diff options
| author | NeilBrown <neilb@suse.com> | 2017-08-30 00:10:18 +0200 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2017-12-13 18:15:56 +0100 |
| commit | c110a4b6e603ece6134fe436e84957f7a4cd099e (patch) | |
| tree | 5b3998ca35e9975081b2ad0c9f03b40d0b6893b0 /drivers/md/dm-io.c | |
| parent | dm crypt: remove BIOSET_NEED_RESCUER flag (diff) | |
| download | linux-c110a4b6e603ece6134fe436e84957f7a4cd099e.tar.xz linux-c110a4b6e603ece6134fe436e84957f7a4cd099e.zip | |
dm io: remove BIOSET_NEED_RESCUER flag from bios bioset
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_io() is called from make_request_fn() context. The closest it comes
to multiple allocations is in chunk_io() in dm-snap-persistent. But
there the code uses a separate thread to avoid problems.
So BIOSET_NEED_RESCUER is not needed.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-io.c')
| -rw-r--r-- | drivers/md/dm-io.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index b4357ed4d541..a8d914d5abbe 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -58,8 +58,7 @@ struct dm_io_client *dm_io_client_create(void) if (!client->pool) goto bad; - client->bios = bioset_create(min_ios, 0, (BIOSET_NEED_BVECS | - BIOSET_NEED_RESCUER)); + client->bios = bioset_create(min_ios, 0, BIOSET_NEED_BVECS); if (!client->bios) goto bad; |