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f12ad423c4
linux/kernel/time
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Thomas Gleixner f12ad423c4 tick: Remove pointless cpu valid check in hotplug code 
tick_handover_do_timer() which is invoked when a CPU is unplugged has a
check for cpumask_first(cpu_online_mask) when it tries to hand over the
tick update duty.

Checking the result of cpumask_first() there is pointless because if the
online mask is empty at this point, then this would be the last CPU in the
system going offline, which is impossible. There is always at least one CPU
remaining. If online mask would be really empty then the timer duty would
be the least of the resulting problems.

Remove the well meant check simply because it is pointless and confusing.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20201206212002.582579516@linutronix.de
2020-12-16 11:26:27 +01:00
..
alarmtimer.c alarmtimer: Convert comma to semicolon 2020-08-25 12:45:53 +02:00
clockevents.c tick: Remove outgoing CPU from broadcast masks 2019-03-23 18:26:43 +01:00
clocksource.c clocksource: Remove obsolete ifdef 2020-06-09 16:36:47 +02:00
hrtimer.c timers and timekeeping updates: 2020-12-14 18:21:14 -08:00
itimer.c time: Prevent undefined behaviour in timespec64_to_ns() 2020-10-26 11:48:11 +01:00
jiffies.c timekeeping: Convert jiffies_seq to seqcount_raw_spinlock_t 2020-10-26 11:04:14 +01:00
Kconfig posix-cpu-timers: Provide mechanisms to defer timer handling to task_work 2020-08-06 16:50:59 +02:00
Makefile ns: Introduce Time Namespace 2020-01-14 12:20:48 +01:00
namespace.c fixes-v5.11 2020-12-14 16:40:27 -08:00
ntp_internal.h ntp: Make the RTC synchronization more reliable 2020-12-11 10:40:52 +01:00
ntp.c ntp: Consolidate the RTC update implementation 2020-12-11 10:40:53 +01:00
posix-clock.c posix-clocks: Rename the clock_get() callback to clock_get_timespec() 2020-01-14 12:20:49 +01:00
posix-cpu-timers.c posix-cpu-timers: Provide mechanisms to defer timer handling to task_work 2020-08-06 16:50:59 +02:00
posix-stubs.c posix-timers: Make clock_nanosleep() time namespace aware 2020-01-14 12:20:55 +01:00
posix-timers.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
posix-timers.h posix-clocks: Introduce clock_get_ktime() callback 2020-01-14 12:20:51 +01:00
sched_clock.c time/sched_clock: Mark sched_clock_read_begin/retry() as notrace 2020-10-26 11:34:31 +01:00
test_udelay.c time/debug: Remove license boilerplate 2018-11-23 11:51:21 +01:00
tick-broadcast-hrtimer.c tick: broadcast-hrtimer: Fix a race in bc_set_next 2019-09-27 14:45:55 +02:00
tick-broadcast.c tick: Get rid of tick_period 2020-11-19 10:48:29 +01:00
tick-common.c tick: Remove pointless cpu valid check in hotplug code 2020-12-16 11:26:27 +01:00
tick-internal.h tick: Get rid of tick_period 2020-11-19 10:48:29 +01:00
tick-oneshot.c hrtimers/tick/clockevents: Remove sloppy license references 2018-11-23 11:51:21 +01:00
tick-sched.c tick/sched: Make jiffies update quick check more robust 2020-12-11 23:19:10 +01:00
tick-sched.h tick/sched: Update tick_sched struct documentation 2019-03-24 20:29:32 +01:00
time.c y2038: remove unused time32 interfaces 2020-02-21 11:22:15 -08:00
timeconst.bc time: Add SPDX license identifiers 2018-11-23 11:51:20 +01:00
timeconv.c time: Add missing colons for parameter documentation of time64_to_tm() 2020-11-15 23:47:23 +01:00
timecounter.c time: Remove license boilerplate 2018-11-23 11:51:21 +01:00
timekeeping_debug.c timekeeping/debug: No need to check return value of debugfs_create functions 2019-01-29 20:08:41 +01:00
timekeeping_internal.h timekeeping/vsyscall: Provide vdso_update_begin/end() 2020-08-06 10:57:30 +02:00
timekeeping.c timekeeping: Address parameter documentation issues for various functions 2020-11-15 23:47:24 +01:00
timekeeping.h timekeeping: Convert jiffies_seq to seqcount_raw_spinlock_t 2020-10-26 11:04:14 +01:00
timer_list.c timer_list: Use printk format instead of open-coded symbol lookup 2020-11-15 20:47:14 +01:00
timer.c timers and timekeeping updates: 2020-12-14 18:21:14 -08:00
vsyscall.c timekeeping/vsyscall: Provide vdso_update_begin/end() 2020-08-06 10:57:30 +02:00