From ee744622c65cd66824e8dd1b9509e515c800de14 Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Tue, 24 Nov 2009 16:54:14 +0100 Subject: [SCSI] zfcp: Improve ELS ADISC handling Introduce kmem_cache for ELS ADISC data to guarantee the required hardware alignment and free the allocated memory in case the send failes. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_aux.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/s390/scsi/zfcp_aux.c') diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 58bb17732f56..9d0c941b7d33 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -179,6 +179,11 @@ static int __init zfcp_module_init(void) if (!zfcp_data.gid_pn_cache) goto out_gid_cache; + zfcp_data.adisc_cache = zfcp_cache_hw_align("zfcp_adisc", + sizeof(struct zfcp_fc_els_adisc)); + if (!zfcp_data.adisc_cache) + goto out_adisc_cache; + zfcp_data.scsi_transport_template = fc_attach_transport(&zfcp_transport_functions); if (!zfcp_data.scsi_transport_template) @@ -206,6 +211,8 @@ out_ccw_register: out_misc: fc_release_transport(zfcp_data.scsi_transport_template); out_transport: + kmem_cache_destroy(zfcp_data.adisc_cache); +out_adisc_cache: kmem_cache_destroy(zfcp_data.gid_pn_cache); out_gid_cache: kmem_cache_destroy(zfcp_data.sr_buffer_cache); @@ -224,6 +231,7 @@ static void __exit zfcp_module_exit(void) ccw_driver_unregister(&zfcp_ccw_driver); misc_deregister(&zfcp_cfdc_misc); fc_release_transport(zfcp_data.scsi_transport_template); + kmem_cache_destroy(zfcp_data.adisc_cache); kmem_cache_destroy(zfcp_data.gid_pn_cache); kmem_cache_destroy(zfcp_data.sr_buffer_cache); kmem_cache_destroy(zfcp_data.qtcb_cache); -- cgit v1.2.3