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authorjake <jake@FreeBSD.org>2000-11-19 06:02:32 +0000
committerjake <jake@FreeBSD.org>2000-11-19 06:02:32 +0000
commitf265931038bd5d4784d95756bac9482fea5c237a (patch)
tree011a8ccbfdc24eb4d3ad466439c9241fc3bd25f7 /sys/kern/kern_mutex.c
parent9c6b4db333692ded21cd0e118ef680cefb97d0d4 (diff)
downloadFreeBSD-src-f265931038bd5d4784d95756bac9482fea5c237a.zip
FreeBSD-src-f265931038bd5d4784d95756bac9482fea5c237a.tar.gz
- Protect the callout wheel with a separate spin mutex, callout_lock.
- Use the mutex in hardclock to ensure no races between it and softclock. - Make softclock be INTR_MPSAFE and provide a flag, CALLOUT_MPSAFE, which specifies that a callout handler does not need giant. There is still no way to set this flag when regstering a callout. Reviewed by: -smp@, jlemon
Diffstat (limited to 'sys/kern/kern_mutex.c')
-rw-r--r--sys/kern/kern_mutex.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/kern/kern_mutex.c b/sys/kern/kern_mutex.c
index 58a98d1..f8d3e9e 100644
--- a/sys/kern/kern_mutex.c
+++ b/sys/kern/kern_mutex.c
@@ -703,6 +703,7 @@ static char *spin_order_list[] = {
#ifdef __i386__
"clk",
#endif
+ "callout",
/*
* leaf locks
*/
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