[SCSI] switch EH thread startup to the kthread API

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

1 files changed, 2 insertions, 27 deletions

diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 688bce740786..ebe74ccb518a 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -20,6 +20,7 @@
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
+#include <linux/kthread.h>
 #include <linux/interrupt.h>
 #include <linux/blkdev.h>
 #include <linux/delay.h>
@@ -1585,16 +1586,8 @@ int scsi_error_handler(void *data)
 	int rtn;
 	DECLARE_MUTEX_LOCKED(sem);
 
-	/*
-	 *    Flush resources
-	 */
-
-	daemonize("scsi_eh_%d", shost->host_no);
-
 	current->flags |= PF_NOFREEZE;
-
 	shost->eh_wait = &sem;
-	shost->ehandler = current;
 
 	/*
 	 * Wake up the thread that created us.
@@ -1602,8 +1595,6 @@ int scsi_error_handler(void *data)
 	SCSI_LOG_ERROR_RECOVERY(3, printk("Wake up parent of"
 					  " scsi_eh_%d\n",shost->host_no));
 
-	complete(shost->eh_notify);
-
 	while (1) {
 		/*
 		 * If we get a signal, it means we are supposed to go
@@ -1624,7 +1615,7 @@ int scsi_error_handler(void *data)
 		 * semaphores isn't unreasonable.
 		 */
 		down_interruptible(&sem);
-		if (shost->eh_kill)
+		if (kthread_should_stop())
 			break;
 
 		SCSI_LOG_ERROR_RECOVERY(1, printk("Error handler"
@@ -1663,22 +1654,6 @@ int scsi_error_handler(void *data)
 	 * Make sure that nobody tries to wake us up again.
 	 */
 	shost->eh_wait = NULL;
-
-	/*
-	 * Knock this down too.  From this point on, the host is flying
-	 * without a pilot.  If this is because the module is being unloaded,
-	 * that's fine.  If the user sent a signal to this thing, we are
-	 * potentially in real danger.
-	 */
-	shost->eh_active = 0;
-	shost->ehandler = NULL;
-
-	/*
-	 * If anyone is waiting for us to exit (i.e. someone trying to unload
-	 * a driver), then wake up that process to let them know we are on
-	 * the way out the door.
-	 */
-	complete_and_exit(shost->eh_notify, 0);
 	return 0;
 }