From f6fb0ac0869500323c78fa21992fe1933af61e91 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 27 May 2009 21:56:55 +0200 Subject: [PATCH] x86, mce: store record length into memory struct mce anchor This makes it easier for tools who want to extract the mcelog out of crash images or memory dumps to adapt to changing struct mce size. The length field replaces padding, so it's fully compatible. Signed-off-by: Andi Kleen Signed-off-by: Hidetoshi Seto Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/mce.h | 2 +- arch/x86/kernel/cpu/mcheck/mce.c | 5 +++-- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index 63abf3b19432..0a61946d4396 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -59,7 +59,7 @@ struct mce_log { unsigned len; /* = MCE_LOG_LEN */ unsigned next; unsigned flags; - unsigned pad0; + unsigned recordlen; /* length of struct mce */ struct mce entry[MCE_LOG_LEN]; }; diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 784f6ae9d6f4..3db047e7a0fb 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -108,8 +108,9 @@ EXPORT_PER_CPU_SYMBOL_GPL(injectm); */ static struct mce_log mcelog = { - MCE_LOG_SIGNATURE, - MCE_LOG_LEN, + .signature = MCE_LOG_SIGNATURE, + .len = MCE_LOG_LEN, + .recordlen = sizeof(struct mce), }; void mce_log(struct mce *mce)