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authorIngo Molnar <mingo@elte.hu>2009-01-19 12:36:09 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-19 12:36:09 +0100
commit7890ba8c87604ca4c2c73f7de846bf5305d743e4 (patch)
treef3f920c09b8de694b1bc1d4b878cfd2b0b98c913 /arch/x86/include/asm/pda.h
parent99937d6455cea95405ac681c86a857d0fcd530bd (diff)
parentb2b062b8163391c42b3219d466ca1ac9742b9c7b (diff)
Merge branch 'stackprotector' into core/percpu
Diffstat (limited to 'arch/x86/include/asm/pda.h')
-rw-r--r--arch/x86/include/asm/pda.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/pda.h b/arch/x86/include/asm/pda.h
index c31ca048a90..5976cd803e9 100644
--- a/arch/x86/include/asm/pda.h
+++ b/arch/x86/include/asm/pda.h
@@ -17,11 +17,9 @@ struct x8664_pda {
unsigned long unused4;
int unused5;
unsigned int unused6; /* 36 was cpunumber */
-#ifdef CONFIG_CC_STACKPROTECTOR
unsigned long stack_canary; /* 40 stack canary value */
/* gcc-ABI: this canary MUST be at
offset 40!!! */
-#endif
short in_bootmem; /* pda lives in bootmem */
} ____cacheline_aligned_in_smp;
@@ -42,4 +40,6 @@ extern void pda_init(int);
#endif
+#define refresh_stack_canary() write_pda(stack_canary, current->stack_canary)
+
#endif /* _ASM_X86_PDA_H */