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block: Use bioset_init() for fs_bio_set

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Minor optimization - remove a pointer indirection when using fs_bio_set.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Kent Overstreet 2018-05-08 21:33:52 -04:00 committed by Jens Axboe
parent 917a38c71a
commit f4f8154a08
4 changed files with 7 additions and 8 deletions
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7
block/bio.c
View File

@ -53,7 +53,7 @@ static struct biovec_slab bvec_slabs[BVEC_POOL_NR] __read_mostly = {
* fs_bio_set is the bio_set containing bio and iovec memory pools used by * fs_bio_set is the bio_set containing bio and iovec memory pools used by
* IO code that does not need private memory pools. * IO code that does not need private memory pools.
*/ */
struct bio_set *fs_bio_set; struct bio_set fs_bio_set;
EXPORT_SYMBOL(fs_bio_set); EXPORT_SYMBOL(fs_bio_set);
/* /*
@ -2055,11 +2055,10 @@ static int __init init_bio(void)
bio_integrity_init(); bio_integrity_init();
biovec_init_slabs(); biovec_init_slabs();
fs_bio_set = bioset_create(BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS); if (bioset_init(&fs_bio_set, BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS))
if (!fs_bio_set)
panic("bio: can't allocate bios\n"); panic("bio: can't allocate bios\n");
if (bioset_integrity_create(fs_bio_set, BIO_POOL_SIZE)) if (bioset_integrity_create(&fs_bio_set, BIO_POOL_SIZE))
panic("bio: can't create integrity pool\n"); panic("bio: can't create integrity pool\n");
return 0; return 0;

2
block/blk-core.c
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@ -3511,7 +3511,7 @@ int blk_rq_prep_clone(struct request *rq, struct request *rq_src,
struct bio *bio, *bio_src; struct bio *bio, *bio_src;
if (!bs) if (!bs)
bs = fs_bio_set; bs = &fs_bio_set;
__rq_for_each_bio(bio_src, rq_src) { __rq_for_each_bio(bio_src, rq_src) {
bio = bio_clone_fast(bio_src, gfp_mask, bs); bio = bio_clone_fast(bio_src, gfp_mask, bs);

2
drivers/target/target_core_iblock.c
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@ -164,7 +164,7 @@ static int iblock_configure_device(struct se_device *dev)
goto out_blkdev_put; goto out_blkdev_put;
} }
pr_debug("IBLOCK setup BIP bs->bio_integrity_pool: %p\n", pr_debug("IBLOCK setup BIP bs->bio_integrity_pool: %p\n",
bs->bio_integrity_pool); &bs->bio_integrity_pool);
} }
dev->dev_attrib.hw_pi_prot_type = dev->dev_attrib.pi_prot_type; dev->dev_attrib.hw_pi_prot_type = dev->dev_attrib.pi_prot_type;
} }

4
include/linux/bio.h
View File

@ -423,11 +423,11 @@ extern void __bio_clone_fast(struct bio *, struct bio *);
extern struct bio *bio_clone_fast(struct bio *, gfp_t, struct bio_set *); extern struct bio *bio_clone_fast(struct bio *, gfp_t, struct bio_set *);
extern struct bio *bio_clone_bioset(struct bio *, gfp_t, struct bio_set *bs); extern struct bio *bio_clone_bioset(struct bio *, gfp_t, struct bio_set *bs);
extern struct bio_set *fs_bio_set; extern struct bio_set fs_bio_set;
static inline struct bio *bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs) static inline struct bio *bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs)
{ {
return bio_alloc_bioset(gfp_mask, nr_iovecs, fs_bio_set); return bio_alloc_bioset(gfp_mask, nr_iovecs, &fs_bio_set);
} }
static inline struct bio *bio_kmalloc(gfp_t gfp_mask, unsigned int nr_iovecs) static inline struct bio *bio_kmalloc(gfp_t gfp_mask, unsigned int nr_iovecs)