alloc(v9fs_inode_cache, GFP_KERNEL);
if (!v9inode)
return NULL;
@@ -254,7 +256,7 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,
{
int err = 0;
- inode_init_owner(&init_user_ns,inode, NULL, mode);
+ inode_init_owner(&init_user_ns, inode, NULL, mode);
inode->i_blocks = 0;
inode->i_rdev = rdev;
inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode);
@@ -443,7 +445,7 @@ static struct inode *v9fs_qid_iget(struct super_block *sb,
unsigned long i_ino;
struct inode *inode;
struct v9fs_session_info *v9ses = sb->s_fs_info;
- int (*test)(struct inode *, void *);
+ int (*test)(struct inode *inode, void *data);
if (new)
test = v9fs_test_new_inode;
@@ -502,8 +504,10 @@ v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
static int v9fs_at_to_dotl_flags(int flags)
{
int rflags = 0;
+
if (flags & AT_REMOVEDIR)
rflags |= P9_DOTL_AT_REMOVEDIR;
+
return rflags;
}
@@ -800,7 +804,7 @@ struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
static int
v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
- struct file *file, unsigned flags, umode_t mode)
+ struct file *file, unsigned int flags, umode_t mode)
{
int err;
u32 perm;
@@ -1087,7 +1091,7 @@ static int v9fs_vfs_setattr(struct user_namespace *mnt_userns,
fid = v9fs_fid_lookup(dentry);
use_dentry = 1;
}
- if(IS_ERR(fid))
+ if (IS_ERR(fid))
return PTR_ERR(fid);
v9fs_blank_wstat(&wstat);
@@ -1367,7 +1371,7 @@ v9fs_vfs_mknod(struct user_namespace *mnt_userns, struct inode *dir,
char name[2 + U32_MAX_DIGITS + 1 + U32_MAX_DIGITS + 1];
u32 perm;
- p9_debug(P9_DEBUG_VFS, " %lu,%pd mode: %hx MAJOR: %u MINOR: %u\n",
+ p9_debug(P9_DEBUG_VFS, " %lu,%pd mode: %x MAJOR: %u MINOR: %u\n",
dir->i_ino, dentry, mode,
MAJOR(rdev), MINOR(rdev));
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 272dddcbcde6..7dee89ba32e7 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -105,7 +105,7 @@ static struct inode *v9fs_qid_iget_dotl(struct super_block *sb,
unsigned long i_ino;
struct inode *inode;
struct v9fs_session_info *v9ses = sb->s_fs_info;
- int (*test)(struct inode *, void *);
+ int (*test)(struct inode *inode, void *data);
if (new)
test = v9fs_test_new_inode_dotl;
@@ -228,7 +228,7 @@ v9fs_vfs_create_dotl(struct user_namespace *mnt_userns, struct inode *dir,
static int
v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
- struct file *file, unsigned flags, umode_t omode)
+ struct file *file, unsigned int flags, umode_t omode)
{
int err = 0;
kgid_t gid;
@@ -259,7 +259,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
v9ses = v9fs_inode2v9ses(dir);
name = dentry->d_name.name;
- p9_debug(P9_DEBUG_VFS, "name:%s flags:0x%x mode:0x%hx\n",
+ p9_debug(P9_DEBUG_VFS, "name:%s flags:0x%x mode:0x%x\n",
name, flags, omode);
dfid = v9fs_parent_fid(dentry);
@@ -805,6 +805,7 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
/* Get the latest stat info from server. */
struct p9_fid *fid;
+
fid = v9fs_fid_lookup(old_dentry);
if (IS_ERR(fid))
return PTR_ERR(fid);
@@ -841,7 +842,7 @@ v9fs_vfs_mknod_dotl(struct user_namespace *mnt_userns, struct inode *dir,
struct p9_qid qid;
struct posix_acl *dacl = NULL, *pacl = NULL;
- p9_debug(P9_DEBUG_VFS, " %lu,%pd mode: %hx MAJOR: %u MINOR: %u\n",
+ p9_debug(P9_DEBUG_VFS, " %lu,%pd mode: %x MAJOR: %u MINOR: %u\n",
dir->i_ino, dentry, omode,
MAJOR(rdev), MINOR(rdev));
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index b0632f4e337f..b739e02f5ef7 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -112,7 +112,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
struct inode *inode = NULL;
struct dentry *root = NULL;
struct v9fs_session_info *v9ses = NULL;
- umode_t mode = S_IRWXUGO | S_ISVTX;
+ umode_t mode = 0777 | S_ISVTX;
struct p9_fid *fid;
int retval = 0;
@@ -156,6 +156,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
sb->s_root = root;
if (v9fs_proto_dotl(v9ses)) {
struct p9_stat_dotl *st = NULL;
+
st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
if (IS_ERR(st)) {
retval = PTR_ERR(st);
@@ -166,6 +167,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
kfree(st);
} else {
struct p9_wstat *st = NULL;
+
st = p9_client_stat(fid);
if (IS_ERR(st)) {
retval = PTR_ERR(st);
@@ -274,12 +276,13 @@ done:
static int v9fs_drop_inode(struct inode *inode)
{
struct v9fs_session_info *v9ses;
+
v9ses = v9fs_inode2v9ses(inode);
if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
return generic_drop_inode(inode);
/*
* in case of non cached mode always drop the
- * the inode because we want the inode attribute
+ * inode because we want the inode attribute
* to always match that on the server.
*/
return 1;
diff --git a/fs/9p/xattr.h b/fs/9p/xattr.h
index e097f0f112d6..3e11fc3331eb 100644
--- a/fs/9p/xattr.h
+++ b/fs/9p/xattr.h
@@ -14,13 +14,14 @@ extern const struct xattr_handler *v9fs_xattr_handlers[];
extern const struct xattr_handler v9fs_xattr_acl_access_handler;
extern const struct xattr_handler v9fs_xattr_acl_default_handler;
-extern ssize_t v9fs_fid_xattr_get(struct p9_fid *, const char *,
- void *, size_t);
-extern ssize_t v9fs_xattr_get(struct dentry *, const char *,
- void *, size_t);
-extern int v9fs_fid_xattr_set(struct p9_fid *, const char *,
- const void *, size_t, int);
-extern int v9fs_xattr_set(struct dentry *, const char *,
- const void *, size_t, int);
-extern ssize_t v9fs_listxattr(struct dentry *, char *, size_t);
+ssize_t v9fs_fid_xattr_get(struct p9_fid *fid, const char *name,
+ void *buffer, size_t buffer_size);
+ssize_t v9fs_xattr_get(struct dentry *dentry, const char *name,
+ void *buffer, size_t buffer_size);
+int v9fs_fid_xattr_set(struct p9_fid *fid, const char *name,
+ const void *value, size_t value_len, int flags);
+int v9fs_xattr_set(struct dentry *dentry, const char *name,
+ const void *value, size_t value_len, int flags);
+ssize_t v9fs_listxattr(struct dentry *dentry, char *buffer,
+ size_t buffer_size);
#endif /* FS_9P_XATTR_H */
diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
index ff2b7f408966..9c6ec78e47a5 100644
--- a/include/net/9p/9p.h
+++ b/include/net/9p/9p.h
@@ -30,13 +30,13 @@
*/
enum p9_debug_flags {
- P9_DEBUG_ERROR = (1<<0),
- P9_DEBUG_9P = (1<<2),
+ P9_DEBUG_ERROR = (1<<0),
+ P9_DEBUG_9P = (1<<2),
P9_DEBUG_VFS = (1<<3),
P9_DEBUG_CONV = (1<<4),
P9_DEBUG_MUX = (1<<5),
P9_DEBUG_TRANS = (1<<6),
- P9_DEBUG_SLABS = (1<<7),
+ P9_DEBUG_SLABS = (1<<7),
P9_DEBUG_FCALL = (1<<8),
P9_DEBUG_FID = (1<<9),
P9_DEBUG_PKT = (1<<10),
@@ -315,8 +315,8 @@ enum p9_qid_t {
};
/* 9P Magic Numbers */
-#define P9_NOTAG (u16)(~0)
-#define P9_NOFID (u32)(~0)
+#define P9_NOTAG ((u16)(~0))
+#define P9_NOFID ((u32)(~0))
#define P9_MAXWELEM 16
/* Minimal header size: size[4] type[1] tag[2] */
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index 2675b8413b5e..ec1d1706f43c 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -21,7 +21,7 @@
