From: Zhao Lei <zhao...@cn.fujitsu.com>
stripe_index's value was set again in latter line:
stripe_index = 0;
Signed-off-by: Zhao Lei <zhao...@cn.fujitsu.com>
Signed-off-by: Miao Xie <mi...@cn.fujitsu.com>
Reviewed-by: David Sterba <dste...@suse.cz>
---
Changelog v1 -> v3:
- None.
---
fs/btrfs/volumes.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 41b0dff..66d5035 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -5167,9 +5167,7 @@ static int __btrfs_map_block(struct btrfs_fs_info
*fs_info, int rw,
/* push stripe_nr back to the start of the full stripe
*/
stripe_nr = raid56_full_stripe_start;
- do_div(stripe_nr, stripe_len);
-
- stripe_index = do_div(stripe_nr, nr_data_stripes(map));
+ do_div(stripe_nr, stripe_len * nr_data_stripes(map));
/* RAID[56] write or recovery. Return all stripes */
num_stripes = map->num_stripes;
--
1.9.3
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