diff options
| author | Oleg Nesterov <oleg@tv-sign.ru> | 2005-10-24 14:36:28 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-24 08:12:35 -0700 |
| commit | ca531a0a5e01e5122f67cb6aca8fcbfc70e18e0b (patch) | |
| tree | 4dc28c012d1bb78aba82acdcd2462d17020ba77e /kernel | |
| parent | 3de463c7d9d58f8cf3395268230cb20a4c15bffa (diff) | |
| download | lwn-ca531a0a5e01e5122f67cb6aca8fcbfc70e18e0b.tar.gz lwn-ca531a0a5e01e5122f67cb6aca8fcbfc70e18e0b.zip | |
[PATCH] posix-timers: exit path cleanup
No need to rebalance when task exited
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/posix-cpu-timers.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c index ccb04683bf18..92a038064628 100644 --- a/kernel/posix-cpu-timers.c +++ b/kernel/posix-cpu-timers.c @@ -486,6 +486,9 @@ static void process_timer_rebalance(struct task_struct *p, struct task_struct *t = p; unsigned int nthreads = atomic_read(&p->signal->live); + if (!nthreads) + return; + switch (clock_idx) { default: BUG(); @@ -1160,6 +1163,9 @@ static void check_process_timers(struct task_struct *tsk, unsigned long long sched_left, sched; const unsigned int nthreads = atomic_read(&sig->live); + if (!nthreads) + return; + prof_left = cputime_sub(prof_expires, utime); prof_left = cputime_sub(prof_left, stime); prof_left = cputime_div(prof_left, nthreads); |