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authorMiao Xie <miaox@cn.fujitsu.com>2014-06-17 18:58:59 +0800
committerChris Mason <clm@fb.com>2014-08-19 08:36:24 -0700
commit7a5c3c9be1059feed0e470c6dc0994dcaed4f12c (patch)
tree4db44a245a5dfdd21c84d31f7b8dfaace72ef34e /fs/btrfs
parent8d875f95da43c6a8f18f77869f2ef26e9594fecc (diff)
Btrfs: fix put dio bio twice when we submit dio bio fail
The caller of btrfs_submit_direct_hook() will put the original dio bio when btrfs_submit_direct_hook() return a error number, so we needn't put the original bio in btrfs_submit_direct_hook(). Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/inode.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 73098328d040..33c05188cbf0 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7306,10 +7306,8 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
map_length = orig_bio->bi_iter.bi_size;
ret = btrfs_map_block(root->fs_info, rw, start_sector << 9,
&map_length, NULL, 0);
- if (ret) {
- bio_put(orig_bio);
+ if (ret)
return -EIO;
- }
if (map_length >= orig_bio->bi_iter.bi_size) {
bio = orig_bio;
@@ -7326,6 +7324,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
bio = btrfs_dio_bio_alloc(orig_bio->bi_bdev, start_sector, GFP_NOFS);
if (!bio)
return -ENOMEM;
+
bio->bi_private = dip;
bio->bi_end_io = btrfs_end_dio_bio;
atomic_inc(&dip->pending_bios);