From: Jonathan Brassow 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: Jonathan Brassow Signed-off-by: Alasdair G Kergon --- drivers/md/dm-raid1.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6.21/drivers/md/dm-raid1.c =================================================================== --- linux-2.6.21.orig/drivers/md/dm-raid1.c 2007-05-01 19:20:17.000000000 +0100 +++ linux-2.6.21/drivers/md/dm-raid1.c 2007-05-01 19:20:19.000000000 +0100 @@ -741,7 +741,7 @@ static void do_reads(struct mirror_set * /* * 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;