Re: [patch 1/6 -rt] powerpc 2.6.20-rt8: add preemption checks for NEED_RESCHED_DELAYED.
flat view
From: Sergei Shtylyov <hidden>
Date: 2007-03-16 19:20:41
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Hello. Tsutomu OWA wrote:
To add preemption checks for the NEED_RESCHED_DELAYED flag.
quoted hunk ↗ jump to hunk
diff -rup linux-rt8/arch/powerpc/kernel/idle.c rt/arch/powerpc/kernel/idle.c--- linux-rt8/arch/powerpc/kernel/idle.c 2007-02-20 14:30:38.000000000 +0900 +++ rt/arch/powerpc/kernel/idle.c 2007-02-20 15:43:04.000000000 +0900@@ -56,7 +56,8 @@ void cpu_idle(void) set_thread_flag(TIF_POLLING_NRFLAG); while (1) { - while (!need_resched() && !cpu_should_die()) { + while (!need_resched() && !need_resched_delayed() && + !cpu_should_die()) { ppc64_runlatch_off(); if (ppc_md.power_save) {
Argh, I've missed this one! :-(
But shouldn't we also add !need_resched_delayed() to another place below?
if (ppc_md.power_save) {
[...]
if (!need_resched() && !cpu_should_die())
WBR, Sergei