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authorChristof Schmitt <christof.schmitt@de.ibm.com>2010-07-16 15:37:35 +0200
committerJames Bottomley <James.Bottomley@suse.de>2010-07-28 09:48:46 -0500
commit1bf3ff02ca6247b2d7c9ebda93002392bf60a61d (patch)
tree569683190acd2ac3da8489bdcbd0f25f80c73b3e /drivers/s390
parent674c3a993c278b7469e1cf12bfc13e6838dfd877 (diff)
downloadop-kernel-dev-1bf3ff02ca6247b2d7c9ebda93002392bf60a61d.zip
op-kernel-dev-1bf3ff02ca6247b2d7c9ebda93002392bf60a61d.tar.gz
[SCSI] zfcp: Remove SCSI device when removing unit
Configuring a LUN in zfcp, also creates a SCSI device. For consistency, it makes sense to remove the SCSI device when the LUN is deconfigured. Replace the flush_work with the call to scsi_remove_device: scsi_remove_device also takes the scan_mutex that synchronizes itself with any long running device discovery. 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')
-rw-r--r--drivers/s390/scsi/zfcp_def.h1
-rw-r--r--drivers/s390/scsi/zfcp_scsi.c1
-rw-r--r--drivers/s390/scsi/zfcp_sysfs.c10
3 files changed, 10 insertions, 2 deletions
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 9fa1b06..86a8725 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -212,6 +212,7 @@ struct zfcp_port {
struct work_struct test_link_work;
struct work_struct rport_work;
enum { RPORT_NONE, RPORT_ADD, RPORT_DEL } rport_task;
+ unsigned int starget_id;
};
struct zfcp_unit {
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 4cab33a..9d117ee 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -564,6 +564,7 @@ static void zfcp_scsi_rport_register(struct zfcp_port *port)
rport->maxframe_size = port->maxframe_size;
rport->supported_classes = port->supported_classes;
port->rport = rport;
+ port->starget_id = rport->scsi_target_id;
zfcp_scsi_queue_unit_register(port);
}
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index 205b9f8..b4561c86 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -290,6 +290,7 @@ static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev,
struct zfcp_unit *unit;
u64 fcp_lun;
int retval = -EINVAL;
+ struct scsi_device *sdev;
if (!(port && get_device(&port->dev)))
return -EBUSY;
@@ -303,8 +304,13 @@ static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev,
else
retval = 0;
- /* wait for possible timeout during SCSI probe */
- flush_work(&unit->scsi_work);
+ sdev = scsi_device_lookup(port->adapter->scsi_host, 0,
+ port->starget_id,
+ scsilun_to_int((struct scsi_lun *)&fcp_lun));
+ if (sdev) {
+ scsi_remove_device(sdev);
+ scsi_device_put(sdev);
+ }
write_lock_irq(&port->unit_list_lock);
list_del(&unit->list);
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