In raid56 senario, after trying parity recovery, we didn't set mirror_num for btrfs_bio with failed mirror_num, hence end_bio_extent_readpage() will report a random mirror_num in dmesg log.
Cc: David Sterba <[email protected]> Signed-off-by: Liu Bo <[email protected]> --- fs/btrfs/volumes.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 73d56ee..be64e4a 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -6197,6 +6197,7 @@ int btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio, } else { ret = raid56_parity_recover(fs_info, bio, bbio, map_length, mirror_num, 1); + btrfs_io_bio(bio)->mirror_num = mirror_num; } btrfs_bio_counter_dec(fs_info); -- 2.5.5 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