* @p9_proto_2000L: 9P2000.L extension
*/
-enum p9_proto_versions{
+enum p9_proto_versions {
p9_proto_legacy,
p9_proto_2000u,
p9_proto_2000L,
@@ -217,13 +217,13 @@ struct p9_stat_dotl *p9_client_getattr_dotl(struct p9_fid *fid,
u64 request_mask);
int p9_client_mknod_dotl(struct p9_fid *oldfid, const char *name, int mode,
- dev_t rdev, kgid_t gid, struct p9_qid *);
+ dev_t rdev, kgid_t gid, struct p9_qid *qid);
int p9_client_mkdir_dotl(struct p9_fid *fid, const char *name, int mode,
- kgid_t gid, struct p9_qid *);
+ kgid_t gid, struct p9_qid *qid);
int p9_client_lock_dotl(struct p9_fid *fid, struct p9_flock *flock, u8 *status);
int p9_client_getlock_dotl(struct p9_fid *fid, struct p9_getlock *fl);
void p9_fcall_fini(struct p9_fcall *fc);
-struct p9_req_t *p9_tag_lookup(struct p9_client *, u16);
+struct p9_req_t *p9_tag_lookup(struct p9_client *c, u16 tag);
static inline void p9_req_get(struct p9_req_t *r)
{
@@ -239,14 +239,18 @@ int p9_req_put(struct p9_req_t *r);
void p9_client_cb(struct p9_client *c, struct p9_req_t *req, int status);
-int p9_parse_header(struct p9_fcall *, int32_t *, int8_t *, int16_t *, int);
-int p9stat_read(struct p9_client *, char *, int, struct p9_wstat *);
-void p9stat_free(struct p9_wstat *);
+int p9_parse_header(struct p9_fcall *pdu, int32_t *size, int8_t *type,
+ int16_t *tag, int rewind);
+int p9stat_read(struct p9_client *clnt, char *buf, int len,
+ struct p9_wstat *st);
+void p9stat_free(struct p9_wstat *stbuf);
int p9_is_proto_dotu(struct p9_client *clnt);
int p9_is_proto_dotl(struct p9_client *clnt);
-struct p9_fid *p9_client_xattrwalk(struct p9_fid *, const char *, u64 *);
-int p9_client_xattrcreate(struct p9_fid *, const char *, u64, int);
+struct p9_fid *p9_client_xattrwalk(struct p9_fid *file_fid,
+ const char *attr_name, u64 *attr_size);
+int p9_client_xattrcreate(struct p9_fid *fid, const char *name,
+ u64 attr_size, int flags);
int p9_client_readlink(struct p9_fid *fid, char **target);
int p9_client_init(void);
diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index 86845e965efe..15a4e6a9dbf7 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -40,14 +40,16 @@ struct p9_trans_module {
int maxsize; /* max message size of transport */
int def; /* this transport should be default */
struct module *owner;
- int (*create)(struct p9_client *, const char *, char *);
- void (*close) (struct p9_client *);
- int (*request) (struct p9_client *, struct p9_req_t *req);
- int (*cancel) (struct p9_client *, struct p9_req_t *req);
- int (*cancelled)(struct p9_client *, struct p9_req_t *req);
- int (*zc_request)(struct p9_client *, struct p9_req_t *,
- struct iov_iter *, struct iov_iter *, int , int, int);
- int (*show_options)(struct seq_file *, struct p9_client *);
+ int (*create)(struct p9_client *client,
+ const char *devname, char *args);
+ void (*close)(struct p9_client *client);
+ int (*request)(struct p9_client *client, struct p9_req_t *req);
+ int (*cancel)(struct p9_client *client, struct p9_req_t *req);
+ int (*cancelled)(struct p9_client *client, struct p9_req_t *req);
+ int (*zc_request)(struct p9_client *client, struct p9_req_t *req,
+ struct iov_iter *uidata, struct iov_iter *uodata,
+ int inlen, int outlen, int in_hdr_len);
+ int (*show_options)(struct seq_file *m, struct p9_client *client);
};
void v9fs_register_trans(struct p9_trans_module *m);
diff --git a/net/9p/client.c b/net/9p/client.c
index fc480a230efa..d062f1e5bfb0 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -30,10 +30,9 @@
#define DEFAULT_MSIZE (128 * 1024)
-/*
- * Client Option Parsing (code inspired by NFS code)
- * - a little lazy - parse all client options
- */
+/* Client Option Parsing (code inspired by NFS code)
+ * - a little lazy - parse all client options
+ */
enum {
Opt_msize,
@@ -87,20 +86,18 @@ int p9_show_client_options(struct seq_file *m, struct p9_client *clnt)
}
EXPORT_SYMBOL(p9_show_client_options);
-/*
- * Some error codes are taken directly from the server replies,
+/* Some error codes are taken directly from the server replies,
* make sure they are valid.
*/
static int safe_errno(int err)
{
- if ((err > 0) || (err < -MAX_ERRNO)) {
+ if (err > 0 || err < -MAX_ERRNO) {
p9_debug(P9_DEBUG_ERROR, "Invalid error code %d\n", err);
return -EPROTO;
}
return err;
}
-
/* Interpret mount option for protocol version */
static int get_protocol_version(char *s)
{
@@ -115,8 +112,9 @@ static int get_protocol_version(char *s)
} else if (!strcmp(s, "9p2000.L")) {
version = p9_proto_2000L;
p9_debug(P9_DEBUG_9P, "Protocol version: 9P2000.L\n");
- } else
+ } else {
pr_info("Unknown protocol version %s\n", s);
+ }
return version;
}
@@ -145,15 +143,13 @@ static int parse_opts(char *opts, struct p9_client *clnt)
return 0;
tmp_options = kstrdup(opts, GFP_KERNEL);
- if (!tmp_options) {
- p9_debug(P9_DEBUG_ERROR,
- "failed to allocate copy of option string\n");
+ if (!tmp_options)
return -ENOMEM;
- }
options = tmp_options;
while ((p = strsep(&options, ",")) != NULL) {
int token, r;
+
if (!*p)
continue;
token = match_token(p, tokens, args);
@@ -185,7 +181,7 @@ static int parse_opts(char *opts, struct p9_client *clnt)
v9fs_put_trans(clnt->trans_mod);
clnt->trans_mod = v9fs_get_trans_by_name(s);
- if (clnt->trans_mod == NULL) {
+ if (!clnt->trans_mod) {
pr_info("Could not find request transport: %s\n",
s);
ret = -EINVAL;
@@ -377,6 +373,7 @@ static int p9_tag_remove(struct p9_client *c, struct p9_req_t *r)
static void p9_req_free(struct kref *ref)
{
struct p9_req_t *r = container_of(ref, struct p9_req_t, refcount);
+
p9_fcall_fini(&r->tc);
p9_fcall_fini(&r->rc);
kmem_cache_free(p9_req_cache, r);
@@ -421,8 +418,7 @@ void p9_client_cb(struct p9_client *c, struct p9_req_t *req, int status)
{
p9_debug(P9_DEBUG_MUX, " tag %d\n", req->tc.tag);
- /*
- * This barrier is needed to make sure any change made to req before
+ /* This barrier is needed to make sure any change made to req before
* the status change is visible to another thread
*/
smp_wmb();
@@ -444,12 +440,12 @@ EXPORT_SYMBOL(p9_client_cb);
*/
int
-p9_parse_header(struct p9_fcall *pdu, int32_t *size, int8_t *type, int16_t *tag,
- int rewind)
+p9_parse_header(struct p9_fcall *pdu, int32_t *size, int8_t *type,
+ int16_t *tag, int rewind)
{
- int8_t r_type;
- int16_t r_tag;
- int32_t r_size;
+ s8 r_type;
+ s16 r_tag;
+ s32 r_size;
int offset = pdu->offset;
int err;
@@ -497,7 +493,7 @@ EXPORT_SYMBOL(p9_parse_header);
static int p9_check_errors(struct p9_client *c, struct p9_req_t *req)
{
- int8_t type;
+ s8 type;
int err;
int ecode;
@@ -508,8 +504,7 @@ static int p9_check_errors(struct p9_client *c, struct p9_req_t *req)
req->rc.size);
return -EIO;
}
- /*
- * dump the response from server
+ /* dump the response from server
* This should be after check errors which poplulate pdu_fcall.
