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-rw-r--r--fs/9p/acl.c4
-rw-r--r--fs/9p/v9fs.h1
-rw-r--r--fs/9p/v9fs_vfs.h4
-rw-r--r--fs/9p/vfs_addr.c87
-rw-r--r--fs/9p/vfs_dentry.c4
-rw-r--r--fs/9p/vfs_dir.c17
-rw-r--r--fs/9p/vfs_file.c326
-rw-r--r--fs/9p/vfs_inode.c34
-rw-r--r--fs/9p/vfs_inode_dotl.c16
-rw-r--r--fs/9p/vfs_super.c8
-rw-r--r--fs/9p/xattr.c80
11 files changed, 168 insertions, 413 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index 8482f2d11606..31c010372660 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -247,7 +247,7 @@ static int v9fs_xattr_get_acl(struct dentry *dentry, const char *name,
if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT)
return v9fs_remote_get_acl(dentry, name, buffer, size, type);
- acl = v9fs_get_cached_acl(dentry->d_inode, type);
+ acl = v9fs_get_cached_acl(d_inode(dentry), type);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
@@ -285,7 +285,7 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
int retval;
struct posix_acl *acl;
struct v9fs_session_info *v9ses;
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = d_inode(dentry);
if (strcmp(name, "") != 0)
return -EINVAL;
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index 099c7712631c..fb9ffcb43277 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -78,7 +78,6 @@ enum p9_cache_modes {
* @cache: cache mode of type &p9_cache_modes
* @cachetag: the tag of the cache associated with this session
* @fscache: session cookie associated with FS-Cache
- * @options: copy of options string given by user
* @uname: string user name to mount hierarchy as
* @aname: mount specifier for remote hierarchy
* @maxdata: maximum data to be sent/recvd per protocol message
diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index b83ebfbf3fdc..5a0db6dec8d1 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -68,14 +68,10 @@ int v9fs_file_open(struct inode *inode, struct file *file);
void v9fs_inode2stat(struct inode *inode, struct p9_wstat *stat);
int v9fs_uflags2omode(int uflags, int extended);
-ssize_t v9fs_file_readn(struct file *, char *, char __user *, u32, u64);
-ssize_t v9fs_fid_readn(struct p9_fid *, char *, char __user *, u32, u64);
void v9fs_blank_wstat(struct p9_wstat *wstat);
int v9fs_vfs_setattr_dotl(struct dentry *, struct iattr *);
int v9fs_file_fsync_dotl(struct file *filp, loff_t start, loff_t end,
int datasync);
-ssize_t v9fs_file_write_internal(struct inode *, struct p9_fid *,
- const char __user *, size_t, loff_t *, int);
int v9fs_refresh_inode(struct p9_fid *fid, struct inode *inode);
int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode);
static inline void v9fs_invalidate_inode_attr(struct inode *inode)
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index eb14e055ea83..e9e04376c52c 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -33,7 +33,7 @@
#include <linux/pagemap.h>
#include <linux/idr.h>
#include <linux/sched.h>
-#include <linux/aio.h>
+#include <linux/uio.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
@@ -51,12 +51,11 @@
*/
static int v9fs_fid_readpage(struct p9_fid *fid, struct page *page)
{
- int retval;
- loff_t offset;
- char *buffer;
- struct inode *inode;
+ struct inode *inode = page->mapping->host;
+ struct bio_vec bvec = {.bv_page = page, .bv_len = PAGE_SIZE};
+ struct iov_iter to;
+ int retval, err;
- inode = page->mapping->host;
p9_debug(P9_DEBUG_VFS, "\n");
BUG_ON(!PageLocked(page));
@@ -65,16 +64,16 @@ static int v9fs_fid_readpage(struct p9_fid *fid, struct page *page)
if (retval == 0)
return retval;
- buffer = kmap(page);
- offset = page_offset(page);
+ iov_iter_bvec(&to, ITER_BVEC | READ, &bvec, 1, PAGE_SIZE);
- retval = v9fs_fid_readn(fid, buffer, NULL, PAGE_CACHE_SIZE, offset);
- if (retval < 0) {
