Messages in this thread Patch in this message | | | Date | Thu, 7 Jul 2016 01:45:23 -0700 | From | tip-bot for Thomas Gleixner <> | Subject | [tip:timers/core] timers: Reduce the CPU index space to 256k |
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Commit-ID: b0d6e2dcb284f1f4dcb4b92760f49eeaf5fc0bc7 Gitweb: http://git.kernel.org/tip/b0d6e2dcb284f1f4dcb4b92760f49eeaf5fc0bc7 Author: Thomas Gleixner <tglx@linutronix.de> AuthorDate: Mon, 4 Jul 2016 09:50:29 +0000 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Thu, 7 Jul 2016 10:35:08 +0200
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: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Frederic 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: Ingo Molnar <mingo@kernel.org> --- include/linux/timer.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/timer.h b/include/linux/timer.h index a8f6c70..989f33d 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -58,12 +58,12 @@ struct timer_list { * workqueue locking issues. It's not meant for executing random crap * with interrupts disabled. Abuse is monitored! */ -#define TIMER_CPUMASK 0x0007FFFF -#define TIMER_MIGRATING 0x00080000 +#define TIMER_CPUMASK 0x0003FFFF +#define TIMER_MIGRATING 0x00040000 #define TIMER_BASEMASK (TIMER_CPUMASK | TIMER_MIGRATING) -#define TIMER_DEFERRABLE 0x00100000 -#define TIMER_PINNED 0x00200000 -#define TIMER_IRQSAFE 0x00400000 +#define TIMER_DEFERRABLE 0x00080000 +#define TIMER_PINNED 0x00100000 +#define TIMER_IRQSAFE 0x00200000 #define __TIMER_INITIALIZER(_function, _expires, _data, _flags) { \ .entry = { .next = TIMER_ENTRY_STATIC }, \
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