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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2011-02-23 12:39:46 +0100 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2012-05-09 15:17:02 +0200 |
| commit | 4281808fb3580c381a23cceb0a29ced92d570a5f (patch) | |
| tree | b561a60dc382305bba499ae0e12c6e0573a3df06 /drivers/block/drbd/drbd_main.c | |
| parent | drbd: allow bitmap to change during writeout from resync_finished (diff) | |
| download | linux-4281808fb3580c381a23cceb0a29ced92d570a5f.tar.xz linux-4281808fb3580c381a23cceb0a29ced92d570a5f.zip | |
drbd: add page pool to be used for meta data IO
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_main.c')
| -rw-r--r-- | drivers/block/drbd/drbd_main.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index d830116781f9..ed264c92c3af 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -139,6 +139,7 @@ struct kmem_cache *drbd_bm_ext_cache; /* bitmap extents */ struct kmem_cache *drbd_al_ext_cache; /* activity log extents */ mempool_t *drbd_request_mempool; mempool_t *drbd_ee_mempool; +mempool_t *drbd_md_io_page_pool; /* I do not use a standard mempool, because: 1) I want to hand out the pre-allocated objects first. @@ -3264,6 +3265,8 @@ static void drbd_destroy_mempools(void) /* D_ASSERT(atomic_read(&drbd_pp_vacant)==0); */ + if (drbd_md_io_page_pool) + mempool_destroy(drbd_md_io_page_pool); if (drbd_ee_mempool) mempool_destroy(drbd_ee_mempool); if (drbd_request_mempool) @@ -3277,6 +3280,7 @@ static void drbd_destroy_mempools(void) if (drbd_al_ext_cache) kmem_cache_destroy(drbd_al_ext_cache); + drbd_md_io_page_pool = NULL; drbd_ee_mempool = NULL; drbd_request_mempool = NULL; drbd_ee_cache = NULL; @@ -3300,6 +3304,7 @@ static int drbd_create_mempools(void) drbd_bm_ext_cache = NULL; drbd_al_ext_cache = NULL; drbd_pp_pool = NULL; + drbd_md_io_page_pool = NULL; /* caches */ drbd_request_cache = kmem_cache_create( @@ -3323,6 +3328,10 @@ static int drbd_create_mempools(void) goto Enomem; /* mempools */ + drbd_md_io_page_pool = mempool_create_page_pool(DRBD_MIN_POOL_PAGES, 0); + if (drbd_md_io_page_pool == NULL) + goto Enomem; + drbd_request_mempool = mempool_create(number, mempool_alloc_slab, mempool_free_slab, drbd_request_cache); if (drbd_request_mempool == NULL) |