| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 026/110] block: kyber: fix domain token leak during requeue | Date | Wed, 7 Mar 2018 11:38:09 -0800 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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From: Ming Lei <ming.lei@redhat.com>
commit ba989a01469d027861e55c8f1121edadef757797 upstream.
When requeuing request, the domain token should have been freed before re-inserting the request to io scheduler. Otherwise, the assigned domain token will be leaked, and IO hang can be caused.
Cc: Paolo Valente <paolo.valente@linaro.org> Cc: Omar Sandoval <osandov@fb.com> Cc: stable@vger.kernel.org Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- block/kyber-iosched.c | 1 + 1 file changed, 1 insertion(+)
--- a/block/kyber-iosched.c +++ b/block/kyber-iosched.c @@ -814,6 +814,7 @@ static struct elevator_type kyber_sched .limit_depth = kyber_limit_depth, .prepare_request = kyber_prepare_request, .finish_request = kyber_finish_request, + .requeue_request = kyber_finish_request, .completed_request = kyber_completed_request, .dispatch_request = kyber_dispatch_request, .has_work = kyber_has_work,
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