Commit 2322b532 authored by Zhaolong Zhang's avatar Zhaolong Zhang Committed by Borislav Petkov
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x86/mce: Get rid of cpu_missing 



Get rid of cpu_missing because

  7bb39313 ("x86/mce: Make mce_timed_out() identify holdout CPUs")

provides a more detailed message about which CPUs are missing.

Suggested-by: default avatarBorislav Petkov <bp@suse.de>
Signed-off-by: default avatarZhaolong Zhang <zhangzl2013@126.com>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211109112345.2673403-1-zhangzl2013@126.com
parent 70aeb807

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

+0 −5
Original line number Diff line number Diff line
@@ -99,7 +99,6 @@ struct mca_config mca_cfg __read_mostly = { 


static DEFINE_PER_CPU(struct mce, mces_seen);

static unsigned long mce_need_notify;

static int cpu_missing;



/*

 * MCA banks polled by the period polling timer for corrected events.
@@ -314,8 +313,6 @@ static void mce_panic(const char *msg, struct mce *final, char *exp) 
		if (!apei_err)

			apei_err = apei_write_mce(final);

	}

	if (cpu_missing)

		pr_emerg(HW_ERR "Some CPUs didn't answer in synchronization\n");

	if (exp)

		pr_emerg(HW_ERR "Machine check: %s\n", exp);

	if (!fake_panic) {
@@ -891,7 +888,6 @@ static int mce_timed_out(u64 *t, const char *msg) 
					 cpumask_pr_args(&mce_missing_cpus));

			mce_panic(msg, NULL, NULL);

		}

		cpu_missing = 1;

		return 1;

	}

	*t -= SPINUNIT;
@@ -2702,7 +2698,6 @@ struct dentry *mce_get_debugfs_dir(void) 


static void mce_reset(void)

{

	cpu_missing = 0;

	atomic_set(&mce_fake_panicked, 0);

	atomic_set(&mce_executing, 0);

	atomic_set(&mce_callin, 0);