*/
trace_9p_protocol_dump(c, &req->rc);
@@ -522,6 +517,7 @@ static int p9_check_errors(struct p9_client *c, struct p9_req_t *req)
if (!p9_is_proto_dotl(c)) {
char *ename;
+
err = p9pdu_readf(&req->rc, c->proto_version, "s?d",
&ename, &ecode);
if (err)
@@ -572,12 +568,11 @@ static int p9_check_zc_errors(struct p9_client *c, struct p9_req_t *req,
{
int err;
int ecode;
- int8_t type;
+ s8 type;
char *ename = NULL;
err = p9_parse_header(&req->rc, NULL, &type, NULL, 0);
- /*
- * dump the response from server
+ /* dump the response from server
* This should be after parse_header which poplulate pdu_fcall.
*/
trace_9p_protocol_dump(c, &req->rc);
@@ -605,7 +600,7 @@ static int p9_check_zc_errors(struct p9_client *c, struct p9_req_t *req,
if (len > inline_len) {
/* We have error in external buffer */
if (!copy_from_iter_full(ename + inline_len,
- len - inline_len, uidata)) {
+ len - inline_len, uidata)) {
err = -EFAULT;
goto out_err;
}
@@ -657,7 +652,7 @@ p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...);
static int p9_client_flush(struct p9_client *c, struct p9_req_t *oldreq)
{
struct p9_req_t *req;
- int16_t oldtag;
+ s16 oldtag;
int err;
err = p9_parse_header(&oldreq->tc, NULL, NULL, &oldtag, 1);
@@ -670,8 +665,7 @@ static int p9_client_flush(struct p9_client *c, struct p9_req_t *oldreq)
if (IS_ERR(req))
return PTR_ERR(req);
- /*
- * if we haven't received a response for oldreq,
+ /* if we haven't received a response for oldreq,
* remove it from the list
*/
if (oldreq->status == REQ_STATUS_SENT) {
@@ -697,7 +691,7 @@ static struct p9_req_t *p9_client_prepare_req(struct p9_client *c,
return ERR_PTR(-EIO);
/* if status is begin_disconnected we allow only clunk request */
- if ((c->status == BeginDisconnect) && (type != P9_TCLUNK))
+ if (c->status == BeginDisconnect && type != P9_TCLUNK)
return ERR_PTR(-EIO);
req = p9_tag_alloc(c, type, req_size);
@@ -745,8 +739,9 @@ p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...)
if (signal_pending(current)) {
sigpending = 1;
clear_thread_flag(TIF_SIGPENDING);
- } else
+ } else {
sigpending = 0;
+ }
err = c->trans_mod->request(c, req);
if (err < 0) {
@@ -760,14 +755,13 @@ again:
/* Wait for the response */
err = wait_event_killable(req->wq, req->status >= REQ_STATUS_RCVD);
- /*
- * Make sure our req is coherent with regard to updates in other
+ /* Make sure our req is coherent with regard to updates in other
* threads - echoes to wmb() in the callback
*/
smp_rmb();
- if ((err == -ERESTARTSYS) && (c->status == Connected)
- && (type == P9_TFLUSH)) {
+ if (err == -ERESTARTSYS && c->status == Connected &&
+ type == P9_TFLUSH) {
sigpending = 1;
clear_thread_flag(TIF_SIGPENDING);
goto again;
@@ -777,7 +771,7 @@ again:
p9_debug(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);
err = req->t_err;
}
- if ((err == -ERESTARTSYS) && (c->status == Connected)) {
+ if (err == -ERESTARTSYS && c->status == Connected) {
p9_debug(P9_DEBUG_MUX, "flushing\n");
sigpending = 1;
clear_thread_flag(TIF_SIGPENDING);
@@ -832,8 +826,7 @@ static struct p9_req_t *p9_client_zc_rpc(struct p9_client *c, int8_t type,
struct p9_req_t *req;
va_start(ap, fmt);
- /*
- * We allocate a inline protocol data of only 4k bytes.
+ /* We allocate a inline protocol data of only 4k bytes.
* The actual content is passed in zero-copy fashion.
*/
req = p9_client_prepare_req(c, type, P9_ZC_HDR_SZ, fmt, ap);
@@ -844,8 +837,9 @@ static struct p9_req_t *p9_client_zc_rpc(struct p9_client *c, int8_t type,
if (signal_pending(current)) {
sigpending = 1;
clear_thread_flag(TIF_SIGPENDING);
- } else
+ } else {
sigpending = 0;
+ }
err = c->trans_mod->zc_request(c, req, uidata, uodata,
inlen, olen, in_hdrlen);
@@ -859,7 +853,7 @@ static struct p9_req_t *p9_client_zc_rpc(struct p9_client *c, int8_t type,
p9_debug(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);
err = req->t_err;
}
- if ((err == -ERESTARTSYS) && (c->status == Connected)) {
+ if (err == -ERESTARTSYS && c->status == Connected) {
p9_debug(P9_DEBUG_MUX, "flushing\n");
sigpending = 1;
clear_thread_flag(TIF_SIGPENDING);
@@ -895,11 +889,11 @@ static struct p9_fid *p9_fid_create(struct p9_client *clnt)
struct p9_fid *fid;
p9_debug(P9_DEBUG_FID, "clnt %p\n", clnt);
- fid = kmalloc(sizeof(struct p9_fid), GFP_KERNEL);
+ fid = kmalloc(sizeof(*fid), GFP_KERNEL);
if (!fid)
return NULL;
- memset(&fid->qid, 0, sizeof(struct p9_qid));
+ memset(&fid->qid, 0, sizeof(fid->qid));
fid->mode = -1;
fid->uid = current_fsuid();
fid->clnt = clnt;
@@ -947,15 +941,15 @@ static int p9_client_version(struct p9_client *c)
switch (c->proto_version) {
case p9_proto_2000L:
req = p9_client_rpc(c, P9_TVERSION, "ds",
- c->msize, "9P2000.L");
+ c->msize, "9P2000.L");
break;
case p9_proto_2000u:
req = p9_client_rpc(c, P9_TVERSION, "ds",
- c->msize, "9P2000.u");
+ c->msize, "9P2000.u");
break;
case p9_proto_legacy:
req = p9_client_rpc(c, P9_TVERSION, "ds",
- c->msize, "9P2000");
+ c->msize, "9P2000");
break;
default:
return -EINVAL;
@@ -972,13 +966,13 @@ static int p9_client_version(struct p9_client *c)
}
p9_debug(P9_DEBUG_9P, "<<< RVERSION msize %d %s\n", msize, version);
- if (!strncmp(version, "9P2000.L", 8))
+ if (!strncmp(version, "9P2000.L", 8)) {
c->proto_version = p9_proto_2000L;
- else if (!strncmp(version, "9P2000.u", 8))
+ } else if (!strncmp(version, "9P2000.u", 8)) {
c->proto_version = p9_proto_2000u;
- else if (!strncmp(version, "9P2000", 6))
+ } else if (!strncmp(version, "9P2000", 6)) {
c->proto_version = p9_proto_legacy;
- else {
+ } else {
p9_debug(P9_DEBUG_ERROR,
"server returned an unknown version: %s\n", version);
err = -EREMOTEIO;
@@ -1008,7 +1002,7 @@ struct p9_client *p9_client_create(const char *dev_name, char *options)
char *client_id;
err = 0;
- clnt = kmalloc(sizeof(struct p9_client), GFP_KERNEL);
+ clnt = kmalloc(sizeof(*clnt), GFP_KERNEL);
if (!clnt)
return ERR_PTR(-ENOMEM);
@@ -1030,7 +1024,7 @@ struct p9_client *p9_client_create(const char *dev_name, char *options)
if (!clnt->trans_mod)
clnt->trans_mod = v9fs_get_default_trans();
- if (clnt->trans_mod == NULL) {
+ if (!clnt->trans_mod) {
err = -EPROTONOSUPPORT;
p9_debug(P9_DEBUG_ERROR,
"No transport defined or default transport\n");
@@ -1118,14 +1112,14 @@ void p9_client_begin_disconnect(struct p9_client *clnt)
EXPORT_SYMBOL(p9_client_begin_disconnect);
struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
- const char *uname, kuid_t n_uname, const char *aname)
+ const char *uname, kuid_t n_uname,
+ const char *aname)
{
int err = 0;
struct p9_req_t *req;
struct p9_fid *fid;
struct p9_qid qid;
-
p9_debug(P9_DEBUG_9P, ">>> TATTACH afid %d uname %s aname %s\n",
afid ? afid->fid : -1, uname, aname);
fid = p9_fid_create(clnt);
@@ -1136,7 +1130,7 @@ struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
fid->uid = n_uname;
