Commit 06aa0305 authored by Brian Gerst's avatar Brian Gerst Committed by Ingo Molnar
Browse files

x86/smp: Move this_cpu_off to percpu hot section 



No functional change.

Signed-off-by: default avatarBrian Gerst <brgerst@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
Acked-by: default avatarUros Bizjak <ubizjak@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250303165246.2175811-12-brgerst@gmail.com
parent f3856cd3

arch/x86/include/asm/percpu.h

+1 −1
Original line number Diff line number Diff line
@@ -586,7 +586,7 @@ do { \ 
#include <asm-generic/percpu.h>



/* We can use this directly for local CPU (faster). */

DECLARE_PER_CPU_READ_MOSTLY(unsigned long, this_cpu_off);

DECLARE_PER_CPU_CACHE_HOT(unsigned long, this_cpu_off);



#endif /* !__ASSEMBLY__ */

arch/x86/kernel/setup_percpu.c

+1 −1
Original line number Diff line number Diff line
@@ -26,7 +26,7 @@ 
DEFINE_PER_CPU_CACHE_HOT(int, cpu_number);

EXPORT_PER_CPU_SYMBOL(cpu_number);



DEFINE_PER_CPU_READ_MOSTLY(unsigned long, this_cpu_off);

DEFINE_PER_CPU_CACHE_HOT(unsigned long, this_cpu_off);

EXPORT_PER_CPU_SYMBOL(this_cpu_off);



unsigned long __per_cpu_offset[NR_CPUS] __ro_after_init;