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authorChristof Schmitt <christof.schmitt@de.ibm.com>2008-08-21 07:43:34 -0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-08-29 10:04:13 -0400
commitf48bf7fb00f74d93105ba69522a3f6c9435d6af3 (patch)
tree291ff489bd21474114633f255228b5361e269ed7
parent47f7bba52b01dd881fbd17b4b50c89ecf186eee2 (diff)
[SCSI] zfcp: Simplify ccw notify handler
The notify handler does not change the list of adapters, it only triggers erp actions to open or shutdown the adapter. We don't need to hold the config semaphore and wait for the erp to complete. This is a prerequisite for a fix in the s390 common i/o code. Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: Martin Petermann <martin@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
-rw-r--r--drivers/s390/scsi/zfcp_ccw.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 391dd29749f8..51b6a05f4d12 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -152,10 +152,8 @@ static int zfcp_ccw_set_offline(struct ccw_device *ccw_device)
152 */ 152 */
153static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event) 153static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event)
154{ 154{
155 struct zfcp_adapter *adapter; 155 struct zfcp_adapter *adapter = dev_get_drvdata(&ccw_device->dev);
156 156
157 down(&zfcp_data.config_sema);
158 adapter = dev_get_drvdata(&ccw_device->dev);
159 switch (event) { 157 switch (event) {
160 case CIO_GONE: 158 case CIO_GONE:
161 dev_warn(&adapter->ccw_device->dev, "device gone\n"); 159 dev_warn(&adapter->ccw_device->dev, "device gone\n");
@@ -174,8 +172,6 @@ static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event)
174 89, NULL); 172 89, NULL);
175 break; 173 break;
176 } 174 }
177 zfcp_erp_wait(adapter);
178 up(&zfcp_data.config_sema);
179 return 1; 175 return 1;
180} 176}
181 177