Commit 580c6efa authored by Liu Bo's avatar Liu Bo Committed by David Sterba

Btrfs: replace: cache rbio when rebuild data on missing device

Rebuild on missing device is as same as recover, after it's done, rbio
has data which is consistent with on-disk data, so it can be cached to
avoid further reads.
Signed-off-by: default avatarLiu Bo <bo.li.liu@oracle.com>
Signed-off-by: default avatarLiu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 8a5a916d
......@@ -1987,7 +1987,13 @@ static void __raid_recover_end_io(struct btrfs_raid_bio *rbio)
kfree(pointers);
cleanup_io:
if (rbio->operation == BTRFS_RBIO_READ_REBUILD) {
/*
* Similar to READ_REBUILD, REBUILD_MISSING at this point also has a
* valid rbio which is consistent with ondisk content, thus such a
* valid rbio can be cached to avoid further disk reads.
*/
if (rbio->operation == BTRFS_RBIO_READ_REBUILD ||
rbio->operation == BTRFS_RBIO_REBUILD_MISSING) {
/*
* - In case of two failures, where rbio->failb != -1:
*
......@@ -2008,8 +2014,6 @@ static void __raid_recover_end_io(struct btrfs_raid_bio *rbio)
else
clear_bit(RBIO_CACHE_READY_BIT, &rbio->flags);
rbio_orig_end_io(rbio, err);
} else if (rbio->operation == BTRFS_RBIO_REBUILD_MISSING) {
rbio_orig_end_io(rbio, err);
} else if (err == BLK_STS_OK) {
rbio->faila = -1;
......
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