[PATCH] mempool: use common mempool kmalloc allocator

This patch changes several mempool users, all of which are basically just
wrappers around kmalloc(), to use the common mempool_kmalloc/kfree, rather
than their own wrapper function, removing a bunch of duplicated code.

Signed-off-by: Matthew Dobson <colpatch@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 18 insertions, 42 deletions

diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 95b92f317b6f..395cfc6a344f 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -829,18 +829,6 @@ zfcp_unit_dequeue(struct zfcp_unit *unit)
         device_unregister(&unit->sysfs_device);
 }
 
-static void *
-zfcp_mempool_alloc(gfp_t gfp_mask, void *size)
-{
-        return kmalloc((size_t) size, gfp_mask);
-}
-
-static void
-zfcp_mempool_free(void *element, void *size)
-{
-        kfree(element);
-}
-
 /*
  * Allocates a combined QTCB/fsf_req buffer for erp actions and fcp/SCSI
  * commands.
@@ -853,51 +841,39 @@ static int
 zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)
 {
         adapter->pool.fsf_req_erp =
-                mempool_create(ZFCP_POOL_FSF_REQ_ERP_NR,
-                               zfcp_mempool_alloc, zfcp_mempool_free, (void *)
-                               sizeof(struct zfcp_fsf_req_pool_element));
-
-        if (NULL == adapter->pool.fsf_req_erp)
+                mempool_create_kmalloc_pool(ZFCP_POOL_FSF_REQ_ERP_NR,
+                                sizeof(struct zfcp_fsf_req_pool_element));
+        if (!adapter->pool.fsf_req_erp)
                 return -ENOMEM;
 
         adapter->pool.fsf_req_scsi =
-                mempool_create(ZFCP_POOL_FSF_REQ_SCSI_NR,
-                               zfcp_mempool_alloc, zfcp_mempool_free, (void *)
-                               sizeof(struct zfcp_fsf_req_pool_element));
-
-        if (NULL == adapter->pool.fsf_req_scsi)
+                mempool_create_kmalloc_pool(ZFCP_POOL_FSF_REQ_SCSI_NR,
+                                sizeof(struct zfcp_fsf_req_pool_element));
+        if (!adapter->pool.fsf_req_scsi)
                 return -ENOMEM;
 
         adapter->pool.fsf_req_abort =
-                mempool_create(ZFCP_POOL_FSF_REQ_ABORT_NR,
-                               zfcp_mempool_alloc, zfcp_mempool_free, (void *)
-                               sizeof(struct zfcp_fsf_req_pool_element));
-
-        if (NULL == adapter->pool.fsf_req_abort)
+                mempool_create_kmalloc_pool(ZFCP_POOL_FSF_REQ_ABORT_NR,
+                                sizeof(struct zfcp_fsf_req_pool_element));
+        if (!adapter->pool.fsf_req_abort)
                 return -ENOMEM;
 
         adapter->pool.fsf_req_status_read =
-                mempool_create(ZFCP_POOL_STATUS_READ_NR,
-                               zfcp_mempool_alloc, zfcp_mempool_free,
-                               (void *) sizeof(struct zfcp_fsf_req));
-
-        if (NULL == adapter->pool.fsf_req_status_read)
+                mempool_create_kmalloc_pool(ZFCP_POOL_STATUS_READ_NR,
+                                            sizeof(struct zfcp_fsf_req));
+        if (!adapter->pool.fsf_req_status_read)
                 return -ENOMEM;
 
         adapter->pool.data_status_read =
-                mempool_create(ZFCP_POOL_STATUS_READ_NR,
-                               zfcp_mempool_alloc, zfcp_mempool_free,
-                               (void *) sizeof(struct fsf_status_read_buffer));
-
-        if (NULL == adapter->pool.data_status_read)
+                mempool_create_kmalloc_pool(ZFCP_POOL_STATUS_READ_NR,
+                                        sizeof(struct fsf_status_read_buffer));
+        if (!adapter->pool.data_status_read)
                 return -ENOMEM;
 
         adapter->pool.data_gid_pn =
-                mempool_create(ZFCP_POOL_DATA_GID_PN_NR,
-                               zfcp_mempool_alloc, zfcp_mempool_free, (void *)
-                               sizeof(struct zfcp_gid_pn_data));
-
-        if (NULL == adapter->pool.data_gid_pn)
+                mempool_create_kmalloc_pool(ZFCP_POOL_DATA_GID_PN_NR,
+                                            sizeof(struct zfcp_gid_pn_data));
+        if (!adapter->pool.data_gid_pn)
                 return -ENOMEM;
 
         return 0;