diff options
| author | Artur Grabowski <art@cvs.openbsd.org> | 2007-03-15 10:22:31 +0000 |
|---|---|---|
| committer | Artur Grabowski <art@cvs.openbsd.org> | 2007-03-15 10:22:31 +0000 |
| commit | bd2b614cddbdb963198fdd15728e067d209f3cf7 (patch) | |
| tree | 1710a23e5d69760e81f4955e44aac6e49a944b07 /sys/kern/kern_clock.c | |
| parent | b93b6840228d38589b6e976f3a325539c4fc9ae0 (diff) | |
Since p_flag is often manipulated in interrupts and without biglock
it's a good idea to use atomic.h operations on it. This mechanic
change updates all bit operations on p_flag to atomic_{set,clear}bits_int.
Only exception is that P_OWEUPC is set by MI code before calling
need_proftick and it's automatically cleared by ADDUPC. There's
no reason for MD handling of that flag since everyone handles it the
same way.
kettenis@ ok
Diffstat (limited to 'sys/kern/kern_clock.c')
| -rw-r--r-- | sys/kern/kern_clock.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/kern/kern_clock.c b/sys/kern/kern_clock.c index 024bc6cc2ae..ba55361a277 100644 --- a/sys/kern/kern_clock.c +++ b/sys/kern/kern_clock.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_clock.c,v 1.60 2006/12/24 20:29:45 miod Exp $ */ +/* $OpenBSD: kern_clock.c,v 1.61 2007/03/15 10:22:30 art Exp $ */ /* $NetBSD: kern_clock.c,v 1.34 1996/06/09 04:51:03 briggs Exp $ */ /*- @@ -446,7 +446,7 @@ startprofclock(struct proc *p) int s; if ((p->p_flag & P_PROFIL) == 0) { - p->p_flag |= P_PROFIL; + atomic_setbits_int(&p->p_flag, P_PROFIL); if (++profprocs == 1 && stathz != 0) { s = splstatclock(); psdiv = pscnt = psratio; @@ -465,7 +465,7 @@ stopprofclock(struct proc *p) int s; if (p->p_flag & P_PROFIL) { - p->p_flag &= ~P_PROFIL; + atomic_clearbits_int(&p->p_flag, P_PROFIL); if (--profprocs == 0 && stathz != 0) { s = splstatclock(); psdiv = pscnt = 1; |