From 80cd17578310dbaf880ae0db9240ad2218c5811a Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 30 Aug 2017 08:10:18 +1000 Subject: [PATCH] dm crypt: remove BIOSET_NEED_RESCUER flag The BIOSET_NEED_RESCUER flag is only needed when a make_request_fn might do two allocations from the one bioset, and the second one could block until the first bio completes. dm-crypt does allocate from this bioset inside the dm make_request_fn, but does so using GFP_NOWAIT so that the allocation will not block. So BIOSET_NEED_RESCUER is not needed. Signed-off-by: NeilBrown Signed-off-by: Mike Snitzer --- drivers/md/dm-crypt.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 9fc12f556534..9c53367d2f3e 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -2697,8 +2697,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto bad; } - cc->bs = bioset_create(MIN_IOS, 0, (BIOSET_NEED_BVECS | - BIOSET_NEED_RESCUER)); + cc->bs = bioset_create(MIN_IOS, 0, BIOSET_NEED_BVECS); if (!cc->bs) { ti->error = "Cannot allocate crypt bioset"; goto bad; -- GitLab