+ retval = p9_client_read(fid, page_offset(page), &to, &err);
+ if (err) {
v9fs_uncache_page(inode, page);
+ retval = err;
goto done;
}
- memset(buffer + retval, 0, PAGE_CACHE_SIZE - retval);
+ zero_user(page, retval, PAGE_SIZE - retval);
flush_dcache_page(page);
SetPageUptodate(page);
@@ -82,7 +81,6 @@ static int v9fs_fid_readpage(struct p9_fid *fid, struct page *page)
retval = 0;
done:
- kunmap(page);
unlock_page(page);
return retval;
}
@@ -161,41 +159,32 @@ static void v9fs_invalidate_page(struct page *page, unsigned int offset,
static int v9fs_vfs_writepage_locked(struct page *page)
{
- char *buffer;
- int retval, len;
- loff_t offset, size;
- mm_segment_t old_fs;
- struct v9fs_inode *v9inode;
struct inode *inode = page->mapping->host;
+ struct v9fs_inode *v9inode = V9FS_I(inode);
+ loff_t size = i_size_read(inode);
+ struct iov_iter from;
+ struct bio_vec bvec;
+ int err, len;
- v9inode = V9FS_I(inode);
- size = i_size_read(inode);
if (page->index == size >> PAGE_CACHE_SHIFT)
len = size & ~PAGE_CACHE_MASK;
else
len = PAGE_CACHE_SIZE;
- set_page_writeback(page);
-
- buffer = kmap(page);
- offset = page_offset(page);
+ bvec.bv_page = page;
+ bvec.bv_offset = 0;
+ bvec.bv_len = len;
+ iov_iter_bvec(&from, ITER_BVEC | WRITE, &bvec, 1, len);
- old_fs = get_fs();
- set_fs(get_ds());
/* We should have writeback_fid always set */
BUG_ON(!v9inode->writeback_fid);
- retval = v9fs_file_write_internal(inode,
- v9inode->writeback_fid,
- (__force const char __user *)buffer,
- len, &offset, 0);
- if (retval > 0)
- retval = 0;
+ set_page_writeback(page);
+
+ p9_client_write(v9inode->writeback_fid, page_offset(page), &from, &err);
- set_fs(old_fs);
- kunmap(page);
end_page_writeback(page);
- return retval;
+ return err;
}
static int v9fs_vfs_writepage(struct page *page, struct writeback_control *wbc)
@@ -241,11 +230,8 @@ static int v9fs_launder_page(struct page *page)
/**
* v9fs_direct_IO - 9P address space operation for direct I/O
- * @rw: direction (read or write)
* @iocb: target I/O control block
- * @iov: array of vectors that define I/O buffer
* @pos: offset in file to begin the operation
- * @nr_segs: size of iovec array
*
* The presence of v9fs_direct_IO() in the address space ops vector
* allowes open() O_DIRECT flags which would have failed otherwise.
@@ -259,18 +245,23 @@ static int v9fs_launder_page(struct page *page)
*
*/
static ssize_t
-v9fs_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, loff_t pos)
+v9fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter, loff_t pos)
{
- /*
- * FIXME
- * Now that we do caching with cache mode enabled, We need
- * to support direct IO
- */
- p9_debug(P9_DEBUG_VFS, "v9fs_direct_IO: v9fs_direct_IO (%pD) off/no(%lld/%lu) EINVAL\n",
- iocb->ki_filp,
- (long long)pos, iter->nr_segs);
-
- return -EINVAL;
+ struct file *file = iocb->ki_filp;
+ 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);
+ }
+ } else {
+ n = p9_client_read(file->private_data, pos, iter, &err);
+ }
+ return n ? n : err;
}
static int v9fs_write_begin(struct file *filp, struct address_space *mapping,
diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c
index a345b2d659cc..bd456c668d39 100644
--- a/fs/9p/vfs_dentry.c
+++ b/fs/9p/vfs_dentry.c
@@ -53,7 +53,7 @@ static int v9fs_cached_dentry_delete(const struct dentry *dentry)
dentry, dentry);
/* Don't cache negative dentries */
- if (!dentry->d_inode)
+ if (d_really_is_negative(dentry))
return 1;
return 0;
}
@@ -83,7 +83,7 @@ static int v9fs_lookup_revalidate(struct dentry *dentry, unsigned int flags)
if (flags & LOOKUP_RCU)
return -ECHILD;
- inode = dentry->d_inode;
+ inode = d_inode(dentry);
if (!inode)
goto out_valid;
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 4f1151088ebe..5cc00e56206e 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -33,6 +33,7 @@
