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authorZhu Guihua <zhugh.fnst@cn.fujitsu.com>2015-07-03 17:37:18 +0800
committerIngo Molnar <mingo@kernel.org>2015-07-06 15:00:33 +0200
commit1db875631f8d5bbf497f67e47f254eece888d51d (patch)
tree5a593314db2959c413e20695b6db1bfbef6a22ed /arch/x86/kernel/espfix_64.c
parentd6f2d75a7ae06ffd793bb504c4f0d1665548cffc (diff)
downloadlinux-1db875631f8d5bbf497f67e47f254eece888d51d.tar.bz2
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>
Diffstat (limited to 'arch/x86/kernel/espfix_64.c')
-rw-r--r--arch/x86/kernel/espfix_64.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c
index f5d0730e7b08..1fb0e0003c94 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;