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author | Martin K. Petersen <martin.petersen@oracle.com> | 2008-06-17 16:59:56 (GMT) |
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committer | Jens Axboe <jens.axboe@oracle.com> | 2008-07-03 11:21:13 (GMT) |
commit | 51d654e1d885607a6edd02b337105fa5c28b6d33 (patch) | |
tree | 64e87fa9b3b28cb10be635cf4edc76ccf39befe1 /fs/bio.c | |
parent | a144ff09bc52ef3f3684ed23eadc9c7c0e57b3aa (diff) | |
download | linux-fsl-qoriq-51d654e1d885607a6edd02b337105fa5c28b6d33.tar.xz |
block: Globalize bio_set and bio_vec_slab
Move struct bio_set and biovec_slab definitions to bio.h so they can
be used outside of bio.c.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/bio.c')
-rw-r--r-- | fs/bio.c | 30 |
1 files changed, 2 insertions, 28 deletions
@@ -28,25 +28,10 @@ #include <linux/blktrace_api.h> #include <scsi/sg.h> /* for struct sg_iovec */ -#define BIO_POOL_SIZE 2 - static struct kmem_cache *bio_slab __read_mostly; -#define BIOVEC_NR_POOLS 6 - -/* - * a small number of entries is fine, not going to be performance critical. - * basically we just need to survive - */ -#define BIO_SPLIT_ENTRIES 2 mempool_t *bio_split_pool __read_mostly; -struct biovec_slab { - int nr_vecs; - char *name; - struct kmem_cache *slab; -}; - /* * if you change this list, also change bvec_alloc or things will * break badly! cannot be bigger than what you can fit into an @@ -60,23 +45,12 @@ static struct biovec_slab bvec_slabs[BIOVEC_NR_POOLS] __read_mostly = { #undef BV /* - * bio_set is used to allow other portions of the IO system to - * allocate their own private memory pools for bio and iovec structures. - * These memory pools in turn all allocate from the bio_slab - * and the bvec_slabs[]. - */ -struct bio_set { - mempool_t *bio_pool; - mempool_t *bvec_pools[BIOVEC_NR_POOLS]; -}; - -/* * fs_bio_set is the bio_set containing bio and iovec memory pools used by * IO code that does not need private memory pools. */ -static struct bio_set *fs_bio_set; +struct bio_set *fs_bio_set; -static inline struct bio_vec *bvec_alloc_bs(gfp_t gfp_mask, int nr, unsigned long *idx, struct bio_set *bs) +struct bio_vec *bvec_alloc_bs(gfp_t gfp_mask, int nr, unsigned long *idx, struct bio_set *bs) { struct bio_vec *bvl; |