[ARM] 4066/1: correct a comment about PXA's sched_clock range

Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
git-mirror · Dec 30, 2006 · 0c48d31 · 0c48d31
1 parent ae2aa90
commit 0c48d31
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
@@ -76,7 +76,9 @@ unsigned long long sched_clock(void)
 	/*
 	 * 96-bit math to perform tick * NSEC_PER_SEC / CLOCK_TICK_RATE for
 	 * any value of CLOCK_TICK_RATE. Max value is in the 80 thousand
-	 * years range which is nice, but with higher computation cost.
+	 * years range and truncation to unsigned long long limits it to
+	 * sched_clock's max range of ~584 years.  This is nice but with
+	 * higher computation cost.
 	 */
 	{
 		union {