diff options
| author | Jan Beulich <JBeulich@suse.com> | 2014-11-04 11:26:42 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2014-11-04 22:13:28 +0300 |
| commit | 2c773dd31fbacbbb6425f8a9d3f97e0010272368 (patch) | |
| tree | 6f531b6c8527ec2adf2b892dc1b9e98be9526407 /arch/x86/include/asm/processor.h | |
| parent | fb7183ef3c016d9067ff83f3ff2455be1818f902 (diff) | |
| download | linux-2c773dd31fbacbbb6425f8a9d3f97e0010272368.tar.xz | |
x86: Convert a few more per-CPU items to read-mostly ones
Both this_cpu_off and cpu_info aren't getting modified post boot, yet
are being accessed on enough code paths that grouping them with other
frequently read items seems desirable. For cpu_info this at the same
time implies removing the cache line alignment (which afaict became
pointless when it got converted to per-CPU data years ago).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/54589BD20200007800044A84@mail.emea.novell.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/processor.h')
| -rw-r--r-- | arch/x86/include/asm/processor.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index eb71ec794732..3aeb31cc0511 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -127,7 +127,7 @@ struct cpuinfo_x86 { /* Index into per_cpu list: */ u16 cpu_index; u32 microcode; -} __attribute__((__aligned__(SMP_CACHE_BYTES))); +}; #define X86_VENDOR_INTEL 0 #define X86_VENDOR_CYRIX 1 @@ -151,7 +151,7 @@ extern __u32 cpu_caps_cleared[NCAPINTS]; extern __u32 cpu_caps_set[NCAPINTS]; #ifdef CONFIG_SMP -DECLARE_PER_CPU_SHARED_ALIGNED(struct cpuinfo_x86, cpu_info); +DECLARE_PER_CPU_READ_MOSTLY(struct cpuinfo_x86, cpu_info); #define cpu_data(cpu) per_cpu(cpu_info, cpu) #else #define cpu_info boot_cpu_data |