Peter Zijlstra cd9626e9eb sched/fair: Fix external p->on_rq users ... Sean noted that ever since commit 152e11f6df ("sched/fair: Implement delayed dequeue") KVM's preemption notifiers have started mis-classifying preemption vs blocking. Notably p->on_rq is no longer sufficient to determine if a task is runnable or blocked -- the aforementioned commit introduces tasks that remain on the runqueue even through they will not run again, and should be considered blocked for many cases. Add the task_is_runnable() helper to classify things and audit all external users of the p->on_rq state. Also add a few comments. Fixes: 152e11f6df ("sched/fair: Implement delayed dequeue") Reported-by: Sean Christopherson <seanjc@google.com> Tested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20241010091843.GK33184@noisy.programming.kicks-ass.net		2024-10-14 09:14:35 +02:00
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alarmtimer.c
clockevents.c
clocksource-wdtest.c
clocksource.c
hrtimer.c	In the v6.12 scheduler development cycle we had 63 commits from 18 contributors:	2024-09-19 15:55:58 +02:00
itimer.c
jiffies.c
Kconfig
Makefile
namespace.c
ntp.c
ntp_internal.h
posix-clock.c	[tree-wide] finally take no_llseek out	2024-09-27 08:18:43 -07:00
posix-cpu-timers.c
posix-stubs.c
posix-timers.c
posix-timers.h
sched_clock.c
test_udelay.c
tick-broadcast-hrtimer.c
tick-broadcast.c
tick-common.c
tick-internal.h
tick-legacy.c
tick-oneshot.c
tick-sched.c	sched/fair: Fix external p->on_rq users	2024-10-14 09:14:35 +02:00
tick-sched.h
time.c
time_test.c
timeconst.bc
timeconv.c
timecounter.c
timekeeping.c
timekeeping.h
timekeeping_debug.c
timekeeping_internal.h
timer.c
timer_list.c
timer_migration.c
timer_migration.h
vsyscall.c