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x86/nmi: Improve NMI duration console printouts

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Convert the last remaining printk() in nmi.c to pr_info(). Along with
it, use timespec macros to calculate the NMI handler duration.

Signed-off-by: Sohil Mehta <sohil.mehta@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Kai Huang <kai.huang@intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Nikolay Borisov <nik.borisov@suse.com>
Link: https://lore.kernel.org/r/20250327234629.3953536-10-sohil.mehta@intel.com
This commit is contained in:
Sohil Mehta
2025-03-27 23:46:29 +00:00
committed by Ingo Molnar
parent 05279a2863
commit f2e01dcf6d
1 changed files with 5 additions and 5 deletions
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10
arch/x86/kernel/nmi.c
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@@ -119,12 +119,12 @@ static void nmi_check_duration(struct nmiaction *action, u64 duration)
action->max_duration = duration;
remainder_ns = do_div(duration, (1000 * 1000));
decimal_msecs = remainder_ns / 1000;
/* Convert duration from nsec to msec */
remainder_ns = do_div(duration, NSEC_PER_MSEC);
decimal_msecs = remainder_ns / NSEC_PER_USEC;
printk_ratelimited(KERN_INFO
"INFO: NMI handler (%ps) took too long to run: %lld.%03d msecs\n",
action->handler, duration, decimal_msecs);
pr_info_ratelimited("INFO: NMI handler (%ps) took too long to run: %lld.%03d msecs\n",
action->handler, duration, decimal_msecs);
}
static int nmi_handle(unsigned int type, struct pt_regs *regs)