diff options
| author | Andrew Morton <akpm@osdl.org> | 2005-11-09 15:45:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-09 16:07:44 -0800 |
| commit | e4d76e1c0b15590f2ad9bba89426c2520cd22ca6 (patch) | |
| tree | 077aa0dd49bc49e93e18ec9645443b185d513094 /arch | |
| parent | a47ab9371e664952b1104a70ec8e9b74db3f7a5f (diff) | |
| download | op-kernel-dev-e4d76e1c0b15590f2ad9bba89426c2520cd22ca6.zip op-kernel-dev-e4d76e1c0b15590f2ad9bba89426c2520cd22ca6.tar.gz | |
[PATCH] powerpc: sched fixups
- Re-add a hunk lost during merge: ppc64 is missing the hunk that disables
preempt on the secondary CPUs before they call cpu_idle().
- ppc's cpu_idle() had the need_resched() test wrong.
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 1 | ||||
| -rw-r--r-- | arch/ppc/kernel/idle.c | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 5c330c3..36d67a8 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -510,6 +510,7 @@ int __devinit start_secondary(void *unused) smp_store_cpu_info(cpu); set_dec(tb_ticks_per_jiffy); + preempt_disable(); cpu_callin_map[cpu] = 1; smp_ops->setup_cpu(cpu); diff --git a/arch/ppc/kernel/idle.c b/arch/ppc/kernel/idle.c index 3c4e4cb..821a75e 100644 --- a/arch/ppc/kernel/idle.c +++ b/arch/ppc/kernel/idle.c @@ -63,7 +63,7 @@ void cpu_idle(void) int cpu = smp_processor_id(); for (;;) { - while (need_resched()) { + while (!need_resched()) { if (ppc_md.idle != NULL) ppc_md.idle(); else |
