From: Asai Thambi SP <asamymuthupa@xxxxxxxxxx> This patch has been added to the 3.18 stable tree. If you have any objections, please let us know. =============== [ Upstream commit cfc05bd31384c4898bf2437a4de5557f3cf9803a ] 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@xxxxxxxxxx> Signed-off-by: Asai Thambi S P <asamymuthupa@xxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Jens Axboe <axboe@xxxxxx> Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx> --- drivers/block/mtip32xx/mtip32xx.c | 12 ++++++++++-- drivers/block/mtip32xx/mtip32xx.h | 5 +++++ 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 7681d70..93e542c 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -2946,9 +2946,15 @@ 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)); + (port->flags & MTIP_PF_SVC_THD_WORK)); - set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags); + if (kthread_should_stop() || + test_bit(MTIP_PF_SVC_THD_STOP_BIT, &port->flags)) + goto st_out; + + if (unlikely(test_bit(MTIP_DDF_REMOVE_PENDING_BIT, + &dd->dd_flag))) + goto st_out; if (kthread_should_stop() || test_bit(MTIP_PF_SVC_THD_STOP_BIT, &port->flags)) @@ -2962,6 +2968,8 @@ 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 7669526..578ad36 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -145,6 +145,11 @@ enum { MTIP_PF_SR_CLEANUP_BIT = 7, 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, -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html