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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-08-04 15:28:59 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-08-04 15:28:59 -0700 |
commit | 067e18133f01ee0136bcec2633eb93f7320721a2 (patch) | |
tree | eb948a629b8b5c59a0fd15e7659e6252349738f2 /arch/x86/lib/msr.c | |
parent | 3f5760b90eb3bacfaa4d4c3e584152468ed327ca (diff) | |
parent | dc731fbbadf5d65c98fcd6c86472aa286c16458a (diff) |
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:
x86: Work around compilation warning in arch/x86/kernel/apm_32.c
x86, UV: Complete IRQ interrupt migration in arch_enable_uv_irq()
x86, 32-bit: Fix double accounting in reserve_top_address()
x86: Don't use current_cpu_data in x2apic phys_pkg_id
x86, UV: Fix UV apic mode
x86, UV: Fix macros for accessing large node numbers
x86, UV: Delete mapping of MMR rangs mapped by BIOS
x86, UV: Handle missing blade-local memory correctly
x86: fix assembly constraints in native_save_fl()
x86, msr: execute on the correct CPU subset
x86: Fix assert syntax in vmlinux.lds.S
x86: Make 64-bit efi_ioremap use ioremap on MMIO regions
x86: Add quirk to make Apple MacBook5,2 use reboot=pci
x86: Fix CPA memtype reserving in the set_pages_array*() cases
x86, pat: Fix set_memory_wc related corruption
x86: fix section mismatch for i386 init code
Diffstat (limited to 'arch/x86/lib/msr.c')
-rw-r--r-- | arch/x86/lib/msr.c | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/arch/x86/lib/msr.c b/arch/x86/lib/msr.c index 1440b9c0547..caa24aca811 100644 --- a/arch/x86/lib/msr.c +++ b/arch/x86/lib/msr.c @@ -89,16 +89,13 @@ void rdmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs) rv.msrs = msrs; rv.msr_no = msr_no; - preempt_disable(); - /* - * FIXME: handle the CPU we're executing on separately for now until - * smp_call_function_many has been fixed to not skip it. - */ - this_cpu = raw_smp_processor_id(); - smp_call_function_single(this_cpu, __rdmsr_on_cpu, &rv, 1); + this_cpu = get_cpu(); + + if (cpumask_test_cpu(this_cpu, mask)) + __rdmsr_on_cpu(&rv); smp_call_function_many(mask, __rdmsr_on_cpu, &rv, 1); - preempt_enable(); + put_cpu(); } EXPORT_SYMBOL(rdmsr_on_cpus); @@ -121,16 +118,13 @@ void wrmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs) rv.msrs = msrs; rv.msr_no = msr_no; - preempt_disable(); - /* - * FIXME: handle the CPU we're executing on separately for now until - * smp_call_function_many has been fixed to not skip it. - */ - this_cpu = raw_smp_processor_id(); - smp_call_function_single(this_cpu, __wrmsr_on_cpu, &rv, 1); + this_cpu = get_cpu(); + + if (cpumask_test_cpu(this_cpu, mask)) + __wrmsr_on_cpu(&rv); smp_call_function_many(mask, __wrmsr_on_cpu, &rv, 1); - preempt_enable(); + put_cpu(); } EXPORT_SYMBOL(wrmsr_on_cpus); |