#include <linux/inet.h>
#include <linux/idr.h>
#include <linux/slab.h>
+#include <linux/uio.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
@@ -115,6 +116,7 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx)
int buflen;
int reclen = 0;
struct p9_rdir *rdir;
+ struct kvec kvec;
p9_debug(P9_DEBUG_VFS, "name %pD\n", file);
fid = file->private_data;
@@ -124,16 +126,23 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx)
rdir = v9fs_alloc_rdir_buf(file, buflen);
if (!rdir)
return -ENOMEM;
+ kvec.iov_base = rdir->buf;
+ kvec.iov_len = buflen;
while (1) {
if (rdir->tail == rdir->head) {
- err = v9fs_file_readn(file, rdir->buf, NULL,
- buflen, ctx->pos);
- if (err <= 0)
+ struct iov_iter to;
+ int n;
+ iov_iter_kvec(&to, READ | ITER_KVEC, &kvec, 1, buflen);
+ n = p9_client_read(file->private_data, ctx->pos, &to,
+ &err);
+ if (err)
return err;
+ if (n == 0)
+ return 0;
rdir->head = 0;
- rdir->tail = err;
+ rdir->tail = n;
}
while (rdir->head < rdir->tail) {
p9stat_init(&st);
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index b40133796b87..1ef16bd8280b 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -36,6 +36,8 @@
#include <linux/utsname.h>
#include <asm/uaccess.h>
#include <linux/idr.h>
+#include <linux/uio.h>
+#include <linux/slab.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
@@ -149,7 +151,7 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
{
struct p9_flock flock;
struct p9_fid *fid;
- uint8_t status;
+ uint8_t status = P9_LOCK_ERROR;
int res = 0;
unsigned char fl_type;
@@ -194,7 +196,7 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
for (;;) {
res = p9_client_lock_dotl(fid, &flock, &status);
if (res < 0)
- break;
+ goto out_unlock;
if (status != P9_LOCK_BLOCKED)
break;
@@ -212,14 +214,16 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
case P9_LOCK_BLOCKED:
res = -EAGAIN;
break;
+ default:
+ WARN_ONCE(1, "unknown lock status code: %d\n", status);
+ /* fallthough */
case P9_LOCK_ERROR:
case P9_LOCK_GRACE:
res = -ENOLCK;
break;
- default:
- BUG();
}
+out_unlock:
/*
* incase server returned error for lock request, revert
* it locally
@@ -285,6 +289,7 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
fl->fl_end = glock.start + glock.length - 1;
fl->fl_pid = glock.proc_id;
}
+ kfree(glock.client_id);
return res;
}
@@ -364,63 +369,6 @@ out_err:
}
/**
- * v9fs_fid_readn - read from a fid
- * @fid: fid to read
- * @data: data buffer to read data into
- * @udata: user data buffer to read data into
- * @count: size of buffer
- * @offset: offset at which to read data
- *
- */
-ssize_t
-v9fs_fid_readn(struct p9_fid *fid, char *data, char __user *udata, u32 count,
- u64 offset)
-{
- int n, total, size;
-
- p9_debug(P9_DEBUG_VFS, "fid %d offset %llu count %d\n",
- fid->fid, (long long unsigned)offset, count);
- n = 0;
- total = 0;
- size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ;
- do {
- n = p9_client_read(fid, data, udata, offset, count);
- if (n <= 0)
- break;
-
- if (data)
- data += n;
- if (udata)
- udata += n;
-
- offset += n;
- count -= n;
- total += n;
- } while (count > 0 && n == size);
-
- if (n < 0)
- total = n;
-
- return total;
-}
-
-/**
- * v9fs_file_readn - read from a file
- * @filp: file pointer to read
- * @data: data buffer to read data into
- * @udata: user data buffer to read data into
- * @count: size of buffer
- * @offset: offset at which to read data
- *
- */
-ssize_t
-v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count,
- u64 offset)
-{
- return v9fs_fid_readn(filp->private_data, data, udata, count, offset);
-}
-
-/**
* v9fs_file_read - read from a file
* @filp: file pointer to read
* @udata: user data buffer to read data into
@@ -430,69 +378,22 @@ v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count,
*/
static ssize_t
