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block: Convert bio_set to mempool_init()
Minor performance improvement by getting rid of pointer indirections from allocation/freeing fastpaths. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
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c1a67fefd0
commit
8aa6ba2f6e
@ -56,12 +56,12 @@ struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
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struct bio_set *bs = bio->bi_pool;
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unsigned inline_vecs;
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if (!bs || !bs->bio_integrity_pool) {
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if (!bs || !mempool_initialized(&bs->bio_integrity_pool)) {
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bip = kmalloc(sizeof(struct bio_integrity_payload) +
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sizeof(struct bio_vec) * nr_vecs, gfp_mask);
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inline_vecs = nr_vecs;
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} else {
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bip = mempool_alloc(bs->bio_integrity_pool, gfp_mask);
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bip = mempool_alloc(&bs->bio_integrity_pool, gfp_mask);
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inline_vecs = BIP_INLINE_VECS;
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}
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@ -74,7 +74,7 @@ struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
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unsigned long idx = 0;
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bip->bip_vec = bvec_alloc(gfp_mask, nr_vecs, &idx,
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bs->bvec_integrity_pool);
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&bs->bvec_integrity_pool);
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if (!bip->bip_vec)
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goto err;
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bip->bip_max_vcnt = bvec_nr_vecs(idx);
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@ -90,7 +90,7 @@ struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
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return bip;
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err:
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mempool_free(bip, bs->bio_integrity_pool);
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mempool_free(bip, &bs->bio_integrity_pool);
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return ERR_PTR(-ENOMEM);
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}
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EXPORT_SYMBOL(bio_integrity_alloc);
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@ -111,10 +111,10 @@ static void bio_integrity_free(struct bio *bio)
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kfree(page_address(bip->bip_vec->bv_page) +
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bip->bip_vec->bv_offset);
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if (bs && bs->bio_integrity_pool) {
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bvec_free(bs->bvec_integrity_pool, bip->bip_vec, bip->bip_slab);
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if (bs && mempool_initialized(&bs->bio_integrity_pool)) {
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bvec_free(&bs->bvec_integrity_pool, bip->bip_vec, bip->bip_slab);
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mempool_free(bip, bs->bio_integrity_pool);
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mempool_free(bip, &bs->bio_integrity_pool);
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} else {
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kfree(bip);
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}
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@ -465,16 +465,15 @@ EXPORT_SYMBOL(bio_integrity_clone);
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int bioset_integrity_create(struct bio_set *bs, int pool_size)
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{
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if (bs->bio_integrity_pool)
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if (mempool_initialized(&bs->bio_integrity_pool))
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return 0;
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bs->bio_integrity_pool = mempool_create_slab_pool(pool_size, bip_slab);
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if (!bs->bio_integrity_pool)
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if (mempool_init_slab_pool(&bs->bio_integrity_pool,
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pool_size, bip_slab))
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return -1;
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bs->bvec_integrity_pool = biovec_create_pool(pool_size);
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if (!bs->bvec_integrity_pool) {
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mempool_destroy(bs->bio_integrity_pool);
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if (biovec_init_pool(&bs->bvec_integrity_pool, pool_size)) {
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mempool_exit(&bs->bio_integrity_pool);
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return -1;
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}
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@ -484,8 +483,8 @@ EXPORT_SYMBOL(bioset_integrity_create);
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void bioset_integrity_free(struct bio_set *bs)
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{
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mempool_destroy(bs->bio_integrity_pool);
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mempool_destroy(bs->bvec_integrity_pool);
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mempool_exit(&bs->bio_integrity_pool);
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mempool_exit(&bs->bvec_integrity_pool);
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}
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EXPORT_SYMBOL(bioset_integrity_free);
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36
block/bio.c
36
block/bio.c
@ -254,7 +254,7 @@ static void bio_free(struct bio *bio)
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bio_uninit(bio);
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if (bs) {
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bvec_free(bs->bvec_pool, bio->bi_io_vec, BVEC_POOL_IDX(bio));
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bvec_free(&bs->bvec_pool, bio->bi_io_vec, BVEC_POOL_IDX(bio));
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/*
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* If we have front padding, adjust the bio pointer before freeing
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@ -262,7 +262,7 @@ static void bio_free(struct bio *bio)
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p = bio;
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p -= bs->front_pad;
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mempool_free(p, bs->bio_pool);
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mempool_free(p, &bs->bio_pool);
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} else {
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/* Bio was allocated by bio_kmalloc() */
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kfree(bio);
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@ -454,7 +454,8 @@ struct bio *bio_alloc_bioset(gfp_t gfp_mask, unsigned int nr_iovecs,
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inline_vecs = nr_iovecs;
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} else {
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/* should not use nobvec bioset for nr_iovecs > 0 */
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if (WARN_ON_ONCE(!bs->bvec_pool && nr_iovecs > 0))
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if (WARN_ON_ONCE(!mempool_initialized(&bs->bvec_pool) &&
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nr_iovecs > 0))
