Commit f33a5d4b authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Thomas Gleixner
Browse files

clocksource: Fix comments on WATCHDOG_THRESHOLD & WATCHDOG_MAX_SKEW 



The WATCHDOG_THRESHOLD macro is no longer used to supply a default value
for ->uncertainty_margin, but WATCHDOG_MAX_SKEW now is.

Therefore, update the comments to reflect this change.

Reported-by: default avatarBorislav Petkov <bp@alien8.de>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Acked-by: default avatarBorislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/all/20240802154618.4149953-3-paulmck@kernel.org
parent 17915131

kernel/time/clocksource.c

+7 −1
Original line number Diff line number Diff line
@@ -113,7 +113,6 @@ static u64 suspend_start; 


/*

 * Threshold: 0.0312s, when doubled: 0.0625s.

 * Also a default for cs->uncertainty_margin when registering clocks.

 */

#define WATCHDOG_THRESHOLD (NSEC_PER_SEC >> 5)
@@ -139,6 +138,13 @@ static u64 suspend_start; 
#define MAX_SKEW_USEC	(125 * WATCHDOG_INTERVAL / HZ)

#endif



/*

 * Default for maximum permissible skew when cs->uncertainty_margin is

 * not specified, and the lower bound even when cs->uncertainty_margin

 * is specified.  This is also the default that is used when registering

 * clocks with unspecifed cs->uncertainty_margin, so this macro is used

 * even in CONFIG_CLOCKSOURCE_WATCHDOG=n kernels.

 */

#define WATCHDOG_MAX_SKEW (MAX_SKEW_USEC * NSEC_PER_USEC)



#ifdef CONFIG_CLOCKSOURCE_WATCHDOG