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path: root/fs/xfs/linux-2.6/xfs_file.c
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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_file.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c49
1 files changed, 23 insertions, 26 deletions
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index ba8ad422a165..10b7fb4807a6 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -574,7 +574,7 @@ xfs_file_aio_write(
struct inode *inode = mapping->host;
struct xfs_inode *ip = XFS_I(inode);
struct xfs_mount *mp = ip->i_mount;
- ssize_t ret = 0, error = 0;
+ ssize_t ret = 0;
int ioflags = 0;
xfs_fsize_t isize, new_size;
int iolock;
@@ -590,9 +590,9 @@ xfs_file_aio_write(
if (file->f_mode & FMODE_NOCMTIME)
ioflags |= IO_INVIS;
- error = generic_segment_checks(iovp, &nr_segs, &ocount, VERIFY_READ);
- if (error)
- return error;
+ ret = generic_segment_checks(iovp, &nr_segs, &ocount, VERIFY_READ);
+ if (ret)
+ return ret;
count = ocount;
if (count == 0)
@@ -616,9 +616,9 @@ relock:
xfs_ilock(ip, XFS_ILOCK_EXCL|iolock);
start:
- error = -generic_write_checks(file, &pos, &count,
+ ret = generic_write_checks(file, &pos, &count,
S_ISBLK(inode->i_mode));
- if (error) {
+ if (ret) {
xfs_iunlock(ip, XFS_ILOCK_EXCL|iolock);
goto out_unlock_mutex;
}
@@ -660,8 +660,8 @@ start:
*/
if (pos > ip->i_size) {
- error = xfs_zero_eof(ip, pos, ip->i_size);
- if (error) {
+ ret = -xfs_zero_eof(ip, pos, ip->i_size);
+ if (ret) {
xfs_iunlock(ip, XFS_ILOCK_EXCL);
goto out_unlock_internal;
}
@@ -674,8 +674,8 @@ start:
* by root. This keeps people from modifying setuid and
* setgid binaries.
*/
- error = -file_remove_suid(file);
- if (unlikely(error))
+ ret = file_remove_suid(file);
+ if (unlikely(ret))
goto out_unlock_internal;
/* We can write back this queue in page reclaim */
@@ -684,10 +684,10 @@ start:
if ((ioflags & IO_ISDIRECT)) {
if (mapping->nrpages) {
WARN_ON(need_i_mutex == 0);
- error = xfs_flushinval_pages(ip,
+ ret = -xfs_flushinval_pages(ip,
(pos & PAGE_CACHE_MASK),
-1, FI_REMAPF_LOCKED);
- if (error)
+ if (ret)
goto out_unlock_internal;
}
@@ -720,24 +720,22 @@ start:
}
} else {
int enospc = 0;
- ssize_t ret2 = 0;
write_retry:
trace_xfs_file_buffered_write(ip, count, iocb->ki_pos, ioflags);
- ret2 = generic_file_buffered_write(iocb, iovp, nr_segs,
+ ret = generic_file_buffered_write(iocb, iovp, nr_segs,
pos, &iocb->ki_pos, count, ret);
/*
* if we just got an ENOSPC, flush the inode now we
* aren't holding any page locks and retry *once*
*/
- if (ret2 == -ENOSPC && !enospc) {
- error = xfs_flush_pages(ip, 0, -1, 0, FI_NONE);
- if (error)
+ if (ret == -ENOSPC && !enospc) {
+ ret = xfs_flush_pages(ip, 0, -1, 0, FI_NONE);
+ if (ret)
goto out_unlock_internal;
enospc = 1;
goto write_retry;
}
- ret = ret2;
}
current->backing_dev_info = NULL;
@@ -753,7 +751,6 @@ write_retry:
xfs_iunlock(ip, XFS_ILOCK_EXCL);
}
- error = -ret;
if (ret <= 0)
goto out_unlock_internal;
@@ -762,23 +759,23 @@ write_retry:
/* Handle various SYNC-type writes */
if ((file->f_flags & O_DSYNC) || IS_SYNC(inode)) {
loff_t end = pos + ret - 1;
- int error2;
+ int error, error2;
xfs_iunlock(ip, iolock);
if (need_i_mutex)
mutex_unlock(&inode->i_mutex);
- error2 = filemap_write_and_wait_range(mapping, pos, end);
- if (!error)
- error = error2;
+ error = filemap_write_and_wait_range(mapping, pos, end);
if (need_i_mutex)
mutex_lock(&inode->i_mutex);
xfs_ilock(ip, iolock);
error2 = -xfs_file_fsync(file,
(file->f_flags & __O_SYNC) ? 0 : 1);
- if (!error)
- error = error2;
+ if (error)
+ ret = error;
+ else if (error2)
+ ret = error2;
}
out_unlock_internal:
@@ -800,7 +797,7 @@ write_retry:
out_unlock_mutex:
if (need_i_mutex)
mutex_unlock(&inode->i_mutex);
- return -error;
+ return ret;
}
STATIC int