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Btrfs: fix wrong failed mirror_num of read-repair on raid56

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In raid56 scenario, 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]>
Reviewed-by: David Sterba <[email protected]>
Signed-off-by: David Sterba <[email protected]>
This commit is contained in:
Liu Bo 2017-03-29 10:54:26 -07:00 • committed by David Sterba
commit abad60c601
1 changed files with 5 additions and 0 deletions
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5
fs/btrfs/raid56.c
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@ -2117,6 +2117,11 @@ int raid56_parity_recover(struct btrfs_fs_info *fs_info, struct bio *bio,
struct btrfs_raid_bio *rbio;
int ret;
if (generic_io) {
ASSERT(bbio->mirror_num == mirror_num);
btrfs_io_bio(bio)->mirror_num = mirror_num;
}
rbio = alloc_rbio(fs_info, bbio, stripe_len);
if (IS_ERR(rbio)) {
if (generic_io)