1 files changed, 58 insertions, 18 deletions

diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index adc9d8f2c28f..d2b094d9c34f 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -299,11 +299,45 @@ zfcp_init_device_configure(void)
         return;
 }
 
+static int calc_alignment(int size)
+{
+        int align = 1;
+
+        if (!size)
+                return 0;
+
+        while ((size - align) > 0)
+                align <<= 1;
+
+        return align;
+}
+
 static int __init
 zfcp_module_init(void)
 {
+        int retval = -ENOMEM;
+        int size, align;
+
+        size = sizeof(struct zfcp_fsf_req_qtcb);
+        align = calc_alignment(size);
+        zfcp_data.fsf_req_qtcb_cache =
+                kmem_cache_create("zfcp_fsf", size, align, 0, NULL, NULL);
+        if (!zfcp_data.fsf_req_qtcb_cache)
+                goto out;
 
-        int retval = 0;
+        size = sizeof(struct fsf_status_read_buffer);
+        align = calc_alignment(size);
+        zfcp_data.sr_buffer_cache =
+                kmem_cache_create("zfcp_sr", size, align, 0, NULL, NULL);
+        if (!zfcp_data.sr_buffer_cache)
+                goto out_sr_cache;
+
+        size = sizeof(struct zfcp_gid_pn_data);
+        align = calc_alignment(size);
+        zfcp_data.gid_pn_cache =
+                kmem_cache_create("zfcp_gid", size, align, 0, NULL, NULL);
+        if (!zfcp_data.gid_pn_cache)
+                goto out_gid_cache;
 
         atomic_set(&zfcp_data.loglevel, loglevel);
 
@@ -313,15 +347,16 @@ zfcp_module_init(void)
         /* initialize adapters to be removed list head */
         INIT_LIST_HEAD(&zfcp_data.adapter_remove_lh);
 
-        zfcp_transport_template = fc_attach_transport(&zfcp_transport_functions);
-        if (!zfcp_transport_template)
-                return -ENODEV;
+        zfcp_data.scsi_transport_template =
+                fc_attach_transport(&zfcp_transport_functions);
+        if (!zfcp_data.scsi_transport_template)
+                goto out_transport;
 
         retval = misc_register(&zfcp_cfdc_misc);
         if (retval != 0) {
                 ZFCP_LOG_INFO("registration of misc device "
                               "zfcp_cfdc failed\n");
-                goto out;
+                goto out_misc;
         }
 
         ZFCP_LOG_TRACE("major/minor for zfcp_cfdc: %d/%d\n",
@@ -333,9 +368,6 @@ zfcp_module_init(void)
         /* initialise configuration rw lock */
         rwlock_init(&zfcp_data.config_lock);
 
-        /* save address of data structure managing the driver module */
-        zfcp_data.scsi_host_template.module = THIS_MODULE;
-
         /* setup dynamic I/O */
         retval = zfcp_ccw_register();
         if (retval) {
@@ -350,6 +382,14 @@ zfcp_module_init(void)
 
  out_ccw_register:
         misc_deregister(&zfcp_cfdc_misc);
+ out_misc:
+        fc_release_transport(zfcp_data.scsi_transport_template);
+ out_transport:
+        kmem_cache_destroy(zfcp_data.gid_pn_cache);
+ out_gid_cache:
+        kmem_cache_destroy(zfcp_data.sr_buffer_cache);
+ out_sr_cache:
+        kmem_cache_destroy(zfcp_data.fsf_req_qtcb_cache);
  out:
         return retval;
 }
@@ -935,20 +975,20 @@ static int
 zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)
 {
         adapter->pool.fsf_req_erp =
-                mempool_create_kmalloc_pool(ZFCP_POOL_FSF_REQ_ERP_NR,
-                                sizeof(struct zfcp_fsf_req_pool_element));
+                mempool_create_slab_pool(ZFCP_POOL_FSF_REQ_ERP_NR,
+                                         zfcp_data.fsf_req_qtcb_cache);
         if (!adapter->pool.fsf_req_erp)
                 return -ENOMEM;
 
         adapter->pool.fsf_req_scsi =
-                mempool_create_kmalloc_pool(ZFCP_POOL_FSF_REQ_SCSI_NR,
-                                sizeof(struct zfcp_fsf_req_pool_element));
+                mempool_create_slab_pool(ZFCP_POOL_FSF_REQ_SCSI_NR,
+                                         zfcp_data.fsf_req_qtcb_cache);
         if (!adapter->pool.fsf_req_scsi)
                 return -ENOMEM;
 
         adapter->pool.fsf_req_abort =
-                mempool_create_kmalloc_pool(ZFCP_POOL_FSF_REQ_ABORT_NR,
-                                sizeof(struct zfcp_fsf_req_pool_element));
+                mempool_create_slab_pool(ZFCP_POOL_FSF_REQ_ABORT_NR,
+                                         zfcp_data.fsf_req_qtcb_cache);
         if (!adapter->pool.fsf_req_abort)
                 return -ENOMEM;
 
@@ -959,14 +999,14 @@ zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)
                 return -ENOMEM;
 
         adapter->pool.data_status_read =
-                mempool_create_kmalloc_pool(ZFCP_POOL_STATUS_READ_NR,
-                                        sizeof(struct fsf_status_read_buffer));
+                mempool_create_slab_pool(ZFCP_POOL_STATUS_READ_NR,
+                                         zfcp_data.sr_buffer_cache);
         if (!adapter->pool.data_status_read)
                 return -ENOMEM;
 
         adapter->pool.data_gid_pn =
-                mempool_create_kmalloc_pool(ZFCP_POOL_DATA_GID_PN_NR,
-                                            sizeof(struct zfcp_gid_pn_data));
+                mempool_create_slab_pool(ZFCP_POOL_DATA_GID_PN_NR,
+                                         zfcp_data.gid_pn_cache);
         if (!adapter->pool.data_gid_pn)
                 return -ENOMEM;