-v9fs_file_read(struct file *filp, char __user *udata, size_t count,
- loff_t * offset)
+v9fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
{
- int ret;
- struct p9_fid *fid;
- size_t size;
-
- p9_debug(P9_DEBUG_VFS, "count %zu offset %lld\n", count, *offset);
- fid = filp->private_data;
+ struct p9_fid *fid = iocb->ki_filp->private_data;
+ int ret, err;
- size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ;
- if (count > size)
- ret = v9fs_file_readn(filp, NULL, udata, count, *offset);
- else
- ret = p9_client_read(fid, NULL, udata, *offset, count);
+ p9_debug(P9_DEBUG_VFS, "count %zu offset %lld\n",
+ iov_iter_count(to), iocb->ki_pos);
- if (ret > 0)
- *offset += ret;
+ ret = p9_client_read(fid, iocb->ki_pos, to, &err);
+ if (!ret)
+ return err;
+ iocb->ki_pos += ret;
return ret;
}
-ssize_t
-v9fs_file_write_internal(struct inode *inode, struct p9_fid *fid,
- const char __user *data, size_t count,
- loff_t *offset, int invalidate)
-{
- int n;
- loff_t i_size;
- size_t total = 0;
- loff_t origin = *offset;
- unsigned long pg_start, pg_end;
-
- p9_debug(P9_DEBUG_VFS, "data %p count %d offset %x\n",
- data, (int)count, (int)*offset);
-
- do {
- n = p9_client_write(fid, NULL, data+total, origin+total, count);
- if (n <= 0)
- break;
- count -= n;
- total += n;
- } while (count > 0);
-
- if (invalidate && (total > 0)) {
- pg_start = origin >> PAGE_CACHE_SHIFT;
- pg_end = (origin + total - 1) >> PAGE_CACHE_SHIFT;
- if (inode->i_mapping && inode->i_mapping->nrpages)
- invalidate_inode_pages2_range(inode->i_mapping,
- pg_start, pg_end);
- *offset += total;
- i_size = i_size_read(inode);
- if (*offset > i_size) {
- inode_add_bytes(inode, *offset - i_size);
- i_size_write(inode, *offset);
- }
- }
- if (n < 0)
- return n;
-
- return total;
-}
-
/**
* v9fs_file_write - write to a file
* @filp: file pointer to write
@@ -502,35 +403,39 @@ v9fs_file_write_internal(struct inode *inode, struct p9_fid *fid,
*
*/
static ssize_t
-v9fs_file_write(struct file *filp, const char __user * data,
- size_t count, loff_t *offset)
+v9fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
{
- ssize_t retval = 0;
- loff_t origin = *offset;
-
-
- retval = generic_write_checks(filp, &origin, &count, 0);
- if (retval)
- goto out;
+ struct file *file = iocb->ki_filp;
+ ssize_t retval;
+ loff_t origin;
+ int err = 0;
- retval = -EINVAL;
- if ((ssize_t) count < 0)
- goto out;
- retval = 0;
- if (!count)
- goto out;
+ retval = generic_write_checks(iocb, from);
+ if (retval <= 0)
+ return retval;
- retval = v9fs_file_write_internal(file_inode(filp),
- filp->private_data,
- data, count, &origin, 1);
- /* update offset on successful write */
- if (retval > 0)
- *offset = origin;
-out:
- return retval;
+ origin = iocb->ki_pos;
+ retval = p9_client_write(file->private_data, iocb->ki_pos, from, &err);
+ if (retval > 0) {
+ struct inode *inode = file_inode(file);
+ loff_t i_size;
+ unsigned long pg_start, pg_end;
+ pg_start = origin >> PAGE_CACHE_SHIFT;
+ pg_end = (origin + retval - 1) >> PAGE_CACHE_SHIFT;
+ if (inode->i_mapping && inode->i_mapping->nrpages)
+ invalidate_inode_pages2_range(inode->i_mapping,
+ pg_start, pg_end);
+ iocb->ki_pos += retval;
+ i_size = i_size_read(inode);
+ if (iocb->ki_pos > i_size) {
+ inode_add_bytes(inode, iocb->ki_pos - i_size);
+ i_size_write(inode, iocb->ki_pos);
+ }
+ return retval;
+ }
+ return err;
}
-
static int v9fs_file_fsync(struct file *filp, loff_t start, loff_t end,
int datasync)
{
@@ -657,44 +562,6 @@ out_unlock:
return VM_FAULT_NOPAGE;
}
-static ssize_t
-v9fs_direct_read(struct file *filp, char __user *udata, size_t count,
- loff_t *offsetp)
-{
- loff_t size, offset;
- struct inode *inode;
- struct address_space *mapping;
-
- offset = *offsetp;
- mapping = filp->f_mapping;
