diff options
| author | Zhu Guihua <zhugh.fnst@cn.fujitsu.com> | 2015-07-03 17:37:18 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-07-06 15:00:33 +0200 |
| commit | 1db875631f8d5bbf497f67e47f254eece888d51d (patch) | |
| tree | 5a593314db2959c413e20695b6db1bfbef6a22ed | |
| parent | d6f2d75a7ae06ffd793bb504c4f0d1665548cffc (diff) | |
| download | linux-1db875631f8d5bbf497f67e47f254eece888d51d.tar.gz | |
x86/espfix: Add 'cpu' parameter to init_espfix_ap()
Add a CPU index parameter to init_espfix_ap(), so that the
parameter could be propagated to the function for espfix
page allocation.
Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
Cc: <bp@alien8.de>
Cc: <luto@amacapital.net>
Cc: <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/cde3fcf1b3211f3f03feb1a995bce3fee850f0fc.1435824469.git.zhugh.fnst@cn.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/include/asm/espfix.h | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/espfix_64.c | 7 | ||||
| -rw-r--r-- | arch/x86/kernel/smpboot.c | 2 |
3 files changed, 5 insertions, 6 deletions
diff --git a/arch/x86/include/asm/espfix.h b/arch/x86/include/asm/espfix.h index 99efebb2f69df5..ca3ce9ab938533 100644 --- a/arch/x86/include/asm/espfix.h +++ b/arch/x86/include/asm/espfix.h @@ -9,7 +9,7 @@ DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_stack); DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_waddr); extern void init_espfix_bsp(void); -extern void init_espfix_ap(void); +extern void init_espfix_ap(int cpu); #endif /* CONFIG_X86_64 */ diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c index f5d0730e7b084b..1fb0e0003c946b 100644 --- a/arch/x86/kernel/espfix_64.c +++ b/arch/x86/kernel/espfix_64.c @@ -131,12 +131,12 @@ void __init init_espfix_bsp(void) init_espfix_random(); /* The rest is the same as for any other processor */ - init_espfix_ap(); + init_espfix_ap(0); } -void init_espfix_ap(void) +void init_espfix_ap(int cpu) { - unsigned int cpu, page; + unsigned int page; unsigned long addr; pud_t pud, *pud_p; pmd_t pmd, *pmd_p; @@ -149,7 +149,6 @@ void init_espfix_ap(void) if (likely(this_cpu_read(espfix_stack))) return; /* Already initialized */ - cpu = smp_processor_id(); addr = espfix_base_addr(cpu); page = cpu/ESPFIX_STACKS_PER_PAGE; diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 8add66b22f333c..6f5abac6c28b5a 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -242,7 +242,7 @@ static void notrace start_secondary(void *unused) * Enable the espfix hack for this CPU */ #ifdef CONFIG_X86_ESPFIX64 - init_espfix_ap(); + init_espfix_ap(smp_processor_id()); #endif /* |