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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2008-08-08 21:47:09 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-11 13:46:53 +0200 |
| commit | b845b517b5e3706a3729f6ea83b88ab85f0725b0 (patch) | |
| tree | 4311e4c2e6c3fdbdbe89149d1501944294186455 /kernel/timer.c | |
| parent | 796aadeb1b2db9b5d463946766c5bbfd7717158c (diff) | |
| download | lwn-b845b517b5e3706a3729f6ea83b88ab85f0725b0.tar.gz lwn-b845b517b5e3706a3729f6ea83b88ab85f0725b0.zip | |
printk: robustify printk
Avoid deadlocks against rq->lock and xtime_lock by deferring the klogd
wakeup by polling from the timer tick.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/timer.c')
| -rw-r--r-- | kernel/timer.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/timer.c b/kernel/timer.c index 03bc7f1f1593..510fe69351ca 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -978,6 +978,7 @@ void update_process_times(int user_tick) run_local_timers(); if (rcu_pending(cpu)) rcu_check_callbacks(cpu, user_tick); + printk_tick(); scheduler_tick(); run_posix_cpu_timers(p); } |