From: NeilBrown Date: Tue, 29 Aug 2017 22:10:18 +0000 (+1000) Subject: dm crypt: remove BIOSET_NEED_RESCUER flag X-Git-Tag: v4.19~1720^2~51 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=80cd17578310dbaf880ae0db9240ad2218c5811a;p=platform%2Fkernel%2Flinux-rpi3.git 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 --- diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 9fc12f5..9c53367 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;