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| author |   Brian Gerst <brgerst@gmail.com> | 2025-03-03 11:52:43 -0500 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2025-03-04 20:30:33 +0100 |
| commit | 385f72c83eb609652f02dc9ee415520c23bda629 (patch) | |
| tree | 5fedbaef186254ce81ce416b7a231590278ebb2d /arch/x86/kernel/cpu/common.c | |
| parent | x86/irq: Move irq stacks to percpu hot section (diff) | |
| download | wireguard-linux-385f72c83eb609652f02dc9ee415520c23bda629.tar.xz wireguard-linux-385f72c83eb609652f02dc9ee415520c23bda629.zip | |
x86/percpu: Move top_of_stack to percpu hot section
No functional change.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250303165246.2175811-9-brgerst@gmail.com
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index fd224ae57d62..51653e01a716 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -2066,7 +2066,6 @@ __setup("setcpuid=", setup_setcpuid); DEFINE_PER_CPU_CACHE_HOT(struct pcpu_hot, pcpu_hot) = { .current_task = &init_task, - .top_of_stack = TOP_OF_INIT_STACK, }; EXPORT_PER_CPU_SYMBOL(pcpu_hot); EXPORT_PER_CPU_SYMBOL(const_pcpu_hot); @@ -2074,6 +2073,8 @@ EXPORT_PER_CPU_SYMBOL(const_pcpu_hot); DEFINE_PER_CPU_CACHE_HOT(int, __preempt_count) = INIT_PREEMPT_COUNT; EXPORT_PER_CPU_SYMBOL(__preempt_count); +DEFINE_PER_CPU_CACHE_HOT(unsigned long, cpu_current_top_of_stack) = TOP_OF_INIT_STACK; + #ifdef CONFIG_X86_64 /* * Note: Do not make this dependant on CONFIG_MITIGATION_CALL_DEPTH_TRACKING |