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Diffstat (limited to 'arch/x86/kernel/cpu/mce/dev-mcelog.c')
-rw-r--r--arch/x86/kernel/cpu/mce/dev-mcelog.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/mce/dev-mcelog.c b/arch/x86/kernel/cpu/mce/dev-mcelog.c
index d089567a9ce8..c033e7ea9e3c 100644
--- a/arch/x86/kernel/cpu/mce/dev-mcelog.c
+++ b/arch/x86/kernel/cpu/mce/dev-mcelog.c
@@ -39,6 +39,9 @@ static int dev_mce_log(struct notifier_block *nb, unsigned long val,
struct mce *mce = (struct mce *)data;
unsigned int entry;
+ if (mce->kflags & MCE_HANDLED_CEC)
+ return NOTIFY_DONE;
+
mutex_lock(&mce_chrdev_read_mutex);
entry = mcelog->next;
@@ -56,6 +59,7 @@ static int dev_mce_log(struct notifier_block *nb, unsigned long val,
memcpy(mcelog->entry + entry, mce, sizeof(struct mce));
mcelog->entry[entry].finished = 1;
+ mcelog->entry[entry].kflags = 0;
/* wake processes polling /dev/mcelog */
wake_up_interruptible(&mce_chrdev_wait);
@@ -63,6 +67,7 @@ static int dev_mce_log(struct notifier_block *nb, unsigned long val,
unlock:
mutex_unlock(&mce_chrdev_read_mutex);
+ mce->kflags |= MCE_HANDLED_MCELOG;
return NOTIFY_OK;
}