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Commit b0d6e2dc authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Ingo Molnar
Browse files

timers: Reduce the CPU index space to 256k 



We want to store the array index in the flags space. 256k CPUs should be
enough for a while.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Chris Mason <clm@fb.com>
Cc: George Spelvin <linux@sciencehorizons.net>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160704094342.030144293@linutronix.de


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 494af3ed

include/linux/timer.h

+5 −5
Original line number Original line Diff line number Diff line
@@ -58,12 +58,12 @@ struct timer_list { 
 * workqueue locking issues. It's not meant for executing random crap

 * workqueue locking issues. It's not meant for executing random crap

 * with interrupts disabled. Abuse is monitored!

 * with interrupts disabled. Abuse is monitored!

 */

 */

#define TIMER_CPUMASK		0x0007FFFF

#define TIMER_CPUMASK		0x0003FFFF

#define TIMER_MIGRATING		0x00080000

#define TIMER_MIGRATING		0x00040000

#define TIMER_BASEMASK		(TIMER_CPUMASK | TIMER_MIGRATING)

#define TIMER_BASEMASK		(TIMER_CPUMASK | TIMER_MIGRATING)

#define TIMER_DEFERRABLE	0x00100000

#define TIMER_DEFERRABLE	0x00080000

#define TIMER_PINNED		0x00200000

#define TIMER_PINNED		0x00100000

#define TIMER_IRQSAFE		0x00400000

#define TIMER_IRQSAFE		0x00200000





#define __TIMER_INITIALIZER(_function, _expires, _data, _flags) { \

#define __TIMER_INITIALIZER(_function, _expires, _data, _flags) { \

		.entry = { .next = TIMER_ENTRY_STATIC },	\

		.entry = { .next = TIMER_ENTRY_STATIC },	\