req = p9_client_rpc(clnt, P9_TATTACH, "ddss?u", fid->fid,
- afid ? afid->fid : P9_NOFID, uname, aname, n_uname);
+ afid ? afid->fid : P9_NOFID, uname, aname, n_uname);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
@@ -1150,7 +1144,7 @@ struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
}
p9_debug(P9_DEBUG_9P, "<<< RATTACH qid %x.%llx.%x\n",
- qid.type, (unsigned long long)qid.path, qid.version);
+ qid.type, qid.path, qid.version);
memmove(&fid->qid, &qid, sizeof(struct p9_qid));
@@ -1165,14 +1159,14 @@ error:
EXPORT_SYMBOL(p9_client_attach);
struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
- const unsigned char * const *wnames, int clone)
+ const unsigned char * const *wnames, int clone)
{
int err;
struct p9_client *clnt;
struct p9_fid *fid;
struct p9_qid *wqids;
struct p9_req_t *req;
- uint16_t nwqids, count;
+ u16 nwqids, count;
err = 0;
wqids = NULL;
@@ -1185,14 +1179,14 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
}
fid->uid = oldfid->uid;
- } else
+ } else {
fid = oldfid;
-
+ }
p9_debug(P9_DEBUG_9P, ">>> TWALK fids %d,%d nwname %ud wname[0] %s\n",
oldfid->fid, fid->fid, nwname, wnames ? wnames[0] : NULL);
req = p9_client_rpc(clnt, P9_TWALK, "ddT", oldfid->fid, fid->fid,
- nwname, wnames);
+ nwname, wnames);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
@@ -1215,9 +1209,9 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
for (count = 0; count < nwqids; count++)
p9_debug(P9_DEBUG_9P, "<<< [%d] %x.%llx.%x\n",
- count, wqids[count].type,
- (unsigned long long)wqids[count].path,
- wqids[count].version);
+ count, wqids[count].type,
+ wqids[count].path,
+ wqids[count].version);
if (nwname)
memmove(&fid->qid, &wqids[nwqids - 1], sizeof(struct p9_qid));
@@ -1233,7 +1227,7 @@ clunk_fid:
fid = NULL;
error:
- if (fid && (fid != oldfid))
+ if (fid && fid != oldfid)
p9_fid_destroy(fid);
return ERR_PTR(err);
@@ -1250,7 +1244,7 @@ int p9_client_open(struct p9_fid *fid, int mode)
clnt = fid->clnt;
p9_debug(P9_DEBUG_9P, ">>> %s fid %d mode %d\n",
- p9_is_proto_dotl(clnt) ? "TLOPEN" : "TOPEN", fid->fid, mode);
+ p9_is_proto_dotl(clnt) ? "TLOPEN" : "TOPEN", fid->fid, mode);
err = 0;
if (fid->mode != -1)
@@ -1272,8 +1266,8 @@ int p9_client_open(struct p9_fid *fid, int mode)
}
p9_debug(P9_DEBUG_9P, "<<< %s qid %x.%llx.%x iounit %x\n",
- p9_is_proto_dotl(clnt) ? "RLOPEN" : "ROPEN", qid.type,
- (unsigned long long)qid.path, qid.version, iounit);
+ p9_is_proto_dotl(clnt) ? "RLOPEN" : "ROPEN", qid.type,
+ qid.path, qid.version, iounit);
memmove(&fid->qid, &qid, sizeof(struct p9_qid));
fid->mode = mode;
@@ -1286,8 +1280,8 @@ error:
}
EXPORT_SYMBOL(p9_client_open);
-int p9_client_create_dotl(struct p9_fid *ofid, const char *name, u32 flags, u32 mode,
- kgid_t gid, struct p9_qid *qid)
+int p9_client_create_dotl(struct p9_fid *ofid, const char *name, u32 flags,
+ u32 mode, kgid_t gid, struct p9_qid *qid)
{
int err = 0;
struct p9_client *clnt;
@@ -1295,16 +1289,16 @@ int p9_client_create_dotl(struct p9_fid *ofid, const char *name, u32 flags, u32
int iounit;
p9_debug(P9_DEBUG_9P,
- ">>> TLCREATE fid %d name %s flags %d mode %d gid %d\n",
- ofid->fid, name, flags, mode,
- from_kgid(&init_user_ns, gid));
+ ">>> TLCREATE fid %d name %s flags %d mode %d gid %d\n",
+ ofid->fid, name, flags, mode,
+ from_kgid(&init_user_ns, gid));
clnt = ofid->clnt;
if (ofid->mode != -1)
return -EINVAL;
req = p9_client_rpc(clnt, P9_TLCREATE, "dsddg", ofid->fid, name, flags,
- mode, gid);
+ mode, gid);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
@@ -1317,9 +1311,7 @@ int p9_client_create_dotl(struct p9_fid *ofid, const char *name, u32 flags, u32
}
p9_debug(P9_DEBUG_9P, "<<< RLCREATE qid %x.%llx.%x iounit %x\n",
- qid->type,
- (unsigned long long)qid->path,
- qid->version, iounit);
+ qid->type, qid->path, qid->version, iounit);
memmove(&ofid->qid, qid, sizeof(struct p9_qid));
ofid->mode = mode;
@@ -1342,7 +1334,7 @@ int p9_client_fcreate(struct p9_fid *fid, const char *name, u32 perm, int mode,
int iounit;
p9_debug(P9_DEBUG_9P, ">>> TCREATE fid %d name %s perm %d mode %d\n",
- fid->fid, name, perm, mode);
+ fid->fid, name, perm, mode);
err = 0;
clnt = fid->clnt;
@@ -1350,7 +1342,7 @@ int p9_client_fcreate(struct p9_fid *fid, const char *name, u32 perm, int mode,
return -EINVAL;
req = p9_client_rpc(clnt, P9_TCREATE, "dsdb?s", fid->fid, name, perm,
- mode, extension);
+ mode, extension);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
@@ -1363,9 +1355,7 @@ int p9_client_fcreate(struct p9_fid *fid, const char *name, u32 perm, int mode,
}
p9_debug(P9_DEBUG_9P, "<<< RCREATE qid %x.%llx.%x iounit %x\n",
- qid.type,
- (unsigned long long)qid.path,
- qid.version, iounit);
+ qid.type, qid.path, qid.version, iounit);
memmove(&fid->qid, &qid, sizeof(struct p9_qid));
fid->mode = mode;
@@ -1379,18 +1369,18 @@ error:
EXPORT_SYMBOL(p9_client_fcreate);
int p9_client_symlink(struct p9_fid *dfid, const char *name,
- const char *symtgt, kgid_t gid, struct p9_qid *qid)
+ const char *symtgt, kgid_t gid, struct p9_qid *qid)
{
int err = 0;
struct p9_client *clnt;
struct p9_req_t *req;
p9_debug(P9_DEBUG_9P, ">>> TSYMLINK dfid %d name %s symtgt %s\n",
- dfid->fid, name, symtgt);
+ dfid->fid, name, symtgt);
clnt = dfid->clnt;
req = p9_client_rpc(clnt, P9_TSYMLINK, "dssg", dfid->fid, name, symtgt,
- gid);
+ gid);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
@@ -1403,7 +1393,7 @@ int p9_client_symlink(struct p9_fid *dfid, const char *name,
}
p9_debug(P9_DEBUG_9P, "<<< RSYMLINK qid %x.%llx.%x\n",
- qid->type, (unsigned long long)qid->path, qid->version);
+ qid->type, qid->path, qid->version);
free_and_error:
p9_tag_remove(clnt, req);
@@ -1418,10 +1408,10 @@ int p9_client_link(struct p9_fid *dfid, struct p9_fid *oldfid, const char *newna
struct p9_req_t *req;
p9_debug(P9_DEBUG_9P, ">>> TLINK dfid %d oldfid %d newname %s\n",
- dfid->fid, oldfid->fid, newname);
+ dfid->fid, oldfid->fid, newname);
clnt = dfid->clnt;
req = p9_client_rpc(clnt, P9_TLINK, "dds", dfid->fid, oldfid->fid,
- newname);
+ newname);
if (IS_ERR(req))
return PTR_ERR(req);
@@ -1438,7 +1428,7 @@ int p9_client_fsync(struct p9_fid *fid, int datasync)
struct p9_req_t *req;
p9_debug(P9_DEBUG_9P, ">>> TFSYNC fid %d datasync:%d\n",
- fid->fid, datasync);
+ fid->fid, datasync);
err = 0;
clnt = fid->clnt;
@@ -1474,8 +1464,8 @@ int p9_client_clunk(struct p9_fid *fid)
return 0;
again:
- p9_debug(P9_DEBUG_9P, ">>> TCLUNK fid %d (try %d)\n", fid->fid,
- retries);
+ p9_debug(P9_DEBUG_9P, ">>> TCLUNK fid %d (try %d)\n",
+ fid->fid, retries);
err = 0;
clnt = fid->clnt;
@@ -1489,16 +1479,16 @@ again:
p9_tag_remove(clnt, req);
error:
- /*
- * Fid is not valid even after a failed clunk
+ /* Fid is not valid even after a failed clunk
* If interrupted, retry once then give up and
* leak fid until umount.
