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[01/12] Btrfs: fix put dio bio twice when we submit dio bio fail

Message ID 1403955302-22396-2-git-send-email-miaox@cn.fujitsu.com (mailing list archive)
State Superseded
Headers show

Commit Message

Miao Xie June 28, 2014, 11:34 a.m. UTC 
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>
---
 fs/btrfs/inode.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
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Patch

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 3668048..a3f102f 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7294,10 +7294,8 @@  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;
@@ -7314,6 +7312,7 @@  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);