FreeBSD Bugzilla – Attachment 152491 Details for
Bug 197277
[patch] avoid assignment to sq twice in sleepq_add()
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[patch]
patch for sleepq_add()
sleepq.patch (text/plain), 825 bytes, created by
luke.tw
on 2015-02-02 17:36:17 UTC
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Description:
patch for sleepq_add()
Filename:
MIME Type:
Creator:
luke.tw
Created:
2015-02-02 17:36:17 UTC
Size:
825 bytes
patch
obsolete
>Index: sys/kern/subr_sleepqueue.c >=================================================================== >--- sys/kern/subr_sleepqueue.c (revision 277961) >+++ sys/kern/subr_sleepqueue.c (working copy) >@@ -318,11 +318,9 @@ > * into the sleep queue already in use by this wait channel. > */ > if (sq == NULL) { >+ sq = td->td_sleepqueue; > #ifdef INVARIANTS >- int i; >- >- sq = td->td_sleepqueue; >- for (i = 0; i < NR_SLEEPQS; i++) { >+ for (int i = 0; i < NR_SLEEPQS; i++) { > KASSERT(TAILQ_EMPTY(&sq->sq_blocked[i]), > ("thread's sleep queue %d is not empty", i)); > KASSERT(sq->sq_blockedcnt[i] == 0, >@@ -341,7 +339,6 @@ > sleepq_max_depth = sc->sc_max_depth; > } > #endif >- sq = td->td_sleepqueue; > LIST_INSERT_HEAD(&sc->sc_queues, sq, sq_hash); > sq->sq_wchan = wchan; > sq->sq_type = flags & SLEEPQ_TYPE;
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