*/
if (err == -ERESTARTSYS) {
if (retries++ == 0)
goto again;
- } else
+ } else {
p9_fid_destroy(fid);
+ }
return err;
}
EXPORT_SYMBOL(p9_client_clunk);
@@ -1538,7 +1528,7 @@ int p9_client_unlinkat(struct p9_fid *dfid, const char *name, int flags)
struct p9_client *clnt;
p9_debug(P9_DEBUG_9P, ">>> TUNLINKAT fid %d %s %d\n",
- dfid->fid, name, flags);
+ dfid->fid, name, flags);
clnt = dfid->clnt;
req = p9_client_rpc(clnt, P9_TUNLINKAT, "dsd", dfid->fid, name, flags);
@@ -1584,8 +1574,8 @@ p9_client_read_once(struct p9_fid *fid, u64 offset, struct iov_iter *to,
char *dataptr;
*err = 0;
- p9_debug(P9_DEBUG_9P, ">>> TREAD fid %d offset %llu %d\n",
- fid->fid, (unsigned long long) offset, (int)iov_iter_count(to));
+ p9_debug(P9_DEBUG_9P, ">>> TREAD fid %d offset %llu %zu\n",
+ fid->fid, offset, iov_iter_count(to));
rsize = fid->iounit;
if (!rsize || rsize > clnt->msize - P9_IOHDRSZ)
@@ -1651,13 +1641,13 @@ p9_client_write(struct p9_fid *fid, u64 offset, struct iov_iter *from, int *err)
*err = 0;
p9_debug(P9_DEBUG_9P, ">>> TWRITE fid %d offset %llu count %zd\n",
- fid->fid, (unsigned long long) offset,
- iov_iter_count(from));
+ fid->fid, offset, iov_iter_count(from));
while (iov_iter_count(from)) {
int count = iov_iter_count(from);
int rsize = fid->iounit;
- if (!rsize || rsize > clnt->msize-P9_IOHDRSZ)
+
+ if (!rsize || rsize > clnt->msize - P9_IOHDRSZ)
rsize = clnt->msize - P9_IOHDRSZ;
if (count < rsize)
@@ -1670,7 +1660,7 @@ p9_client_write(struct p9_fid *fid, u64 offset, struct iov_iter *from, int *err)
fid->fid, offset, rsize);
} else {
req = p9_client_rpc(clnt, P9_TWRITE, "dqV", fid->fid,
- offset, rsize, from);
+ offset, rsize, from);
}
if (IS_ERR(req)) {
*err = PTR_ERR(req);
@@ -1703,12 +1693,13 @@ struct p9_wstat *p9_client_stat(struct p9_fid *fid)
{
int err;
struct p9_client *clnt;
- struct p9_wstat *ret = kmalloc(sizeof(struct p9_wstat), GFP_KERNEL);
+ struct p9_wstat *ret;
struct p9_req_t *req;
u16 ignored;
p9_debug(P9_DEBUG_9P, ">>> TSTAT fid %d\n", fid->fid);
+ ret = kmalloc(sizeof(*ret), GFP_KERNEL);
if (!ret)
return ERR_PTR(-ENOMEM);
@@ -1729,17 +1720,17 @@ struct p9_wstat *p9_client_stat(struct p9_fid *fid)
}
p9_debug(P9_DEBUG_9P,
- "<<< RSTAT sz=%x type=%x dev=%x qid=%x.%llx.%x\n"
- "<<< mode=%8.8x atime=%8.8x mtime=%8.8x length=%llx\n"
- "<<< name=%s uid=%s gid=%s muid=%s extension=(%s)\n"
- "<<< uid=%d gid=%d n_muid=%d\n",
- ret->size, ret->type, ret->dev, ret->qid.type,
- (unsigned long long)ret->qid.path, ret->qid.version, ret->mode,
- ret->atime, ret->mtime, (unsigned long long)ret->length,
- ret->name, ret->uid, ret->gid, ret->muid, ret->extension,
- from_kuid(&init_user_ns, ret->n_uid),
- from_kgid(&init_user_ns, ret->n_gid),
- from_kuid(&init_user_ns, ret->n_muid));
+ "<<< RSTAT sz=%x type=%x dev=%x qid=%x.%llx.%x\n"
+ "<<< mode=%8.8x atime=%8.8x mtime=%8.8x length=%llx\n"
+ "<<< name=%s uid=%s gid=%s muid=%s extension=(%s)\n"
+ "<<< uid=%d gid=%d n_muid=%d\n",
+ ret->size, ret->type, ret->dev, ret->qid.type, ret->qid.path,
+ ret->qid.version, ret->mode,
+ ret->atime, ret->mtime, ret->length,
+ ret->name, ret->uid, ret->gid, ret->muid, ret->extension,
+ from_kuid(&init_user_ns, ret->n_uid),
+ from_kgid(&init_user_ns, ret->n_gid),
+ from_kuid(&init_user_ns, ret->n_muid));
p9_tag_remove(clnt, req);
return ret;
@@ -1751,17 +1742,17 @@ error:
EXPORT_SYMBOL(p9_client_stat);
struct p9_stat_dotl *p9_client_getattr_dotl(struct p9_fid *fid,
- u64 request_mask)
+ u64 request_mask)
{
int err;
struct p9_client *clnt;
- struct p9_stat_dotl *ret = kmalloc(sizeof(struct p9_stat_dotl),
- GFP_KERNEL);
+ struct p9_stat_dotl *ret;
struct p9_req_t *req;
p9_debug(P9_DEBUG_9P, ">>> TGETATTR fid %d, request_mask %lld\n",
- fid->fid, request_mask);
+ fid->fid, request_mask);
+ ret = kmalloc(sizeof(*ret), GFP_KERNEL);
if (!ret)
return ERR_PTR(-ENOMEM);
@@ -1781,26 +1772,27 @@ struct p9_stat_dotl *p9_client_getattr_dotl(struct p9_fid *fid,
goto error;
}
- p9_debug(P9_DEBUG_9P,
- "<<< RGETATTR st_result_mask=%lld\n"
- "<<< qid=%x.%llx.%x\n"
- "<<< st_mode=%8.8x st_nlink=%llu\n"
- "<<< st_uid=%d st_gid=%d\n"
- "<<< st_rdev=%llx st_size=%llx st_blksize=%llu st_blocks=%llu\n"
- "<<< st_atime_sec=%lld st_atime_nsec=%lld\n"
- "<<< st_mtime_sec=%lld st_mtime_nsec=%lld\n"
- "<<< st_ctime_sec=%lld st_ctime_nsec=%lld\n"
- "<<< st_btime_sec=%lld st_btime_nsec=%lld\n"
- "<<< st_gen=%lld st_data_version=%lld\n",
- ret->st_result_mask, ret->qid.type, ret->qid.path,
- ret->qid.version, ret->st_mode, ret->st_nlink,
- from_kuid(&init_user_ns, ret->st_uid),
- from_kgid(&init_user_ns, ret->st_gid),
- ret->st_rdev, ret->st_size, ret->st_blksize,
- ret->st_blocks, ret->st_atime_sec, ret->st_atime_nsec,
- ret->st_mtime_sec, ret->st_mtime_nsec, ret->st_ctime_sec,
- ret->st_ctime_nsec, ret->st_btime_sec, ret->st_btime_nsec,
- ret->st_gen, ret->st_data_version);
+ p9_debug(P9_DEBUG_9P, "<<< RGETATTR st_result_mask=%lld\n"
+ "<<< qid=%x.%llx.%x\n"
+ "<<< st_mode=%8.8x st_nlink=%llu\n"
+ "<<< st_uid=%d st_gid=%d\n"
+ "<<< st_rdev=%llx st_size=%llx st_blksize=%llu st_blocks=%llu\n"
+ "<<< st_atime_sec=%lld st_atime_nsec=%lld\n"
+ "<<< st_mtime_sec=%lld st_mtime_nsec=%lld\n"
+ "<<< st_ctime_sec=%lld st_ctime_nsec=%lld\n"
+ "<<< st_btime_sec=%lld st_btime_nsec=%lld\n"
+ "<<< st_gen=%lld st_data_version=%lld\n",
+ ret->st_result_mask,
+ ret->qid.type, ret->qid.path, ret->qid.version,
+ ret->st_mode, ret->st_nlink,
+ from_kuid(&init_user_ns, ret->st_uid),
+ from_kgid(&init_user_ns, ret->st_gid),
+ ret->st_rdev, ret->st_size, ret->st_blksize, ret->st_blocks,
+ ret->st_atime_sec, ret->st_atime_nsec,
+ ret->st_mtime_sec, ret->st_mtime_nsec,
+ ret->st_ctime_sec, ret->st_ctime_nsec,
+ ret->st_btime_sec, ret->st_btime_nsec,
