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authorKent Overstreet <kent.overstreet@gmail.com>2018-05-08 21:33:50 -0400
committerJens Axboe <axboe@kernel.dk>2018-05-14 13:16:03 -0600
commit8aa6ba2f6e3deaff70e517e3cfbf38d1105f9d4f (patch)
treea2b42e3b8fb2f7671a08c6e0a63d1dd6752f1765 /block/bio-integrity.c
parentc1a67fefd0546a5552289c65fe31b1d60e64b643 (diff)
downloadlinux-8aa6ba2f6e3deaff70e517e3cfbf38d1105f9d4f.tar.bz2
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>
Diffstat (limited to 'block/bio-integrity.c')
-rw-r--r--block/bio-integrity.c29
1 files changed, 14 insertions, 15 deletions
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index 9cfdd6c83b5b..add7c7c85335 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -56,12 +56,12 @@ struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
struct bio_set *bs = bio->bi_pool;
unsigned inline_vecs;
- if (!bs || !bs->bio_integrity_pool) {
+ if (!bs || !mempool_initialized(&bs->bio_integrity_pool)) {
bip = kmalloc(sizeof(struct bio_integrity_payload) +
sizeof(struct bio_vec) * nr_vecs, gfp_mask);
inline_vecs = nr_vecs;
} else {
- bip = mempool_alloc(bs->bio_integrity_pool, gfp_mask);
+ bip = mempool_alloc(&bs->bio_integrity_pool, gfp_mask);
inline_vecs = BIP_INLINE_VECS;
}
@@ -74,7 +74,7 @@ struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
unsigned long idx = 0;
bip->bip_vec = bvec_alloc(gfp_mask, nr_vecs, &idx,
- bs->bvec_integrity_pool);
+ &bs->bvec_integrity_pool);
if (!bip->bip_vec)
goto err;
bip->bip_max_vcnt = bvec_nr_vecs(idx);
@@ -90,7 +90,7 @@ struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
return bip;
err:
- mempool_free(bip, bs->bio_integrity_pool);
+ mempool_free(bip, &bs->bio_integrity_pool);
return ERR_PTR(-ENOMEM);
}
EXPORT_SYMBOL(bio_integrity_alloc);
@@ -111,10 +111,10 @@ static void bio_integrity_free(struct bio *bio)
kfree(page_address(bip->bip_vec->bv_page) +
bip->bip_vec->bv_offset);
- if (bs && bs->bio_integrity_pool) {
- bvec_free(bs->bvec_integrity_pool, bip->bip_vec, bip->bip_slab);
+ if (bs && mempool_initialized(&bs->bio_integrity_pool)) {
+ bvec_free(&bs->bvec_integrity_pool, bip->bip_vec, bip->bip_slab);
- mempool_free(bip, bs->bio_integrity_pool);
+ mempool_free(bip, &bs->bio_integrity_pool);
} else {
kfree(bip);
}
@@ -465,16 +465,15 @@ EXPORT_SYMBOL(bio_integrity_clone);
int bioset_integrity_create(struct bio_set *bs, int pool_size)
{
- if (bs->bio_integrity_pool)
+ if (mempool_initialized(&bs->bio_integrity_pool))
return 0;
- bs->bio_integrity_pool = mempool_create_slab_pool(pool_size, bip_slab);
- if (!bs->bio_integrity_pool)
+ if (mempool_init_slab_pool(&bs->bio_integrity_pool,
+ pool_size, bip_slab))
return -1;
- bs->bvec_integrity_pool = biovec_create_pool(pool_size);
- if (!bs->bvec_integrity_pool) {
- mempool_destroy(bs->bio_integrity_pool);
+ if (biovec_init_pool(&bs->bvec_integrity_pool, pool_size)) {
+ mempool_exit(&bs->bio_integrity_pool);
return -1;
}
@@ -484,8 +483,8 @@ EXPORT_SYMBOL(bioset_integrity_create);
void bioset_integrity_free(struct bio_set *bs)
{
- mempool_destroy(bs->bio_integrity_pool);
- mempool_destroy(bs->bvec_integrity_pool);
+ mempool_exit(&bs->bio_integrity_pool);
+ mempool_exit(&bs->bvec_integrity_pool);
}
EXPORT_SYMBOL(bioset_integrity_free);