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authorAsai Thambi SP <asamymuthupa@micron.com>2016-02-24 21:16:00 -0800
committerJens Axboe <axboe@fb.com>2016-03-03 09:08:43 -0700
commitcfc05bd31384c4898bf2437a4de5557f3cf9803a (patch)
treeb83d6c29a6af0ff6ba4aee7d35aa5ff68aa29d19 /drivers/block/mtip32xx
parentff482f7f6a1750a5ba9bb57a4560716df82338a6 (diff)
downloadlinux-cfc05bd31384c4898bf2437a4de5557f3cf9803a.tar.gz
mtip32xx: Fix broken service thread handling
Service thread does not detect the need for taskfile error hanlding. Fixed the
flag condition to process taskfile error.

Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block/mtip32xx')
-rw-r--r--drivers/block/mtip32xx/mtip32xx.c6
-rw-r--r--drivers/block/mtip32xx/mtip32xx.h5
2 files changed, 8 insertions, 3 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 9b180dbbd03c..dc445b4fc00f 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -2917,9 +2917,7 @@ static int mtip_service_thread(void *data)
 		 * is in progress nor error handling is active
 		 */
 		wait_event_interruptible(port->svc_wait, (port->flags) &&
-			!(port->flags & MTIP_PF_PAUSE_IO));
-
-		set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
+			(port->flags & MTIP_PF_SVC_THD_WORK));
 
 		if (kthread_should_stop() ||
 			test_bit(MTIP_PF_SVC_THD_STOP_BIT, &port->flags))
@@ -2929,6 +2927,8 @@ static int mtip_service_thread(void *data)
 				&dd->dd_flag)))
 			goto st_out;
 
+		set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
+
 restart_eh:
 		/* Demux bits: start with error handling */
 		if (test_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags)) {
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index 3274784008eb..8635239c521f 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -144,6 +144,11 @@ enum {
 	MTIP_PF_REBUILD_BIT         = 6,
 	MTIP_PF_SVC_THD_STOP_BIT    = 8,
 
+	MTIP_PF_SVC_THD_WORK	= ((1 << MTIP_PF_EH_ACTIVE_BIT) |
+				  (1 << MTIP_PF_ISSUE_CMDS_BIT) |
+				  (1 << MTIP_PF_REBUILD_BIT) |
+				  (1 << MTIP_PF_SVC_THD_STOP_BIT)),
+
 	/* below are bit numbers in 'dd_flag' defined in driver_data */
 	MTIP_DDF_SEC_LOCK_BIT	    = 0,
 	MTIP_DDF_REMOVE_PENDING_BIT = 1,