diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2022-09-15 13:11:03 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-10-17 16:41:04 +0200 |
| commit | 7443b296e699e6922f5be243c8d2e316de8cacbe (patch) | |
| tree | ded4114cf1e1c70d98286916c410fc49a4c46209 /arch/x86/kernel/setup_percpu.c | |
| parent | 64701838bf0575ef8acb1ad2db5934e864f3e6c3 (diff) | |
x86/percpu: Move cpu_number next to current_task
Also add cpu_number to the pcpu_hot structure, it is often referenced
and this cacheline is there.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220915111145.387678283@infradead.org
Diffstat (limited to 'arch/x86/kernel/setup_percpu.c')
| -rw-r--r-- | arch/x86/kernel/setup_percpu.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 555089a5b446..c2fc4c41c164 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -23,9 +23,6 @@ #include <asm/cpu.h> #include <asm/stackprotector.h> -DEFINE_PER_CPU_READ_MOSTLY(int, cpu_number); -EXPORT_PER_CPU_SYMBOL(cpu_number); - #ifdef CONFIG_X86_64 #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load) #else @@ -172,7 +169,7 @@ void __init setup_per_cpu_areas(void) for_each_possible_cpu(cpu) { per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu]; per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu); - per_cpu(cpu_number, cpu) = cpu; + per_cpu(pcpu_hot.cpu_number, cpu) = cpu; setup_percpu_segment(cpu); /* * Copy data used in early init routines from the |