- inode = mapping->host;
- if (!count)
- return 0;
- size = i_size_read(inode);
- if (offset < size)
- filemap_write_and_wait_range(mapping, offset,
- offset + count - 1);
-
- return v9fs_file_read(filp, udata, count, offsetp);
-}
-
-/**
- * v9fs_cached_file_read - read from a file
- * @filp: file pointer to read
- * @data: user data buffer to read data into
- * @count: size of buffer
- * @offset: offset at which to read data
- *
- */
-static ssize_t
-v9fs_cached_file_read(struct file *filp, char __user *data, size_t count,
- loff_t *offset)
-{
- if (filp->f_flags & O_DIRECT)
- return v9fs_direct_read(filp, data, count, offset);
- return new_sync_read(filp, data, count, offset);
-}
-
/**
* v9fs_mmap_file_read - read from a file
* @filp: file pointer to read
@@ -704,84 +571,12 @@ v9fs_cached_file_read(struct file *filp, char __user *data, size_t count,
*
*/
static ssize_t
-v9fs_mmap_file_read(struct file *filp, char __user *data, size_t count,
- loff_t *offset)
+v9fs_mmap_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
{
/* TODO: Check if there are dirty pages */
- return v9fs_file_read(filp, data, count, offset);
-}
-
-static ssize_t
-v9fs_direct_write(struct file *filp, const char __user * data,
- size_t count, loff_t *offsetp)
-{
- loff_t offset;
- ssize_t retval;
- struct inode *inode;
- struct address_space *mapping;
-
- offset = *offsetp;
- mapping = filp->f_mapping;
- inode = mapping->host;
- if (!count)
- return 0;
-
- mutex_lock(&inode->i_mutex);
- retval = filemap_write_and_wait_range(mapping, offset,
- offset + count - 1);
- if (retval)
- goto err_out;
- /*
- * After a write we want buffered reads to be sure to go to disk to get
- * the new data. We invalidate clean cached page from the region we're
- * about to write. We do this *before* the write so that if we fail
- * here we fall back to buffered write
- */
- if (mapping->nrpages) {
- pgoff_t pg_start = offset >> PAGE_CACHE_SHIFT;
- pgoff_t pg_end = (offset + count - 1) >> PAGE_CACHE_SHIFT;
-
- retval = invalidate_inode_pages2_range(mapping,
- pg_start, pg_end);
- /*
- * If a page can not be invalidated, fall back
- * to buffered write.
- */
- if (retval) {
- if (retval == -EBUSY)
- goto buff_write;
- goto err_out;
- }
- }
- retval = v9fs_file_write(filp, data, count, offsetp);
-err_out:
- mutex_unlock(&inode->i_mutex);
- return retval;
-
-buff_write:
- mutex_unlock(&inode->i_mutex);
- return new_sync_write(filp, data, count, offsetp);
-}
-
-/**
- * v9fs_cached_file_write - write to a file
- * @filp: file pointer to write
- * @data: data buffer to write data from
- * @count: size of buffer
- * @offset: offset at which to write data
- *
- */
-static ssize_t
-v9fs_cached_file_write(struct file *filp, const char __user * data,
- size_t count, loff_t *offset)
-{
-
- if (filp->f_flags & O_DIRECT)
- return v9fs_direct_write(filp, data, count, offset);
- return new_sync_write(filp, data, count, offset);
+ return v9fs_file_read_iter(iocb, to);
}
-
/**
* v9fs_mmap_file_write - write to a file
* @filp: file pointer to write
@@ -791,14 +586,13 @@ v9fs_cached_file_write(struct file *filp, const char __user * data,
*
*/
static ssize_t
-v9fs_mmap_file_write(struct file *filp, const char __user *data,
- size_t count, loff_t *offset)
+v9fs_mmap_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
{
/*
* TODO: invalidate mmaps on filp's inode between
* offset and offset+count
*/
- return v9fs_file_write(filp, data, count, offset);
+ return v9fs_file_write_iter(iocb, from);
}
static void v9fs_mmap_vm_close(struct vm_area_struct *vma)
@@ -843,8 +637,6 @@ static const struct vm_operations_struct v9fs_mmap_file_vm_ops = {
const struct file_operations v9fs_cached_file_operations = {
.llseek = generic_file_llseek,
- .read = v9fs_cached_file_read,
