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Btrfs: remove redundant check in rbio_can_merge 

Given the above
'
if (last->operation != cur->operation)
	return 0;
',
it's guaranteed that two operations are same.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Liu Bo 2017-12-04 15:40:35 -07:00 committed by David Sterba
parent 05a5c55dfc
commit db34be19c4
1 changed files with 2 additions and 4 deletions
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6
fs/btrfs/raid56.c
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@ -594,12 +594,10 @@ static int rbio_can_merge(struct btrfs_raid_bio *last,
* bio list here, anyone else that wants to * bio list here, anyone else that wants to
* change this stripe needs to do their own rmw. * change this stripe needs to do their own rmw.
*/ */
if (last->operation == BTRFS_RBIO_PARITY_SCRUB || if (last->operation == BTRFS_RBIO_PARITY_SCRUB)
cur->operation == BTRFS_RBIO_PARITY_SCRUB)
return 0; return 0;
if (last->operation == BTRFS_RBIO_REBUILD_MISSING || if (last->operation == BTRFS_RBIO_REBUILD_MISSING)
cur->operation == BTRFS_RBIO_REBUILD_MISSING)
return 0; return 0;
return 1; return 1;