bio: move the slab pointer inside the bio_set
In preparation for adding differently sized bios.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fs/bio.c b/fs/bio.c
index eb6b468..1ab8986 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1404,12 +1404,15 @@
struct bio_set *bioset_create(int bio_pool_size, int bvec_pool_size)
{
- struct bio_set *bs = kzalloc(sizeof(*bs), GFP_KERNEL);
+ struct bio_set *bs;
+ bs = kzalloc(sizeof(*bs), GFP_KERNEL);
if (!bs)
return NULL;
- bs->bio_pool = mempool_create_slab_pool(bio_pool_size, bio_slab);
+ bs->bio_slab = bio_slab;
+
+ bs->bio_pool = mempool_create_slab_pool(bio_pool_size, bs->bio_slab);
if (!bs->bio_pool)
goto bad;
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d76e4bf..9340098 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -400,6 +400,7 @@
#define BIOVEC_MAX_IDX (BIOVEC_NR_POOLS - 1)
struct bio_set {
+ struct kmem_cache *bio_slab;
mempool_t *bio_pool;
#if defined(CONFIG_BLK_DEV_INTEGRITY)
mempool_t *bio_integrity_pool;