- .write = v9fs_cached_file_write,
.read_iter = generic_file_read_iter,
.write_iter = generic_file_write_iter,
.open = v9fs_file_open,
@@ -856,8 +648,6 @@ const struct file_operations v9fs_cached_file_operations = {
const struct file_operations v9fs_cached_file_operations_dotl = {
.llseek = generic_file_llseek,
- .read = v9fs_cached_file_read,
- .write = v9fs_cached_file_write,
.read_iter = generic_file_read_iter,
.write_iter = generic_file_write_iter,
.open = v9fs_file_open,
@@ -870,8 +660,8 @@ const struct file_operations v9fs_cached_file_operations_dotl = {
const struct file_operations v9fs_file_operations = {
.llseek = generic_file_llseek,
- .read = v9fs_file_read,
- .write = v9fs_file_write,
+ .read_iter = v9fs_file_read_iter,
+ .write_iter = v9fs_file_write_iter,
.open = v9fs_file_open,
.release = v9fs_dir_release,
.lock = v9fs_file_lock,
@@ -881,8 +671,8 @@ const struct file_operations v9fs_file_operations = {
const struct file_operations v9fs_file_operations_dotl = {
.llseek = generic_file_llseek,
- .read = v9fs_file_read,
- .write = v9fs_file_write,
+ .read_iter = v9fs_file_read_iter,
+ .write_iter = v9fs_file_write_iter,
.open = v9fs_file_open,
.release = v9fs_dir_release,
.lock = v9fs_file_lock_dotl,
@@ -893,8 +683,8 @@ const struct file_operations v9fs_file_operations_dotl = {
const struct file_operations v9fs_mmap_file_operations = {
.llseek = generic_file_llseek,
- .read = v9fs_mmap_file_read,
- .write = v9fs_mmap_file_write,
+ .read_iter = v9fs_mmap_file_read_iter,
+ .write_iter = v9fs_mmap_file_write_iter,
.open = v9fs_file_open,
.release = v9fs_dir_release,
.lock = v9fs_file_lock,
@@ -904,8 +694,8 @@ const struct file_operations v9fs_mmap_file_operations = {
const struct file_operations v9fs_mmap_file_operations_dotl = {
.llseek = generic_file_llseek,
- .read = v9fs_mmap_file_read,
- .write = v9fs_mmap_file_write,
+ .read_iter = v9fs_mmap_file_read_iter,
+ .write_iter = v9fs_mmap_file_write_iter,
.open = v9fs_file_open,
.release = v9fs_dir_release,
.lock = v9fs_file_lock_dotl,
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 3662f1d1d9cf..703342e309f5 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -595,7 +595,7 @@ static int v9fs_remove(struct inode *dir, struct dentry *dentry, int flags)
dir, dentry, flags);
v9ses = v9fs_inode2v9ses(dir);
- inode = dentry->d_inode;
+ inode = d_inode(dentry);
dfid = v9fs_fid_lookup(dentry->d_parent);
if (IS_ERR(dfid)) {
retval = PTR_ERR(dfid);
@@ -864,7 +864,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
}
/* Only creates */
- if (!(flags & O_CREAT) || dentry->d_inode)
+ if (!(flags & O_CREAT) || d_really_is_positive(dentry))
return finish_no_open(file, res);
err = 0;
@@ -881,7 +881,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
}
v9fs_invalidate_inode_attr(dir);
- v9inode = V9FS_I(dentry->d_inode);
+ v9inode = V9FS_I(d_inode(dentry));
mutex_lock(&v9inode->v_mutex);
if ((v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) &&
!v9inode->writeback_fid &&
@@ -908,7 +908,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
file->private_data = fid;
if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
- v9fs_cache_inode_set_cookie(dentry->d_inode, file);
+ v9fs_cache_inode_set_cookie(d_inode(dentry), file);
*opened |= FILE_CREATED;
out:
@@ -969,8 +969,8 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
p9_debug(P9_DEBUG_VFS, "\n");
retval = 0;
- old_inode = old_dentry->d_inode;
- new_inode = new_dentry->d_inode;
+ old_inode = d_inode(old_dentry);
+ new_inode = d_inode(new_dentry);
v9ses = v9fs_inode2v9ses(old_inode);
oldfid = v9fs_fid_lookup(old_dentry);
if (IS_ERR(oldfid))
@@ -1061,7 +1061,7 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry);
v9ses = v9fs_dentry2v9ses(dentry);
if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
