| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.5 107/238] mtip32xx: Fix broken service thread handling | Date | Sun, 10 Apr 2016 11:34:44 -0700 |
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4.5-stable review patch. If anyone has any objections, please let me know.
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From: Asai Thambi SP <asamymuthupa@micron.com>
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>
--- drivers/block/mtip32xx/mtip32xx.c | 6 +++--- drivers/block/mtip32xx/mtip32xx.h | 5 +++++ 2 files changed, 8 insertions(+), 3 deletions(-)
--- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -2917,9 +2917,7 @@ static int mtip_service_thread(void *dat * 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 *dat &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)) { --- 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,
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