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Rethink it a bit, if there is a STOP flag, don't bother to resume other

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threads.
This commit is contained in:
David Xu 2006-03-21 10:05:15 +00:00
parent 862aa05f64
commit bf1a322061
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=156942
1 changed files with 3 additions and 0 deletions
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3
sys/kern/kern_thread.c
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@ -767,6 +767,8 @@ thread_single(int mode)
else
remaining = p->p_numthreads - p->p_suspcount;
while (remaining != 1) {
if (P_SHOULDSTOP(p) != P_STOPPED_SINGLE)
goto stopme;
FOREACH_THREAD_IN_PROC(p, td2) {
if (td2 == td)
continue;
@ -822,6 +824,7 @@ thread_single(int mode)
if (remaining == 1)
break;
stopme:
/*
* Wake us up when everyone else has suspended.
* In the mean time we suspend as well.