- generic_fillattr(dentry->d_inode, stat);
+ generic_fillattr(d_inode(dentry), stat);
return 0;
}
fid = v9fs_fid_lookup(dentry);
@@ -1072,8 +1072,8 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
if (IS_ERR(st))
return PTR_ERR(st);
- v9fs_stat2inode(st, dentry->d_inode, dentry->d_inode->i_sb);
- generic_fillattr(dentry->d_inode, stat);
+ v9fs_stat2inode(st, d_inode(dentry), d_inode(dentry)->i_sb);
+ generic_fillattr(d_inode(dentry), stat);
p9stat_free(st);
kfree(st);
@@ -1095,7 +1095,7 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
struct p9_wstat wstat;
p9_debug(P9_DEBUG_VFS, "\n");
- retval = inode_change_ok(dentry->d_inode, iattr);
+ retval = inode_change_ok(d_inode(dentry), iattr);
if (retval)
return retval;
@@ -1128,20 +1128,20 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
/* Write all dirty data */
if (d_is_reg(dentry))
- filemap_write_and_wait(dentry->d_inode->i_mapping);
+ filemap_write_and_wait(d_inode(dentry)->i_mapping);
retval = p9_client_wstat(fid, &wstat);
if (retval < 0)
return retval;
if ((iattr->ia_valid & ATTR_SIZE) &&
- iattr->ia_size != i_size_read(dentry->d_inode))
- truncate_setsize(dentry->d_inode, iattr->ia_size);
+ iattr->ia_size != i_size_read(d_inode(dentry)))
+ truncate_setsize(d_inode(dentry), iattr->ia_size);
- v9fs_invalidate_inode_attr(dentry->d_inode);
+ v9fs_invalidate_inode_attr(d_inode(dentry));
- setattr_copy(dentry->d_inode, iattr);
- mark_inode_dirty(dentry->d_inode);
+ setattr_copy(d_inode(dentry), iattr);
+ mark_inode_dirty(d_inode(dentry));
return 0;
}
@@ -1403,7 +1403,7 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,
retval = v9fs_vfs_mkspecial(dir, dentry, P9_DMLINK, name);
__putname(name);
if (!retval) {
- v9fs_refresh_inode(oldfid, old_dentry->d_inode);
+ v9fs_refresh_inode(oldfid, d_inode(old_dentry));
v9fs_invalidate_inode_attr(dir);
}
clunk_fid:
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 6054c16b8fae..9861c7c951a6 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -265,7 +265,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
}
/* Only creates */
- if (!(flags & O_CREAT) || dentry->d_inode)
+ if (!(flags & O_CREAT) || d_really_is_positive(dentry))
return finish_no_open(file, res);
v9ses = v9fs_inode2v9ses(dir);
@@ -481,7 +481,7 @@ v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry);
v9ses = v9fs_dentry2v9ses(dentry);
if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
- generic_fillattr(dentry->d_inode, stat);
+ generic_fillattr(d_inode(dentry), stat);
return 0;
}
fid = v9fs_fid_lookup(dentry);
@@ -496,8 +496,8 @@ v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
if (IS_ERR(st))
return PTR_ERR(st);
- v9fs_stat2inode_dotl(st, dentry->d_inode);
- generic_fillattr(dentry->d_inode, stat);
+ v9fs_stat2inode_dotl(st, d_inode(dentry));
+ generic_fillattr(d_inode(dentry), stat);
/* Change block size to what the server returned */
stat->blksize = st->st_blksize;
@@ -557,7 +557,7 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
int retval;
struct p9_fid *fid;
struct p9_iattr_dotl p9attr;
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = d_inode(dentry);
p9_debug(P9_DEBUG_VFS, "\n");
@@ -795,10 +795,10 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
if (IS_ERR(fid))
return PTR_ERR(fid);
- v9fs_refresh_inode_dotl(fid, old_dentry->d_inode);
+ v9fs_refresh_inode_dotl(fid, d_inode(old_dentry));
}
- ihold(old_dentry->d_inode);
- d_instantiate(dentry, old_dentry->d_inode);
+ ihold(d_inode(old_dentry));
+ d_instantiate(dentry, d_inode(old_dentry));
return err;
}
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 0afd0382822b..e99a338a4638 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -168,8 +168,8 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
retval = PTR_ERR(st);
goto release_sb;
