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block: access io_limits_disabled with atomic ops

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Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20170605123908.18777-4-pbonzini@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
This commit is contained in:
Paolo Bonzini 2017-06-05 14:38:52 +02:00 • committed by Fam Zheng
parent 414c2ec358
commit d993b85804
3 changed files with 5 additions and 4 deletions
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2
block/throttle-groups.c
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@ -240,7 +240,7 @@ static bool throttle_group_schedule_timer(BlockBackend *blk, bool is_write)
ThrottleGroup *tg = container_of(ts, ThrottleGroup, ts);
bool must_wait;
if (blkp->io_limits_disabled) {
if (atomic_read(&blkp->io_limits_disabled)) {
return false;
}