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| author |   Christof Schmitt <christof.schmitt@de.ibm.com> | 2009-11-24 16:54:04 +0100 |
|---|---|---|
| committer |   James Bottomley <James.Bottomley@suse.de> | 2009-12-04 12:02:06 -0600 |
| commit | c1fad4176464281e776022dee7d029144afbeb13 (patch) | |
| tree | c21502a9be5c0e500f4224565a054efbfa3d0254 /drivers/s390/scsi/zfcp_aux.c | |
| parent | [SCSI] zfcp: Merge trace code for fsf requests in one function (diff) | |
| download | linux-dev-c1fad4176464281e776022dee7d029144afbeb13.tar.xz linux-dev-c1fad4176464281e776022dee7d029144afbeb13.zip | |
[SCSI] zfcp: Implement module unloading
With the reference counting for zfcp data structures, it is now
possible to implement module unloading again. Module unloading
requires to free all data structures in the module exit function. This
is done by unregistering zfcp from s390 cio and the SCSI midlayer
first in the module exit function.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.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 | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index baef2ec7482f..12de1ce9a92d 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -189,7 +189,7 @@ static int __init zfcp_module_init(void) goto out_misc; } - retval = zfcp_ccw_register(); + retval = ccw_driver_register(&zfcp_ccw_driver); if (retval) { pr_err("The zfcp device driver could not register with " "the common I/O layer\n"); @@ -218,6 +218,19 @@ out: module_init(zfcp_module_init); +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.gid_pn_cache); + kmem_cache_destroy(zfcp_data.sr_buffer_cache); + kmem_cache_destroy(zfcp_data.qtcb_cache); + kmem_cache_destroy(zfcp_data.gpn_ft_cache); +} + +module_exit(zfcp_module_exit); + /** * zfcp_get_unit_by_lun - find unit in unit list of port by FCP LUN * @port: pointer to port to search for unit |