Messages in this thread Patch in this message | | | Date | Thu, 13 May 2021 14:33:54 +0800 | From | Jisheng Zhang <> | Subject | [PATCH] timer: Use static_branch_likely() for timers_nohz_active |
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NOHZ is likely to be enabled, so use static_branch_likely() to reflect this fact. This could improve the finally generated code a bit for the most likely scenario, I.E save two "jmp" instructions.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> --- kernel/time/timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/time/timer.c b/kernel/time/timer.c index d111adf4a0cb..40d4fe7fa207 100644 --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -265,7 +265,7 @@ int timer_migration_handler(struct ctl_table *table, int write, static inline bool is_timers_nohz_active(void) { - return static_branch_unlikely(&timers_nohz_active); + return static_branch_likely(&timers_nohz_active); } #else static inline bool is_timers_nohz_active(void) { return false; } -- 2.31.0
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