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Merge branch 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS fix from Thomas Gleixner: "Prevent dmesg from being spammed when MCE logging is active" * 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce: Don't print MCEs when mcelog is active
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@ -54,6 +54,8 @@
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static DEFINE_MUTEX(mce_chrdev_read_mutex);
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static int mce_chrdev_open_count; /* #times opened */
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#define mce_log_get_idx_check(p) \
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({ \
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RCU_LOCKDEP_WARN(!rcu_read_lock_sched_held() && \
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@ -598,6 +600,10 @@ static int mce_default_notifier(struct notifier_block *nb, unsigned long val,
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if (atomic_read(&num_notifiers) > 2)
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return NOTIFY_DONE;
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/* Don't print when mcelog is running */
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if (mce_chrdev_open_count > 0)
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return NOTIFY_DONE;
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__print_mce(m);
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return NOTIFY_DONE;
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@ -1828,7 +1834,6 @@ void mcheck_cpu_clear(struct cpuinfo_x86 *c)
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*/
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static DEFINE_SPINLOCK(mce_chrdev_state_lock);
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static int mce_chrdev_open_count; /* #times opened */
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static int mce_chrdev_open_exclu; /* already open exclusive? */
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static int mce_chrdev_open(struct inode *inode, struct file *file)
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