drbd: convert to bioset_init()/mempool_init()
Convert drbd to embedded bio sets and mempools. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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338aa96d56
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0892fac871
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@ -977,7 +977,7 @@ static void drbd_bm_endio(struct bio *bio)
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bm_page_unlock_io(device, idx);
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if (ctx->flags & BM_AIO_COPY_PAGES)
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mempool_free(bio->bi_io_vec[0].bv_page, drbd_md_io_page_pool);
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mempool_free(bio->bi_io_vec[0].bv_page, &drbd_md_io_page_pool);
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bio_put(bio);
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@ -1014,7 +1014,7 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho
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bm_set_page_unchanged(b->bm_pages[page_nr]);
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if (ctx->flags & BM_AIO_COPY_PAGES) {
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page = mempool_alloc(drbd_md_io_page_pool,
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page = mempool_alloc(&drbd_md_io_page_pool,
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GFP_NOIO | __GFP_HIGHMEM);
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copy_highpage(page, b->bm_pages[page_nr]);
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bm_store_page_idx(page, page_nr);
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@ -1405,8 +1405,8 @@ extern struct kmem_cache *drbd_request_cache;
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extern struct kmem_cache *drbd_ee_cache; /* peer requests */
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extern struct kmem_cache *drbd_bm_ext_cache; /* bitmap extents */
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extern struct kmem_cache *drbd_al_ext_cache; /* activity log extents */
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extern mempool_t *drbd_request_mempool;
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extern mempool_t *drbd_ee_mempool;
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extern mempool_t drbd_request_mempool;
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extern mempool_t drbd_ee_mempool;
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/* drbd's page pool, used to buffer data received from the peer,
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* or data requested by the peer.
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@ -1432,16 +1432,16 @@ extern wait_queue_head_t drbd_pp_wait;
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* 128 should be plenty, currently we probably can get away with as few as 1.
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*/
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#define DRBD_MIN_POOL_PAGES 128
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extern mempool_t *drbd_md_io_page_pool;
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extern mempool_t drbd_md_io_page_pool;
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/* We also need to make sure we get a bio
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* when we need it for housekeeping purposes */
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extern struct bio_set *drbd_md_io_bio_set;
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extern struct bio_set drbd_md_io_bio_set;
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/* to allocate from that set */
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extern struct bio *bio_alloc_drbd(gfp_t gfp_mask);
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/* And a bio_set for cloning */
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extern struct bio_set *drbd_io_bio_set;
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extern struct bio_set drbd_io_bio_set;
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extern struct mutex resources_mutex;
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@ -124,11 +124,11 @@ struct kmem_cache *drbd_request_cache;
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struct kmem_cache *drbd_ee_cache; /* peer requests */
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struct kmem_cache *drbd_bm_ext_cache; /* bitmap extents */
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struct kmem_cache *drbd_al_ext_cache; /* activity log extents */
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mempool_t *drbd_request_mempool;
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mempool_t *drbd_ee_mempool;
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mempool_t *drbd_md_io_page_pool;
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struct bio_set *drbd_md_io_bio_set;
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struct bio_set *drbd_io_bio_set;
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mempool_t drbd_request_mempool;
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mempool_t drbd_ee_mempool;
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mempool_t drbd_md_io_page_pool;
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struct bio_set drbd_md_io_bio_set;
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struct bio_set drbd_io_bio_set;
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/* I do not use a standard mempool, because:
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1) I want to hand out the pre-allocated objects first.
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@ -153,10 +153,10 @@ struct bio *bio_alloc_drbd(gfp_t gfp_mask)
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{
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struct bio *bio;
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if (!drbd_md_io_bio_set)
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if (!bioset_initialized(&drbd_md_io_bio_set))
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return bio_alloc(gfp_mask, 1);
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bio = bio_alloc_bioset(gfp_mask, 1, drbd_md_io_bio_set);
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bio = bio_alloc_bioset(gfp_mask, 1, &drbd_md_io_bio_set);
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if (!bio)
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return NULL;
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return bio;
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@ -2097,16 +2097,11 @@ static void drbd_destroy_mempools(void)
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/* D_ASSERT(device, atomic_read(&drbd_pp_vacant)==0); */
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if (drbd_io_bio_set)
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bioset_free(drbd_io_bio_set);
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if (drbd_md_io_bio_set)
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bioset_free(drbd_md_io_bio_set);
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if (drbd_md_io_page_pool)
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mempool_destroy(drbd_md_io_page_pool);
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if (drbd_ee_mempool)
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mempool_destroy(drbd_ee_mempool);
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if (drbd_request_mempool)
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mempool_destroy(drbd_request_mempool);
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bioset_exit(&drbd_io_bio_set);
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bioset_exit(&drbd_md_io_bio_set);
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mempool_exit(&drbd_md_io_page_pool);
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mempool_exit(&drbd_ee_mempool);
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mempool_exit(&drbd_request_mempool);
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if (drbd_ee_cache)
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kmem_cache_destroy(drbd_ee_cache);
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if (drbd_request_cache)
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@ -2116,11 +2111,6 @@ static void drbd_destroy_mempools(void)
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if (drbd_al_ext_cache)
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kmem_cache_destroy(drbd_al_ext_cache);
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drbd_io_bio_set = NULL;
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drbd_md_io_bio_set = NULL;
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drbd_md_io_page_pool = NULL;