}
- root->d_inode->i_ino = v9fs_qid2ino(&st->qid);
- v9fs_stat2inode_dotl(st, root->d_inode);
+ d_inode(root)->i_ino = v9fs_qid2ino(&st->qid);
+ v9fs_stat2inode_dotl(st, d_inode(root));
kfree(st);
} else {
struct p9_wstat *st = NULL;
@@ -179,8 +179,8 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
goto release_sb;
}
- root->d_inode->i_ino = v9fs_qid2ino(&st->qid);
- v9fs_stat2inode(st, root->d_inode, sb);
+ d_inode(root)->i_ino = v9fs_qid2ino(&st->qid);
+ v9fs_stat2inode(st, d_inode(root), sb);
p9stat_free(st);
kfree(st);
diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c
index f95e01e058e4..0cf44b6cccd6 100644
--- a/fs/9p/xattr.c
+++ b/fs/9p/xattr.c
@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/sched.h>
+#include <linux/uio.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
@@ -25,50 +26,34 @@ ssize_t v9fs_fid_xattr_get(struct p9_fid *fid, const char *name,
void *buffer, size_t buffer_size)
{
ssize_t retval;
- int msize, read_count;
- u64 offset = 0, attr_size;
+ u64 attr_size;
struct p9_fid *attr_fid;
+ struct kvec kvec = {.iov_base = buffer, .iov_len = buffer_size};
+ struct iov_iter to;
+ int err;
+
+ iov_iter_kvec(&to, READ | ITER_KVEC, &kvec, 1, buffer_size);
attr_fid = p9_client_xattrwalk(fid, name, &attr_size);
if (IS_ERR(attr_fid)) {
retval = PTR_ERR(attr_fid);
p9_debug(P9_DEBUG_VFS, "p9_client_attrwalk failed %zd\n",
retval);
- attr_fid = NULL;
- goto error;
- }
- if (!buffer_size) {
- /* request to get the attr_size */
- retval = attr_size;
- goto error;
+ return retval;
}
if (attr_size > buffer_size) {
- retval = -ERANGE;
- goto error;
- }
- msize = attr_fid->clnt->msize;
- while (attr_size) {
- if (attr_size > (msize - P9_IOHDRSZ))
- read_count = msize - P9_IOHDRSZ;
+ if (!buffer_size) /* request to get the attr_size */
+ retval = attr_size;
else
- read_count = attr_size;
- read_count = p9_client_read(attr_fid, ((char *)buffer)+offset,
- NULL, offset, read_count);
- if (read_count < 0) {
- /* error in xattr read */
- retval = read_count;
- goto error;
- }
- offset += read_count;
- attr_size -= read_count;
+ retval = -ERANGE;
+ } else {
+ iov_iter_truncate(&to, attr_size);
+ retval = p9_client_read(attr_fid, 0, &to, &err);
+ if (err)
+ retval = err;
}
- /* Total read xattr bytes */
- retval = offset;
-error:
- if (attr_fid)
- p9_client_clunk(attr_fid);
+ p9_client_clunk(attr_fid);
return retval;
-
}
@@ -120,8 +105,11 @@ int v9fs_xattr_set(struct dentry *dentry, const char *name,
int v9fs_fid_xattr_set(struct p9_fid *fid, const char *name,
const void *value, size_t value_len, int flags)
{
- u64 offset = 0;
- int retval, msize, write_count;
+ struct kvec kvec = {.iov_base = (void *)value, .iov_len = value_len};
+ struct iov_iter from;
+ int retval;
+
+ iov_iter_kvec(&from, WRITE | ITER_KVEC, &kvec, 1, value_len);
p9_debug(P9_DEBUG_VFS, "name = %s value_len = %zu flags = %d\n",
name, value_len, flags);
@@ -135,29 +123,11 @@ int v9fs_fid_xattr_set(struct p9_fid *fid, const char *name,
* On success fid points to xattr
*/
retval = p9_client_xattrcreate(fid, name, value_len, flags);
- if (retval < 0) {
+ if (retval < 0)
p9_debug(P9_DEBUG_VFS, "p9_client_xattrcreate failed %d\n",
retval);
- goto err;
- }
- msize = fid->clnt->msize;
- while (value_len) {
- if (value_len > (msize - P9_IOHDRSZ))
- write_count = msize - P9_IOHDRSZ;
- else
- write_count = value_len;
- write_count = p9_client_write(fid, ((char *)value)+offset,
- NULL, offset, write_count);
- if (write_count < 0) {
- /* error in xattr write */
- retval = write_count;
- goto err;
- }
- offset += write_count;
- value_len -= write_count;
- }
- retval = 0;
-err:
+ else
+ p9_client_write(fid, 0, &from, &retval);
p9_client_clunk(fid);
return retval;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-03 00:26:44 +0300