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Commit b997b82d authored by Jonathan Brassow's avatar Jonathan Brassow Committed by Linus Torvalds
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dm raid1: switch rh_in_sync to blocking in do_reads 



The call to rh_in_sync() in do_reads() should be allowed to block.  It is in
the mirror worker thread which already permits blocking operations.  This will
be needed to support clustered mirroring which will perform network
operations.

Signed-off-by: default avatarJonathan Brassow <jbrassow@redhat.com>
Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f5353cd7

drivers/md/dm-raid1.c

+1 −1
Original line number Diff line number Diff line
@@ -741,7 +741,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads) 
		/*

		 * We can only read balance if the region is in sync.

		 */

		if (rh_in_sync(&ms->rh, region, 0))

		if (rh_in_sync(&ms->rh, region, 1))

			m = choose_mirror(ms, bio->bi_sector);

		else

			m = ms->default_mirror;