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| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2010-04-27 14:12:15 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-05-10 14:24:26 +0200 |
| commit | 29f87b793da421a6ab816d991dc8dbf909dfb66a (patch) | |
| tree | 807e95b5f7a41f163000d24f82e85afa96eccdd2 /arch | |
| parent | dbb6be6d5e974c42bbecd183effaa0df69e1dd8b (diff) | |
| download | linux-29f87b793da421a6ab816d991dc8dbf909dfb66a.tar.bz2 | |
posix-cpu-timers: Optimize run_posix_cpu_timers()
We can optimize and simplify things taking into account signal->cputimer
is always running when we have configured any process wide cpu timer.
In check_process_timers(), we don't have to check if new updated value of
signal->cputime_expires is smaller, since we maintain new first expiration
time ({prof,virt,sched}_expires) in code flow and all other writes to
expiration cache are protected by sighand->siglock .
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions