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authorBorislav Petkov <borislav.petkov@amd.com>2009-10-07 15:20:38 +0400
committerIngo Molnar <mingo@elte.hu>2009-10-12 14:24:45 +0400
commitfb2531953fd8855abdcf458459020fd382c5deca (patch)
tree2967323398aba0369bff02225f0e9d4d00db0c35 /arch/x86/include/asm/mce.h
parentd93a8f829fe1d2f3002f2c6ddb553d12db420412 (diff)
downloadlinux-fb2531953fd8855abdcf458459020fd382c5deca.tar.xz
mce, edac: Use an atomic notifier for MCEs decoding
Add an atomic notifier which ensures proper locking when conveying MCE info to EDAC for decoding. The actual notifier call overrides a default, negative priority notifier. Note: make sure we register the default decoder only once since mcheck_init() runs on each CPU. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <20091003065752.GA8935@liondog.tnic> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/mce.h')
-rw-r--r--arch/x86/include/asm/mce.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index f1363b72364f..227a72df6441 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -108,6 +108,8 @@ struct mce_log {
#define K8_MCE_THRESHOLD_BANK_5 (MCE_THRESHOLD_BASE + 5 * 9)
#define K8_MCE_THRESHOLD_DRAM_ECC (MCE_THRESHOLD_BANK_4 + 0)
+extern struct atomic_notifier_head x86_mce_decoder_chain;
+
#ifdef __KERNEL__
#include <linux/percpu.h>
@@ -213,6 +215,5 @@ extern void (*threshold_cpu_callback)(unsigned long action, unsigned int cpu);
void intel_init_thermal(struct cpuinfo_x86 *c);
void mce_log_therm_throt_event(__u64 status);
-
#endif /* __KERNEL__ */
#endif /* _ASM_X86_MCE_H */