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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-27 18:38:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-27 18:38:55 -0700 |
| commit | 0671b7674f42ab3a200401ea0e48d6f47d34acae (patch) | |
| tree | a35d3347e927dfe621f42ff82289f61f45564393 /arch/x86/kernel/smp.c | |
| parent | 0b2d8d9e562de3ee2476f549549e4fefbb7a4213 (diff) | |
| parent | 47f19a0814e80e1d4e5c17d61b70fca85ea09162 (diff) | |
| download | linux-0671b7674f42ab3a200401ea0e48d6f47d34acae.tar.gz linux-0671b7674f42ab3a200401ea0e48d6f47d34acae.tar.bz2 linux-0671b7674f42ab3a200401ea0e48d6f47d34acae.zip | |
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
percpu: Remove the multi-page alignment facility
x86-32: Allocate irq stacks seperate from percpu area
x86-32, mm: Remove duplicated #include
x86, printk: Get rid of <0> from stack output
x86, kexec: Make sure to stop all CPUs before exiting the kernel
x86/vsmp: Eliminate kconfig dependency warning
Diffstat (limited to 'arch/x86/kernel/smp.c')
| -rw-r--r-- | arch/x86/kernel/smp.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c index d801210945d6..513deac7228d 100644 --- a/arch/x86/kernel/smp.c +++ b/arch/x86/kernel/smp.c @@ -159,10 +159,10 @@ asmlinkage void smp_reboot_interrupt(void) irq_exit(); } -static void native_smp_send_stop(void) +static void native_stop_other_cpus(int wait) { unsigned long flags; - unsigned long wait; + unsigned long timeout; if (reboot_force) return; @@ -179,9 +179,12 @@ static void native_smp_send_stop(void) if (num_online_cpus() > 1) { apic->send_IPI_allbutself(REBOOT_VECTOR); - /* Don't wait longer than a second */ - wait = USEC_PER_SEC; - while (num_online_cpus() > 1 && wait--) + /* + * Don't wait longer than a second if the caller + * didn't ask us to wait. + */ + timeout = USEC_PER_SEC; + while (num_online_cpus() > 1 && (wait || timeout--)) udelay(1); } @@ -227,7 +230,7 @@ struct smp_ops smp_ops = { .smp_prepare_cpus = native_smp_prepare_cpus, .smp_cpus_done = native_smp_cpus_done, - .smp_send_stop = native_smp_send_stop, + .stop_other_cpus = native_stop_other_cpus, .smp_send_reschedule = native_smp_send_reschedule, .cpu_up = native_cpu_up, |