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| author | Thomas Gleixner <tglx@linutronix.de> | 2019-04-14 18:00:05 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2019-04-17 15:34:21 +0200 |
| commit | 0ac26104208450d35c4e68754ce0c67b3a4d7802 (patch) | |
| tree | 4ef4dacaa0d180a40372188c544f3d337ab0d19e /arch/x86/kernel/cpu/common.c | |
| parent | 66c7ceb47f628c8bd4f84a6d01c2725ded6a342d (diff) | |
| download | linux-0ac26104208450d35c4e68754ce0c67b3a4d7802.tar.bz2 | |
x86/irq/64: Init hardirq_stack_ptr during CPU hotplug
Preparatory change for disentangling the irq stack union as a
prerequisite for irq stacks with guard pages.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "Chang S. Bae" <chang.seok.bae@intel.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Nicolai Stange <nstange@suse.de>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: x86-ml <x86@kernel.org>
Cc: Yi Wang <wang.yi59@zte.com.cn>
Link: https://lkml.kernel.org/r/20190414160146.177558566@linutronix.de
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 13ec72bb8f36..1222080838da 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1510,9 +1510,7 @@ DEFINE_PER_CPU(struct task_struct *, current_task) ____cacheline_aligned = &init_task; EXPORT_PER_CPU_SYMBOL(current_task); -DEFINE_PER_CPU(char *, hardirq_stack_ptr) = - init_per_cpu_var(irq_stack_union.irq_stack) + IRQ_STACK_SIZE; - +DEFINE_PER_CPU(char *, hardirq_stack_ptr); DEFINE_PER_CPU(unsigned int, irq_count) __visible = -1; DEFINE_PER_CPU(int, __preempt_count) = INIT_PREEMPT_COUNT; |