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| author | Ming Lei <ming.lei@redhat.com> | 2018-02-23 23:36:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-08 22:47:31 -0800 |
| commit | ea402611ed0308a02674c1367b97e730134e6fa2 (patch) | |
| tree | c4e09bd7a777e771290b646ca9cb04d44cdc78c7 /block | |
| parent | 8882f981b717b2e02e8424b1c8de19819d8eb42b (diff) | |
| download | linux-ea402611ed0308a02674c1367b97e730134e6fa2.tar.gz linux-ea402611ed0308a02674c1367b97e730134e6fa2.tar.bz2 linux-ea402611ed0308a02674c1367b97e730134e6fa2.zip | |
block: kyber: fix domain token leak during requeue
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>
Diffstat (limited to 'block')
| -rw-r--r-- | block/kyber-iosched.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c index f95c60774ce8..0d6d25e32e1f 100644 --- a/block/kyber-iosched.c +++ b/block/kyber-iosched.c @@ -833,6 +833,7 @@ 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, |