+ ret->st_gen, ret->st_data_version);
p9_tag_remove(clnt, req);
return ret;
@@ -1819,7 +1811,7 @@ static int p9_client_statsize(struct p9_wstat *wst, int proto_version)
/* size[2] type[2] dev[4] qid[13] */
/* mode[4] atime[4] mtime[4] length[8]*/
/* name[s] uid[s] gid[s] muid[s] */
- ret = 2+4+13+4+4+4+8+2+2+2+2;
+ ret = 2 + 4 + 13 + 4 + 4 + 4 + 8 + 2 + 2 + 2 + 2;
if (wst->name)
ret += strlen(wst->name);
@@ -1830,9 +1822,10 @@ static int p9_client_statsize(struct p9_wstat *wst, int proto_version)
if (wst->muid)
ret += strlen(wst->muid);
- if ((proto_version == p9_proto_2000u) ||
- (proto_version == p9_proto_2000L)) {
- ret += 2+4+4+4; /* extension[s] n_uid[4] n_gid[4] n_muid[4] */
+ if (proto_version == p9_proto_2000u ||
+ proto_version == p9_proto_2000L) {
+ /* extension[s] n_uid[4] n_gid[4] n_muid[4] */
+ ret += 2 + 4 + 4 + 4;
if (wst->extension)
ret += strlen(wst->extension);
}
@@ -1849,21 +1842,23 @@ int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst)
err = 0;
clnt = fid->clnt;
wst->size = p9_client_statsize(wst, clnt->proto_version);
- p9_debug(P9_DEBUG_9P, ">>> TWSTAT fid %d\n", fid->fid);
+ p9_debug(P9_DEBUG_9P, ">>> TWSTAT fid %d\n",
+ fid->fid);
p9_debug(P9_DEBUG_9P,
- " sz=%x type=%x dev=%x qid=%x.%llx.%x\n"
- " mode=%8.8x atime=%8.8x mtime=%8.8x length=%llx\n"
- " name=%s uid=%s gid=%s muid=%s extension=(%s)\n"
- " uid=%d gid=%d n_muid=%d\n",
- wst->size, wst->type, wst->dev, wst->qid.type,
- (unsigned long long)wst->qid.path, wst->qid.version, wst->mode,
- wst->atime, wst->mtime, (unsigned long long)wst->length,
- wst->name, wst->uid, wst->gid, wst->muid, wst->extension,
- from_kuid(&init_user_ns, wst->n_uid),
- from_kgid(&init_user_ns, wst->n_gid),
- from_kuid(&init_user_ns, wst->n_muid));
-
- req = p9_client_rpc(clnt, P9_TWSTAT, "dwS", fid->fid, wst->size+2, wst);
+ " sz=%x type=%x dev=%x qid=%x.%llx.%x\n"
+ " mode=%8.8x atime=%8.8x mtime=%8.8x length=%llx\n"
+ " name=%s uid=%s gid=%s muid=%s extension=(%s)\n"
+ " uid=%d gid=%d n_muid=%d\n",
+ wst->size, wst->type, wst->dev, wst->qid.type,
+ wst->qid.path, wst->qid.version,
+ wst->mode, wst->atime, wst->mtime, wst->length,
+ wst->name, wst->uid, wst->gid, wst->muid, wst->extension,
+ from_kuid(&init_user_ns, wst->n_uid),
+ from_kgid(&init_user_ns, wst->n_gid),
+ from_kuid(&init_user_ns, wst->n_muid));
+
+ req = p9_client_rpc(clnt, P9_TWSTAT, "dwS",
+ fid->fid, wst->size + 2, wst);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
@@ -1886,15 +1881,15 @@ int p9_client_setattr(struct p9_fid *fid, struct p9_iattr_dotl *p9attr)
err = 0;
clnt = fid->clnt;
p9_debug(P9_DEBUG_9P, ">>> TSETATTR fid %d\n", fid->fid);
- p9_debug(P9_DEBUG_9P,
- " valid=%x mode=%x uid=%d gid=%d size=%lld\n"
- " atime_sec=%lld atime_nsec=%lld\n"
- " mtime_sec=%lld mtime_nsec=%lld\n",
- p9attr->valid, p9attr->mode,
- from_kuid(&init_user_ns, p9attr->uid),
- from_kgid(&init_user_ns, p9attr->gid),
- p9attr->size, p9attr->atime_sec, p9attr->atime_nsec,
- p9attr->mtime_sec, p9attr->mtime_nsec);
+ p9_debug(P9_DEBUG_9P, " valid=%x mode=%x uid=%d gid=%d size=%lld\n",
+ p9attr->valid, p9attr->mode,
+ from_kuid(&init_user_ns, p9attr->uid),
+ from_kgid(&init_user_ns, p9attr->gid),
+ p9attr->size);
+ p9_debug(P9_DEBUG_9P, " atime_sec=%lld atime_nsec=%lld\n",
+ p9attr->atime_sec, p9attr->atime_nsec);
+ p9_debug(P9_DEBUG_9P, " mtime_sec=%lld mtime_nsec=%lld\n",
+ p9attr->mtime_sec, p9attr->mtime_nsec);
req = p9_client_rpc(clnt, P9_TSETATTR, "dI", fid->fid, p9attr);
@@ -1935,12 +1930,10 @@ int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb)
goto error;
}
- p9_debug(P9_DEBUG_9P, "<<< RSTATFS fid %d type 0x%lx bsize %ld "
- "blocks %llu bfree %llu bavail %llu files %llu ffree %llu "
- "fsid %llu namelen %ld\n",
- fid->fid, (long unsigned int)sb->type, (long int)sb->bsize,
- sb->blocks, sb->bfree, sb->bavail, sb->files, sb->ffree,
- sb->fsid, (long int)sb->namelen);
+ p9_debug(P9_DEBUG_9P,
+ "<<< RSTATFS fid %d type 0x%x bsize %u blocks %llu bfree %llu bavail %llu files %llu ffree %llu fsid %llu namelen %u\n",
+ fid->fid, sb->type, sb->bsize, sb->blocks, sb->bfree,
+ sb->bavail, sb->files, sb->ffree, sb->fsid, sb->namelen);
p9_tag_remove(clnt, req);
error:
@@ -1959,10 +1952,10 @@ int p9_client_rename(struct p9_fid *fid,
clnt = fid->clnt;
p9_debug(P9_DEBUG_9P, ">>> TRENAME fid %d newdirfid %d name %s\n",
- fid->fid, newdirfid->fid, name);
+ fid->fid, newdirfid->fid, name);
req = p9_client_rpc(clnt, P9_TRENAME, "dds", fid->fid,
- newdirfid->fid, name);
+ newdirfid->fid, name);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
@@ -1986,9 +1979,9 @@ int p9_client_renameat(struct p9_fid *olddirfid, const char *old_name,
err = 0;
clnt = olddirfid->clnt;
- p9_debug(P9_DEBUG_9P, ">>> TRENAMEAT olddirfid %d old name %s"
- " newdirfid %d new name %s\n", olddirfid->fid, old_name,
- newdirfid->fid, new_name);
+ p9_debug(P9_DEBUG_9P,
+ ">>> TRENAMEAT olddirfid %d old name %s newdirfid %d new name %s\n",
+ olddirfid->fid, old_name, newdirfid->fid, new_name);
req = p9_client_rpc(clnt, P9_TRENAMEAT, "dsds", olddirfid->fid,
old_name, newdirfid->fid, new_name);
@@ -1998,7 +1991,7 @@ int p9_client_renameat(struct p9_fid *olddirfid, const char *old_name,
}
p9_debug(P9_DEBUG_9P, "<<< RRENAMEAT newdirfid %d new name %s\n",
- newdirfid->fid, new_name);
+ newdirfid->fid, new_name);
p9_tag_remove(clnt, req);
error:
@@ -2006,11 +1999,10 @@ error:
}
EXPORT_SYMBOL(p9_client_renameat);
-/*
- * An xattrwalk without @attr_name gives the fid for the lisxattr namespace
+/* An xattrwalk without @attr_name gives the fid for the lisxattr namespace
*/
struct p9_fid *p9_client_xattrwalk(struct p9_fid *file_fid,
- const char *attr_name, u64 *attr_size)
