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authorjulian <julian@FreeBSD.org>2002-07-29 18:33:32 +0000
committerjulian <julian@FreeBSD.org>2002-07-29 18:33:32 +0000
commit6216c4b163409794825c784e02317143975376f3 (patch)
treefb17cadef050bebf8077e451640f625b2317869b /sys/kern/kern_condvar.c
parent9f0ddc464e0c402f25ea8ae47e53ae9dba1c60c6 (diff)
downloadFreeBSD-src-6216c4b163409794825c784e02317143975376f3.zip
FreeBSD-src-6216c4b163409794825c784e02317143975376f3.tar.gz
Create a new thread state to describe threads that would be ready to run
except for the fact tha they are presently swapped out. Also add a process flag to indicate that the process has started the struggle to swap back in. This will be needed for the case where multiple threads start the swapin action top a collision. Also add code to stop a process fropm being swapped out if one of the threads in this process is actually off running on another CPU.. that might hurt... Submitted by: Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp>
Diffstat (limited to 'sys/kern/kern_condvar.c')
-rw-r--r--sys/kern/kern_condvar.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/kern/kern_condvar.c b/sys/kern/kern_condvar.c
index e2bbbb4..822a4c9 100644
--- a/sys/kern/kern_condvar.c
+++ b/sys/kern/kern_condvar.c
@@ -533,6 +533,7 @@ cv_wakeup(struct cv *cvp)
setrunqueue(td);
maybe_resched(td);
} else {
+ td->td_state = TDS_SWAPPED;
td->td_proc->p_sflag |= PS_SWAPINREQ;
wakeup(&proc0); /* XXXKSE */
}
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