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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2007-05-09 02:35:11 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-09 12:30:56 -0700 |
| commit | 455c017ae3934797653549704c286e7bcc3a9397 (patch) | |
| tree | 7b5b67916b064e3ce7868082e0915f37b437aeb8 /kernel | |
| parent | 8bb7844286fb8c9fce6f65d8288aeb09d03a5e0d (diff) | |
| download | linux-455c017ae3934797653549704c286e7bcc3a9397.tar.gz linux-455c017ae3934797653549704c286e7bcc3a9397.tar.bz2 linux-455c017ae3934797653549704c286e7bcc3a9397.zip | |
microcode: use suspend-related CPU hotplug notifications
Make the microcode driver use the suspend-related CPU hotplug notifications
to handle the CPU hotplug events occuring during system-wide suspend and
resume transitions. Remove the global variable suspend_cpu_hotplug
previously used for this purpose.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cpu.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 369d2892687d..208cf3497c10 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -262,12 +262,6 @@ int __cpuinit cpu_up(unsigned int cpu) } #ifdef CONFIG_SUSPEND_SMP -/* Needed to prevent the microcode driver from requesting firmware in its CPU - * hotplug notifier during the suspend/resume. - */ -int suspend_cpu_hotplug; -EXPORT_SYMBOL(suspend_cpu_hotplug); - static cpumask_t frozen_cpus; int disable_nonboot_cpus(void) @@ -275,7 +269,6 @@ int disable_nonboot_cpus(void) int cpu, first_cpu, error = 0; mutex_lock(&cpu_add_remove_lock); - suspend_cpu_hotplug = 1; first_cpu = first_cpu(cpu_online_map); /* We take down all of the non-boot CPUs in one shot to avoid races * with the userspace trying to use the CPU hotplug at the same time @@ -302,7 +295,6 @@ int disable_nonboot_cpus(void) } else { printk(KERN_ERR "Non-boot CPUs are not disabled\n"); } - suspend_cpu_hotplug = 0; mutex_unlock(&cpu_add_remove_lock); return error; } @@ -317,7 +309,6 @@ void enable_nonboot_cpus(void) if (cpus_empty(frozen_cpus)) goto out; - suspend_cpu_hotplug = 1; printk("Enabling non-boot CPUs ...\n"); for_each_cpu_mask(cpu, frozen_cpus) { error = _cpu_up(cpu, 1); @@ -328,7 +319,6 @@ void enable_nonboot_cpus(void) printk(KERN_WARNING "Error taking CPU%d up: %d\n", cpu, error); } cpus_clear(frozen_cpus); - suspend_cpu_hotplug = 0; out: mutex_unlock(&cpu_add_remove_lock); } |