redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

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 <neilb@suse.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
hifive-unleashed-5.1
NeilBrown 2017-08-30 08:10:18 +10:00 committed by Mike Snitzer
parent c06b3e5837
commit 80cd175783
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/md/dm-crypt.c
View File

@ -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;