+ const char *attr_name, u64 *attr_size)
{
int err;
struct p9_req_t *req;
@@ -2025,11 +2017,11 @@ struct p9_fid *p9_client_xattrwalk(struct p9_fid *file_fid,
goto error;
}
p9_debug(P9_DEBUG_9P,
- ">>> TXATTRWALK file_fid %d, attr_fid %d name %s\n",
- file_fid->fid, attr_fid->fid, attr_name);
+ ">>> TXATTRWALK file_fid %d, attr_fid %d name %s\n",
+ file_fid->fid, attr_fid->fid, attr_name);
req = p9_client_rpc(clnt, P9_TXATTRWALK, "dds",
- file_fid->fid, attr_fid->fid, attr_name);
+ file_fid->fid, attr_fid->fid, attr_name);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
@@ -2042,13 +2034,13 @@ struct p9_fid *p9_client_xattrwalk(struct p9_fid *file_fid,
}
p9_tag_remove(clnt, req);
p9_debug(P9_DEBUG_9P, "<<< RXATTRWALK fid %d size %llu\n",
- attr_fid->fid, *attr_size);
+ attr_fid->fid, *attr_size);
return attr_fid;
clunk_fid:
p9_client_clunk(attr_fid);
attr_fid = NULL;
error:
- if (attr_fid && (attr_fid != file_fid))
+ if (attr_fid && attr_fid != file_fid)
p9_fid_destroy(attr_fid);
return ERR_PTR(err);
@@ -2056,19 +2048,19 @@ error:
EXPORT_SYMBOL_GPL(p9_client_xattrwalk);
int p9_client_xattrcreate(struct p9_fid *fid, const char *name,
- u64 attr_size, int flags)
+ u64 attr_size, int flags)
{
int err;
struct p9_req_t *req;
struct p9_client *clnt;
p9_debug(P9_DEBUG_9P,
- ">>> TXATTRCREATE fid %d name %s size %lld flag %d\n",
- fid->fid, name, (long long)attr_size, flags);
+ ">>> TXATTRCREATE fid %d name %s size %llu flag %d\n",
+ fid->fid, name, attr_size, flags);
err = 0;
clnt = fid->clnt;
req = p9_client_rpc(clnt, P9_TXATTRCREATE, "dsqd",
- fid->fid, name, attr_size, flags);
+ fid->fid, name, attr_size, flags);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
@@ -2092,13 +2084,13 @@ int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset)
iov_iter_kvec(&to, READ, &kv, 1, count);
p9_debug(P9_DEBUG_9P, ">>> TREADDIR fid %d offset %llu count %d\n",
- fid->fid, (unsigned long long) offset, count);
+ fid->fid, offset, count);
err = 0;
clnt = fid->clnt;
rsize = fid->iounit;
- if (!rsize || rsize > clnt->msize-P9_READDIRHDRSZ)
+ if (!rsize || rsize > clnt->msize - P9_READDIRHDRSZ)
rsize = clnt->msize - P9_READDIRHDRSZ;
if (count < rsize)
@@ -2106,8 +2098,7 @@ int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset)
/* Don't bother zerocopy for small IO (< 1024) */
if (clnt->trans_mod->zc_request && rsize > 1024) {
- /*
- * response header len is 11
+ /* response header len is 11
* PDU Header(7) + IO Size (4)
*/
req = p9_client_zc_rpc(clnt, P9_TREADDIR, &to, NULL, rsize, 0,
@@ -2148,7 +2139,7 @@ error:
EXPORT_SYMBOL(p9_client_readdir);
int p9_client_mknod_dotl(struct p9_fid *fid, const char *name, int mode,
- dev_t rdev, kgid_t gid, struct p9_qid *qid)
+ dev_t rdev, kgid_t gid, struct p9_qid *qid)
{
int err;
struct p9_client *clnt;
@@ -2156,10 +2147,11 @@ int p9_client_mknod_dotl(struct p9_fid *fid, const char *name, int mode,
err = 0;
clnt = fid->clnt;
- p9_debug(P9_DEBUG_9P, ">>> TMKNOD fid %d name %s mode %d major %d "
- "minor %d\n", fid->fid, name, mode, MAJOR(rdev), MINOR(rdev));
+ p9_debug(P9_DEBUG_9P,
+ ">>> TMKNOD fid %d name %s mode %d major %d minor %d\n",
+ fid->fid, name, mode, MAJOR(rdev), MINOR(rdev));
req = p9_client_rpc(clnt, P9_TMKNOD, "dsdddg", fid->fid, name, mode,
- MAJOR(rdev), MINOR(rdev), gid);
+ MAJOR(rdev), MINOR(rdev), gid);
if (IS_ERR(req))
return PTR_ERR(req);
@@ -2168,18 +2160,17 @@ int p9_client_mknod_dotl(struct p9_fid *fid, const char *name, int mode,
trace_9p_protocol_dump(clnt, &req->rc);
goto error;
}
- p9_debug(P9_DEBUG_9P, "<<< RMKNOD qid %x.%llx.%x\n", qid->type,
- (unsigned long long)qid->path, qid->version);
+ p9_debug(P9_DEBUG_9P, "<<< RMKNOD qid %x.%llx.%x\n",
+ qid->type, qid->path, qid->version);
error:
p9_tag_remove(clnt, req);
return err;
-
}
EXPORT_SYMBOL(p9_client_mknod_dotl);
int p9_client_mkdir_dotl(struct p9_fid *fid, const char *name, int mode,
- kgid_t gid, struct p9_qid *qid)
+ kgid_t gid, struct p9_qid *qid)
{
int err;
struct p9_client *clnt;
@@ -2189,8 +2180,8 @@ int p9_client_mkdir_dotl(struct p9_fid *fid, const char *name, int mode,
clnt = fid->clnt;
p9_debug(P9_DEBUG_9P, ">>> TMKDIR fid %d name %s mode %d gid %d\n",
fid->fid, name, mode, from_kgid(&init_user_ns, gid));
- req = p9_client_rpc(clnt, P9_TMKDIR, "dsdg", fid->fid, name, mode,
- gid);
+ req = p9_client_rpc(clnt, P9_TMKDIR, "dsdg",
+ fid->fid, name, mode, gid);
if (IS_ERR(req))
return PTR_ERR(req);
@@ -2200,12 +2191,11 @@ int p9_client_mkdir_dotl(struct p9_fid *fid, const char *name, int mode,
goto error;
}
p9_debug(P9_DEBUG_9P, "<<< RMKDIR qid %x.%llx.%x\n", qid->type,
- (unsigned long long)qid->path, qid->version);
+ qid->path, qid->version);
error:
p9_tag_remove(clnt, req);
return err;
-
}
EXPORT_SYMBOL(p9_client_mkdir_dotl);
@@ -2217,14 +2207,14 @@ int p9_client_lock_dotl(struct p9_fid *fid, struct p9_flock *flock, u8 *status)
err = 0;
clnt = fid->clnt;
- p9_debug(P9_DEBUG_9P, ">>> TLOCK fid %d type %i flags %d "
- "start %lld length %lld proc_id %d client_id %s\n",
- fid->fid, flock->type, flock->flags, flock->start,
- flock->length, flock->proc_id, flock->client_id);
+ p9_debug(P9_DEBUG_9P,
+ ">>> TLOCK fid %d type %i flags %d start %lld length %lld proc_id %d client_id %s\n",
+ fid->fid, flock->type, flock->flags, flock->start,
+ flock->length, flock->proc_id, flock->client_id);
req = p9_client_rpc(clnt, P9_TLOCK, "dbdqqds", fid->fid, flock->type,
- flock->flags, flock->start, flock->length,
- flock->proc_id, flock->client_id);
+ flock->flags, flock->start, flock->length,
+ flock->proc_id, flock->client_id);
if (IS_ERR(req))
return PTR_ERR(req);
@@ -2238,7 +2228,6 @@ int p9_client_lock_dotl(struct p9_fid *fid, struct p9_flock *flock, u8 *status)
error:
