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| 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/kernel/setup_percpu.c | |
| 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/kernel/setup_percpu.c')
| -rw-r--r-- | arch/x86/kernel/setup_percpu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 5cdff0357746..e4fcb87ba7a6 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -30,7 +30,7 @@ EXPORT_PER_CPU_SYMBOL(cpu_number); #define BOOT_PERCPU_OFFSET 0 #endif -DEFINE_PER_CPU(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET; +DEFINE_PER_CPU_READ_MOSTLY(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET; EXPORT_PER_CPU_SYMBOL(this_cpu_off); unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = { |