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Commit df43510b authored by Ingo Molnar's avatar Ingo Molnar
Browse files

x86: check_tsc_warp() slowness fix 



100 million max # of loops is a bit too much - reduce it to 10 million.

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent ade1af77

arch/x86/kernel/tsc_sync.c

+2 −2
Original line number Diff line number Diff line
@@ -67,12 +67,12 @@ static __cpuinit void check_tsc_warp(void) 


		/*

		 * Be nice every now and then (and also check whether

		 * measurement is done [we also insert a 100 million

		 * measurement is done [we also insert a 10 million

		 * loops safety exit, so we dont lock up in case the

		 * TSC readout is totally broken]):

		 */

		if (unlikely(!(i & 7))) {

			if (now > end || i > 100000000)

			if (now > end || i > 10000000)

				break;

			cpu_relax();

			touch_nmi_watchdog();