From b0a6916bcc48f46996d54b8451591a2f2b7b2f64 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 14 Mar 2006 15:32:50 -0500 Subject: [PATCH] [PATCH] fix cfq hash lookups If somebody does a hash lookup for cfq_queue while ioprio of an async queue is elevated, they shouldn't end up stuck with lowered ioprio when we go back. Fix is to use ->org_ioprio{,class} in hash lookups. Signed-off-by: Al Viro --- block/cfq-iosched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index c8dbe38c81c8..37a2a772498c 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -1179,7 +1179,7 @@ __cfq_find_cfq_hash(struct cfq_data *cfqd, unsigned int key, unsigned int prio, hlist_for_each_safe(entry, next, hash_list) { struct cfq_queue *__cfqq = list_entry_qhash(entry); - const unsigned short __p = IOPRIO_PRIO_VALUE(__cfqq->ioprio_class, __cfqq->ioprio); + const unsigned short __p = IOPRIO_PRIO_VALUE(__cfqq->org_ioprio_class, __cfqq->org_ioprio); if (__cfqq->key == key && (__p == prio || prio == CFQ_KEY_ANY)) return __cfqq; -- 2.20.1