diff options
| author | Ingo Molnar <mingo@kernel.org> | 2017-03-28 08:54:25 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-03-28 08:54:25 +0200 |
| commit | 4a96d1a5f0c51a0c991fb47160eca305ba628110 (patch) | |
| tree | 42a33c4a256f6353256e7a5b0edc4285d0a65901 /arch/x86/kernel/cpu/mcheck | |
| parent | 5204bf17031b69fa5faa4dc80a9dc1e2446d74f9 (diff) | |
| parent | cc66afea58f858ff6da7f79b8a595a67bbb4f9a9 (diff) | |
| download | linux-4a96d1a5f0c51a0c991fb47160eca305ba628110.tar.bz2 | |
Merge branch 'ras/urgent' into ras/core, to pick up fix
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/cpu/mcheck')
| -rw-r--r-- | arch/x86/kernel/cpu/mcheck/mce.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 5e365a2fabe5..e95e02734f25 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -55,6 +55,8 @@ static DEFINE_MUTEX(mce_chrdev_read_mutex); +static int mce_chrdev_open_count; /* #times opened */ + #define mce_log_get_idx_check(p) \ ({ \ RCU_LOCKDEP_WARN(!rcu_read_lock_sched_held() && \ @@ -599,6 +601,10 @@ static int mce_default_notifier(struct notifier_block *nb, unsigned long val, if (atomic_read(&num_notifiers) > 2) return NOTIFY_DONE; + /* Don't print when mcelog is running */ + if (mce_chrdev_open_count > 0) + return NOTIFY_DONE; + __print_mce(m); return NOTIFY_DONE; @@ -1848,7 +1854,6 @@ void mcheck_cpu_clear(struct cpuinfo_x86 *c) */ static DEFINE_SPINLOCK(mce_chrdev_state_lock); -static int mce_chrdev_open_count; /* #times opened */ static int mce_chrdev_open_exclu; /* already open exclusive? */ static int mce_chrdev_open(struct inode *inode, struct file *file) |