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drbd_ee_mempool = NULL;
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drbd_request_mempool = NULL;
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drbd_ee_cache = NULL;
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drbd_request_cache = NULL;
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drbd_bm_ext_cache = NULL;
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@ -2133,18 +2123,7 @@ static int drbd_create_mempools(void)
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{
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struct page *page;
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const int number = (DRBD_MAX_BIO_SIZE/PAGE_SIZE) * drbd_minor_count;
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int i;
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/* prepare our caches and mempools */
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drbd_request_mempool = NULL;
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drbd_ee_cache = NULL;
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drbd_request_cache = NULL;
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drbd_bm_ext_cache = NULL;
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drbd_al_ext_cache = NULL;
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drbd_pp_pool = NULL;
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drbd_md_io_page_pool = NULL;
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drbd_md_io_bio_set = NULL;
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drbd_io_bio_set = NULL;
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int i, ret;
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/* caches */
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drbd_request_cache = kmem_cache_create(
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@ -2168,26 +2147,26 @@ static int drbd_create_mempools(void)
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goto Enomem;
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/* mempools */
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drbd_io_bio_set = bioset_create(BIO_POOL_SIZE, 0, 0);
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if (drbd_io_bio_set == NULL)
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ret = bioset_init(&drbd_io_bio_set, BIO_POOL_SIZE, 0, 0);
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if (ret)
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goto Enomem;
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drbd_md_io_bio_set = bioset_create(DRBD_MIN_POOL_PAGES, 0,
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BIOSET_NEED_BVECS);
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if (drbd_md_io_bio_set == NULL)
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ret = bioset_init(&drbd_md_io_bio_set, DRBD_MIN_POOL_PAGES, 0,
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BIOSET_NEED_BVECS);
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if (ret)
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goto Enomem;
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drbd_md_io_page_pool = mempool_create_page_pool(DRBD_MIN_POOL_PAGES, 0);
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if (drbd_md_io_page_pool == NULL)
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ret = mempool_init_page_pool(&drbd_md_io_page_pool, DRBD_MIN_POOL_PAGES, 0);
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if (ret)
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goto Enomem;
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drbd_request_mempool = mempool_create_slab_pool(number,
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drbd_request_cache);
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if (drbd_request_mempool == NULL)
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ret = mempool_init_slab_pool(&drbd_request_mempool, number,
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drbd_request_cache);
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if (ret)
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goto Enomem;
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drbd_ee_mempool = mempool_create_slab_pool(number, drbd_ee_cache);
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if (drbd_ee_mempool == NULL)
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ret = mempool_init_slab_pool(&drbd_ee_mempool, number, drbd_ee_cache);
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if (ret)
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goto Enomem;
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/* drbd's page pool */
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@ -378,7 +378,7 @@ drbd_alloc_peer_req(struct drbd_peer_device *peer_device, u64 id, sector_t secto
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if (drbd_insert_fault(device, DRBD_FAULT_AL_EE))
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return NULL;
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peer_req = mempool_alloc(drbd_ee_mempool, gfp_mask & ~__GFP_HIGHMEM);
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peer_req = mempool_alloc(&drbd_ee_mempool, gfp_mask & ~__GFP_HIGHMEM);
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if (!peer_req) {
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if (!(gfp_mask & __GFP_NOWARN))
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drbd_err(device, "%s: allocation failed\n", __func__);
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@ -409,7 +409,7 @@ drbd_alloc_peer_req(struct drbd_peer_device *peer_device, u64 id, sector_t secto
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return peer_req;
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fail:
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mempool_free(peer_req, drbd_ee_mempool);
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mempool_free(peer_req, &drbd_ee_mempool);
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return NULL;
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}
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@ -426,7 +426,7 @@ void __drbd_free_peer_req(struct drbd_device *device, struct drbd_peer_request *
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peer_req->flags &= ~EE_CALL_AL_COMPLETE_IO;
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drbd_al_complete_io(device, &peer_req->i);
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}
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mempool_free(peer_req, drbd_ee_mempool);
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mempool_free(peer_req, &drbd_ee_mempool);
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}
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int drbd_free_peer_reqs(struct drbd_device *device, struct list_head *list)
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@ -55,7 +55,7 @@ static struct drbd_request *drbd_req_new(struct drbd_device *device, struct bio
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{
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struct drbd_request *req;
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req = mempool_alloc(drbd_request_mempool, GFP_NOIO);
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req = mempool_alloc(&drbd_request_mempool, GFP_NOIO);
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if (!req)
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return NULL;
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memset(req, 0, sizeof(*req));
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@ -184,7 +184,7 @@ void drbd_req_destroy(struct kref *kref)
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}
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}
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mempool_free(req, drbd_request_mempool);
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mempool_free(req, &drbd_request_mempool);
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}
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static void wake_all_senders(struct drbd_connection *connection)
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@ -269,7 +269,7 @@ enum drbd_req_state_bits {
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static inline void drbd_req_make_private_bio(struct drbd_request *req, struct bio *bio_src)
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{
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struct bio *bio;
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bio = bio_clone_fast(bio_src, GFP_NOIO, drbd_io_bio_set);
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bio = bio_clone_fast(bio_src, GFP_NOIO, &drbd_io_bio_set);
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req->private_bio = bio;
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