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-rw-r--r--fs/btrfs/file.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index e354c33df08..c1faded5fca 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1047,8 +1047,14 @@ out:
if ((file->f_flags & O_DSYNC) || IS_SYNC(inode)) {
trans = btrfs_start_transaction(root, 0);
+ if (IS_ERR(trans)) {
+ num_written = PTR_ERR(trans);
+ goto done;
+ }
+ mutex_lock(&inode->i_mutex);
ret = btrfs_log_dentry_safe(trans, root,
file->f_dentry);
+ mutex_unlock(&inode->i_mutex);
if (ret == 0) {
ret = btrfs_sync_log(trans, root);
if (ret == 0)
@@ -1067,6 +1073,7 @@ out:
(start_pos + num_written - 1) >> PAGE_CACHE_SHIFT);
}
}
+done:
current->backing_dev_info = NULL;
return num_written ? num_written : err;
}