diff options
| author | tjr <tjr@FreeBSD.org> | 2003-02-17 10:03:02 +0000 |
|---|---|---|
| committer | tjr <tjr@FreeBSD.org> | 2003-02-17 10:03:02 +0000 |
| commit | 6ebeaa8ec8a84c0fe2ebf0392ae3386ba9840a81 (patch) | |
| tree | 70379db9c789bdee37bcb55df1faf55a4e2e6708 /sys/compat | |
| parent | 5c29a640b86af6a1bd38d6186b82cba5e9c21065 (diff) | |
| download | FreeBSD-src-6ebeaa8ec8a84c0fe2ebf0392ae3386ba9840a81.zip FreeBSD-src-6ebeaa8ec8a84c0fe2ebf0392ae3386ba9840a81.tar.gz | |
Use the proc lock to protect p_realtimer instead of Giant, and obtain
sched_lock around accesses to p_stats->p_timer[] to avoid a potential
race with hardclock. getitimer(), setitimer() and the realitexpire()
callout are now Giant-free.
Diffstat (limited to 'sys/compat')
| -rw-r--r-- | sys/compat/linux/linux_misc.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c index 57460a8..b5057ec 100644 --- a/sys/compat/linux/linux_misc.c +++ b/sys/compat/linux/linux_misc.c @@ -164,7 +164,6 @@ linux_alarm(struct thread *td, struct linux_alarm_args *args) { struct itimerval it, old_it; struct timeval tv; - int s; #ifdef DEBUG if (ldebug(alarm)) @@ -178,7 +177,7 @@ linux_alarm(struct thread *td, struct linux_alarm_args *args) it.it_value.tv_usec = 0; it.it_interval.tv_sec = 0; it.it_interval.tv_usec = 0; - s = splsoftclock(); + PROC_LOCK(td->td_proc); old_it = td->td_proc->p_realtimer; getmicrouptime(&tv); if (timevalisset(&old_it.it_value)) @@ -189,7 +188,7 @@ linux_alarm(struct thread *td, struct linux_alarm_args *args) timevaladd(&it.it_value, &tv); } td->td_proc->p_realtimer = it; - splx(s); + PROC_UNLOCK(td->td_proc); if (timevalcmp(&old_it.it_value, &tv, >)) { timevalsub(&old_it.it_value, &tv); if (old_it.it_value.tv_usec != 0) |
