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Commit f6fb0ac0 authored by Andi Kleen's avatar Andi Kleen Committed by H. Peter Anvin
Browse files

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: default avatarAndi Kleen <ak@linux.intel.com>
Signed-off-by: default avatarHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
parent ca84f696

arch/x86/include/asm/mce.h

+1 −1
Original line number Diff line number Diff line
@@ -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];

};

arch/x86/kernel/cpu/mcheck/mce.c

+3 −2
Original line number Diff line number Diff line
@@ -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)