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 <neilb@xxxxxxxx>
---
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 cdf6b1e12460..e7dc1a6b5a9d 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -2696,8 +2696,7 @@ 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;
--
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