[SCSI] allow sleeping in ->eh_host_reset_handler()

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/fc4/fc.c

@@ -1005,13 +1005,7 @@ int fcp_scsi_dev_reset(Scsi_Cmnd *SCpnt)
 	return SUCCESS;
 }
 
-int fcp_scsi_bus_reset(Scsi_Cmnd *SCpnt)
-{
-	printk ("FC: bus reset!\n");
-	return FAILED;
-}
-
-int fcp_scsi_host_reset(Scsi_Cmnd *SCpnt)
+static int __fcp_scsi_host_reset(Scsi_Cmnd *SCpnt)
 {
 	fc_channel *fc = FC_SCMND(SCpnt);
 	fcp_cmnd *fcmd = FCP_CMND(SCpnt);
@@ -1032,6 +1026,17 @@ int fcp_scsi_host_reset(Scsi_Cmnd *SCpnt)
 	else return FAILED;
 }
 
+int fcp_scsi_host_reset(Scsi_Cmnd *SCpnt)
+{
+	int rc;
+
+	spin_lock_irqsave(SCpnt->device->host->host_lock, flags);
+	rc = __fcp_scsi_host_reset(SCpnt);
+	spin_unlock_irqrestore(SCpnt->device->host->host_lock, flags);
+
+	return rc;
+}
+
 static int fcp_els_queue_it(fc_channel *fc, fcp_cmnd *fcmd)
 {
 	long i;

drivers/fc4/fc_syms.c

@@ -27,7 +27,6 @@ EXPORT_SYMBOL(fc_do_prli);
 EXPORT_SYMBOL(fcp_scsi_queuecommand);
 EXPORT_SYMBOL(fcp_scsi_abort);
 EXPORT_SYMBOL(fcp_scsi_dev_reset);
-EXPORT_SYMBOL(fcp_scsi_bus_reset);
 EXPORT_SYMBOL(fcp_scsi_host_reset);
 
 #endif /* CONFIG_MODULES */

drivers/fc4/fcp_impl.h

@@ -158,7 +158,6 @@ int fc_do_prli(fc_channel *, unsigned char);
 int fcp_scsi_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *));
 int fcp_scsi_abort(Scsi_Cmnd *);
 int fcp_scsi_dev_reset(Scsi_Cmnd *);
-int fcp_scsi_bus_reset(Scsi_Cmnd *);
 int fcp_scsi_host_reset(Scsi_Cmnd *);
 
 #endif /* !(_FCP_SCSI_H) */