diff options
| author |   Alexey Dobriyan <adobriyan@openvz.org> | 2007-02-13 13:26:23 +0100 |
|---|---|---|
| committer |   Andi Kleen <andi@basil.nowhere.org> | 2007-02-13 13:26:23 +0100 |
| commit | ad4e680fb2220518de5118a8e734240d4c374fe2 (patch) | |
| tree | 460edf1431dac96ac9e9537478548a2a98421005 /arch/i386/kernel/cpuid.c | |
| parent | [PATCH] i386: use smp_call_function_single() (diff) | |
| download | linux-dev-ad4e680fb2220518de5118a8e734240d4c374fe2.tar.xz linux-dev-ad4e680fb2220518de5118a8e734240d4c374fe2.zip | |
[PATCH] i386: use smp_call_function_single()
It will execure cpuid only on the cpu we need.
Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/i386/kernel/cpuid.c')
| -rw-r--r-- | arch/i386/kernel/cpuid.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/arch/i386/kernel/cpuid.c b/arch/i386/kernel/cpuid.c index 4da75fa3208d..eeae0d992337 100644 --- a/arch/i386/kernel/cpuid.c +++ b/arch/i386/kernel/cpuid.c @@ -48,7 +48,6 @@ static struct class *cpuid_class; #ifdef CONFIG_SMP struct cpuid_command { - int cpu; u32 reg; u32 *data; }; @@ -57,8 +56,7 @@ static void cpuid_smp_cpuid(void *cmd_block) { struct cpuid_command *cmd = (struct cpuid_command *)cmd_block; - if (cmd->cpu == smp_processor_id()) - cpuid(cmd->reg, &cmd->data[0], &cmd->data[1], &cmd->data[2], + cpuid(cmd->reg, &cmd->data[0], &cmd->data[1], &cmd->data[2], &cmd->data[3]); } @@ -70,11 +68,10 @@ static inline void do_cpuid(int cpu, u32 reg, u32 * data) if (cpu == smp_processor_id()) { cpuid(reg, &data[0], &data[1], &data[2], &data[3]); } else { - cmd.cpu = cpu; cmd.reg = reg; cmd.data = data; - smp_call_function(cpuid_smp_cpuid, &cmd, 1, 1); + smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1, 1); } preempt_enable(); } |