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e specific code to revert a partial add ot teh run queue, not

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remrunqueue() which can't handle a partially added thread.

MFC after:	1 week
This commit is contained in:
Julian Elischer 2004-09-16 05:37:40 +00:00
parent 15c37be013
commit 9da3e923f4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=135291
1 changed files with 9 additions and 1 deletions
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10
sys/kern/kern_switch.c
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@ -536,8 +536,16 @@ maybe_preempt(struct thread *td)
/*
* If this is a threaded process we actually ARE on the
* ksegrp run queue so take it off that first.
* Also undo any damage done to the last_assigned pointer.
* XXX Fix setrunqueue so this isn't needed
*/
remrunqueue(td); /* maybe use a simpler version */
struct ksegrp *kg;
kg = td->td_ksegrp;
if (kg->kg_last_assigned == td)
kg->kg_last_assigned =
TAILQ_PREV(td, threadqueue, td_runq);
TAILQ_REMOVE(&kg->kg_runq, td, td_runq);
}
TD_SET_RUNNING(td);