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return NULL;
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/*
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* generic_make_request() converts recursion to iteration; this
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@ -483,11 +484,11 @@ struct bio *bio_alloc_bioset(gfp_t gfp_mask, unsigned int nr_iovecs,
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bs->rescue_workqueue)
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gfp_mask &= ~__GFP_DIRECT_RECLAIM;
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p = mempool_alloc(bs->bio_pool, gfp_mask);
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p = mempool_alloc(&bs->bio_pool, gfp_mask);
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if (!p && gfp_mask != saved_gfp) {
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punt_bios_to_rescuer(bs);
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gfp_mask = saved_gfp;
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p = mempool_alloc(bs->bio_pool, gfp_mask);
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p = mempool_alloc(&bs->bio_pool, gfp_mask);
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}
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front_pad = bs->front_pad;
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@ -503,11 +504,11 @@ struct bio *bio_alloc_bioset(gfp_t gfp_mask, unsigned int nr_iovecs,
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if (nr_iovecs > inline_vecs) {
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unsigned long idx = 0;
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bvl = bvec_alloc(gfp_mask, nr_iovecs, &idx, bs->bvec_pool);
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bvl = bvec_alloc(gfp_mask, nr_iovecs, &idx, &bs->bvec_pool);
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if (!bvl && gfp_mask != saved_gfp) {
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punt_bios_to_rescuer(bs);
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gfp_mask = saved_gfp;
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bvl = bvec_alloc(gfp_mask, nr_iovecs, &idx, bs->bvec_pool);
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bvl = bvec_alloc(gfp_mask, nr_iovecs, &idx, &bs->bvec_pool);
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}
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if (unlikely(!bvl))
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@ -524,7 +525,7 @@ struct bio *bio_alloc_bioset(gfp_t gfp_mask, unsigned int nr_iovecs,
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return bio;
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err_free:
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mempool_free(p, bs->bio_pool);
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mempool_free(p, &bs->bio_pool);
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return NULL;
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}
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EXPORT_SYMBOL(bio_alloc_bioset);
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@ -1848,11 +1849,11 @@ EXPORT_SYMBOL_GPL(bio_trim);
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* create memory pools for biovec's in a bio_set.
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* use the global biovec slabs created for general use.
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*/
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mempool_t *biovec_create_pool(int pool_entries)
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int biovec_init_pool(mempool_t *pool, int pool_entries)
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{
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struct biovec_slab *bp = bvec_slabs + BVEC_POOL_MAX;
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return mempool_create_slab_pool(pool_entries, bp->slab);
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return mempool_init_slab_pool(pool, pool_entries, bp->slab);
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}
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void bioset_free(struct bio_set *bs)
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@ -1860,8 +1861,8 @@ void bioset_free(struct bio_set *bs)
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if (bs->rescue_workqueue)
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destroy_workqueue(bs->rescue_workqueue);
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mempool_destroy(bs->bio_pool);
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mempool_destroy(bs->bvec_pool);
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mempool_exit(&bs->bio_pool);
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mempool_exit(&bs->bvec_pool);
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bioset_integrity_free(bs);
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bio_put_slab(bs);
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@ -1913,15 +1914,12 @@ struct bio_set *bioset_create(unsigned int pool_size,
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return NULL;
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}
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bs->bio_pool = mempool_create_slab_pool(pool_size, bs->bio_slab);
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if (!bs->bio_pool)
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if (mempool_init_slab_pool(&bs->bio_pool, pool_size, bs->bio_slab))
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goto bad;
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if (flags & BIOSET_NEED_BVECS) {
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bs->bvec_pool = biovec_create_pool(pool_size);
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if (!bs->bvec_pool)
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goto bad;
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}
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if ((flags & BIOSET_NEED_BVECS) &&
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biovec_init_pool(&bs->bvec_pool, pool_size))
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goto bad;
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if (!(flags & BIOSET_NEED_RESCUER))
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return bs;
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@ -412,7 +412,7 @@ enum {
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BIOSET_NEED_RESCUER = BIT(1),
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};
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extern void bioset_free(struct bio_set *);
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extern mempool_t *biovec_create_pool(int pool_entries);
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extern int biovec_init_pool(mempool_t *pool, int pool_entries);
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extern struct bio *bio_alloc_bioset(gfp_t, unsigned int, struct bio_set *);
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extern void bio_put(struct bio *);
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@ -722,11 +722,11 @@ struct bio_set {
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struct kmem_cache *bio_slab;
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unsigned int front_pad;
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mempool_t *bio_pool;
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mempool_t *bvec_pool;
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mempool_t bio_pool;
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mempool_t bvec_pool;
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#if defined(CONFIG_BLK_DEV_INTEGRITY)
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mempool_t *bio_integrity_pool;
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mempool_t *bvec_integrity_pool;
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mempool_t bio_integrity_pool;
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mempool_t bvec_integrity_pool;
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#endif
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/*
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