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| author | Christof Schmitt <christof.schmitt@de.ibm.com> | 2011-02-22 19:54:41 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2011-02-25 12:02:03 -0500 |
| commit | 087897e36982ef8536dc9c8baed159a31517b5e6 (patch) | |
| tree | 3d54e6ca8880f226cfe77c2266a47b6f3474b493 /drivers/s390/scsi/zfcp_aux.c | |
| parent | c7b279ae51942c14529bf2806685e9c658f28611 (diff) | |
| download | lwn-087897e36982ef8536dc9c8baed159a31517b5e6.tar.gz lwn-087897e36982ef8536dc9c8baed159a31517b5e6.zip | |
[SCSI] zfcp: Introduce new kmem_cache for FC request and response data
A data buffer that is passed to the hardware must not cross a page
boundary. zfcp uses a series of kmem_caches to align the data to not
cross a page boundary. Introduce a new kmem_cache for the FC requests
sent from the zfcp driver and use it for the ELS ADISC data. The goal
is to migrate to the FC kmem_cache in later patches and remove the
request specific kmem_caches.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390/scsi/zfcp_aux.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_aux.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 81e185602bb2..adbc05c44362 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -137,10 +137,10 @@ 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_fc_req_cache = zfcp_cache_hw_align("zfcp_fc_req", + sizeof(struct zfcp_fc_req)); + if (!zfcp_fc_req_cache) + goto out_fc_cache; zfcp_data.scsi_transport_template = fc_attach_transport(&zfcp_transport_functions); @@ -172,8 +172,8 @@ 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_fc_req_cache); +out_fc_cache: kmem_cache_destroy(zfcp_data.gid_pn_cache); out_gid_cache: kmem_cache_destroy(zfcp_data.qtcb_cache); @@ -190,7 +190,7 @@ 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_fc_req_cache); kmem_cache_destroy(zfcp_data.gid_pn_cache); kmem_cache_destroy(zfcp_data.qtcb_cache); kmem_cache_destroy(zfcp_data.gpn_ft_cache); |