p9_tag_remove(clnt, req);
return err;
-
}
EXPORT_SYMBOL(p9_client_lock_dotl);
@@ -2250,12 +2239,14 @@ int p9_client_getlock_dotl(struct p9_fid *fid, struct p9_getlock *glock)
err = 0;
clnt = fid->clnt;
- p9_debug(P9_DEBUG_9P, ">>> TGETLOCK fid %d, type %i start %lld "
- "length %lld proc_id %d client_id %s\n", fid->fid, glock->type,
- glock->start, glock->length, glock->proc_id, glock->client_id);
+ p9_debug(P9_DEBUG_9P,
+ ">>> TGETLOCK fid %d, type %i start %lld length %lld proc_id %d client_id %s\n",
+ fid->fid, glock->type, glock->start, glock->length,
+ glock->proc_id, glock->client_id);
- req = p9_client_rpc(clnt, P9_TGETLOCK, "dbqqds", fid->fid, glock->type,
- glock->start, glock->length, glock->proc_id, glock->client_id);
+ req = p9_client_rpc(clnt, P9_TGETLOCK, "dbqqds", fid->fid,
+ glock->type, glock->start, glock->length,
+ glock->proc_id, glock->client_id);
if (IS_ERR(req))
return PTR_ERR(req);
@@ -2267,9 +2258,10 @@ int p9_client_getlock_dotl(struct p9_fid *fid, struct p9_getlock *glock)
trace_9p_protocol_dump(clnt, &req->rc);
goto error;
}
- p9_debug(P9_DEBUG_9P, "<<< RGETLOCK type %i start %lld length %lld "
- "proc_id %d client_id %s\n", glock->type, glock->start,
- glock->length, glock->proc_id, glock->client_id);
+ p9_debug(P9_DEBUG_9P,
+ "<<< RGETLOCK type %i start %lld length %lld proc_id %d client_id %s\n",
+ glock->type, glock->start, glock->length,
+ glock->proc_id, glock->client_id);
error:
p9_tag_remove(clnt, req);
return err;
diff --git a/net/9p/error.c b/net/9p/error.c
index a962217fc158..8da744494b68 100644
--- a/net/9p/error.c
+++ b/net/9p/error.c
@@ -183,7 +183,7 @@ int p9_error_init(void)
INIT_HLIST_HEAD(&hash_errmap[bucket]);
/* load initial error map into hash table */
- for (c = errmap; c->name != NULL; c++) {
+ for (c = errmap; c->name; c++) {
c->namelen = strlen(c->name);
bucket = jhash(c->name, c->namelen, 0) % ERRHASHSZ;
INIT_HLIST_NODE(&c->list);
diff --git a/net/9p/mod.c b/net/9p/mod.c
index d38358c085ff..c37fc201a944 100644
--- a/net/9p/mod.c
+++ b/net/9p/mod.c
@@ -23,13 +23,13 @@
#include <linux/spinlock.h>
#ifdef CONFIG_NET_9P_DEBUG
-unsigned int p9_debug_level = 0; /* feature-rific global debug level */
+unsigned int p9_debug_level; /* feature-rific global debug level */
EXPORT_SYMBOL(p9_debug_level);
module_param_named(debug, p9_debug_level, uint, 0);
MODULE_PARM_DESC(debug, "9P debugging level");
void _p9_debug(enum p9_debug_flags level, const char *func,
- const char *fmt, ...)
+ const char *fmt, ...)
{
struct va_format vaf;
va_list args;
@@ -52,10 +52,7 @@ void _p9_debug(enum p9_debug_flags level, const char *func,
EXPORT_SYMBOL(_p9_debug);
#endif
-/*
- * Dynamic Transport Registration Routines
- *
- */
+/* Dynamic Transport Registration Routines */
static DEFINE_SPINLOCK(v9fs_trans_lock);
static LIST_HEAD(v9fs_trans_list);
diff --git a/net/9p/protocol.c b/net/9p/protocol.c
index ba2a72c4655e..3754c33e2974 100644
--- a/net/9p/protocol.c
+++ b/net/9p/protocol.c
@@ -44,6 +44,7 @@ EXPORT_SYMBOL(p9stat_free);
size_t pdu_read(struct p9_fcall *pdu, void *data, size_t size)
{
size_t len = min(pdu->size - pdu->offset, size);
+
memcpy(data, &pdu->sdata[pdu->offset], len);
pdu->offset += len;
return size - len;
@@ -52,6 +53,7 @@ size_t pdu_read(struct p9_fcall *pdu, void *data, size_t size)
static size_t pdu_write(struct p9_fcall *pdu, const void *data, size_t size)
{
size_t len = min(pdu->capacity - pdu->size, size);
+
memcpy(&pdu->sdata[pdu->size], data, len);
pdu->size += len;
return size - len;
@@ -62,6 +64,7 @@ pdu_write_u(struct p9_fcall *pdu, struct iov_iter *from, size_t size)
{
size_t len = min(pdu->capacity - pdu->size, size);
struct iov_iter i = *from;
+
if (!copy_from_iter_full(&pdu->sdata[pdu->size], len, &i))
len = 0;
@@ -69,26 +72,25 @@ pdu_write_u(struct p9_fcall *pdu, struct iov_iter *from, size_t size)
return size - len;
}
-/*
- b - int8_t
- w - int16_t
- d - int32_t
- q - int64_t
- s - string
- u - numeric uid
- g - numeric gid
- S - stat
- Q - qid
- D - data blob (int32_t size followed by void *, results are not freed)
- T - array of strings (int16_t count, followed by strings)
- R - array of qids (int16_t count, followed by qids)
- A - stat for 9p2000.L (p9_stat_dotl)
- ? - if optional = 1, continue parsing
-*/
+/* b - int8_t
+ * w - int16_t
+ * d - int32_t
+ * q - int64_t
+ * s - string
+ * u - numeric uid
+ * g - numeric gid
+ * S - stat
+ * Q - qid
+ * D - data blob (int32_t size followed by void *, results are not freed)
+ * T - array of strings (int16_t count, followed by strings)
+ * R - array of qids (int16_t count, followed by qids)
+ * A - stat for 9p2000.L (p9_stat_dotl)
+ * ? - if optional = 1, continue parsing
+ */
static int
p9pdu_vreadf(struct p9_fcall *pdu, int proto_version, const char *fmt,
- va_list ap)
+ va_list ap)
{
const char *ptr;
int errcode = 0;
diff --git a/net/9p/protocol.h b/net/9p/protocol.h
index 39eab817f03d..6d719c30331a 100644
--- a/net/9p/protocol.h
+++ b/net/9p/protocol.h
@@ -9,7 +9,7 @@
*/
int p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt,
- va_list ap);
+ va_list ap);
int p9pdu_readf(struct p9_fcall *pdu, int proto_version, const char *fmt, ...);
int p9pdu_prepare(struct p9_fcall *pdu, int16_t tag, int8_t type);
int p9pdu_finalize(struct p9_client *clnt, struct p9_fcall *pdu);
diff --git a/net/9p/trans_common.h b/net/9p/trans_common.h
index bab083353ad9..32134db6abf3 100644
--- a/net/9p/trans_common.h
+++ b/net/9p/trans_common.h
@@ -4,4 +4,4 @@
* Author Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
*/
-void p9_release_pages(struct page **, int);
+void p9_release_pages(struct page **pages, int nr_pages);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-22 10:25:28 +0300