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authorAsai Thambi SP <asamymuthupa@micron.com>2016-02-24 21:16:00 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-04-12 09:08:51 -0700
commit1b899eb4833d3394f37272d38b4b1a26eac30feb (patch)
tree120aba7c8a9a485ac93aec9872aa3e4e4f5cde64 /drivers/block
parentef87aef51d0de4220bf9c4de34de89f2716b3398 (diff)
mtip32xx: Fix broken service thread handling
commit cfc05bd31384c4898bf2437a4de5557f3cf9803a upstream. 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> Signed-off-by: Jens Axboe <axboe@fb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/block')
-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 deb0c761d5db..de4d965139ed 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -2924,9 +2924,7 @@ 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))
@@ -2936,6 +2934,8 @@ 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,