Peter Zijlstra 6816509065 sched/core: Allow try_invoke_on_locked_down_task() with irqs disabled ... commit 1b7af29554 upstream. The try_invoke_on_locked_down_task() function currently requires that interrupts be enabled, but it is called with interrupts disabled from rcu_print_task_stall(), resulting in an "IRQs not enabled as expected" diagnostic. This commit therefore updates try_invoke_on_locked_down_task() to use raw_spin_lock_irqsave() instead of raw_spin_lock_irq(), thus allowing use from either context. Link: https://lore.kernel.org/lkml/000000000000903d5805ab908fc4@google.com/ Link: https://lore.kernel.org/lkml/20200928075729.GC2611@hirez.programming.kicks-ass.net/ Reported-by: syzbot+cb3b69ae80afd6535b0e@syzkaller.appspotmail.com Signed-off-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-03-07 12:34:04 +01:00
..
autogroup.c
autogroup.h
clock.c
completion.c	completion: Use lockdep_assert_RT_in_threaded_ctx() in complete_all()	2020-03-23 18:40:25 +01:00
core.c	sched/core: Allow try_invoke_on_locked_down_task() with irqs disabled	2021-03-07 12:34:04 +01:00
cpuacct.c	sched/cpuacct: Fix charge cpuacct.usage_sys	2020-05-19 20:34:14 +02:00
cpudeadline.c	sched/deadline: Implement fallback mechanism for !fit case	2020-06-15 14:10:05 +02:00
cpudeadline.h
cpufreq_schedutil.c	cpufreq: Introduce governor flags	2020-11-10 18:31:17 +01:00
cpufreq.c
cpupri.c	sched/rt: cpupri_find: Trigger a full search as fallback	2020-03-20 13:06:20 +01:00
cpupri.h	sched/rt: Optimize cpupri_find() on non-heterogenous systems	2020-03-06 12:57:27 +01:00
cputime.c	sched/cputime: Improve cputime_adjust()	2020-06-15 14:10:00 +02:00
deadline.c	sched/deadline: Fix sched_dl_global_validate()	2020-12-30 11:52:59 +01:00
debug.c	sched/debug: Fix memory corruption caused by multiple small reads of flags	2020-11-10 18:38:49 +01:00
fair.c	sched/eas: Don't update misfit status if the task is pinned	2021-03-04 11:37:44 +01:00
features.h	sched/rt: Disable RT_RUNTIME_SHARE by default	2020-09-25 14:23:24 +02:00
idle.c	rcu/nocb: Perform deferred wake up before last idle's need_resched() check	2021-03-04 11:38:35 +01:00
isolation.c	isolcpus: Affine unbound kernel threads to housekeeping cpus	2020-06-15 14:10:03 +02:00
loadavg.c	sched: nohz: stop passing around unused "ticks" parameter.	2020-07-22 10:22:04 +02:00
Makefile
membarrier.c	membarrier: Execute SYNC_CORE on the calling thread	2020-12-09 09:37:43 +01:00
pelt.c	sched: Add a tracepoint to track rq->nr_running	2020-07-08 11:39:02 +02:00
pelt.h	sched/pelt: Cleanup PELT divider	2020-06-15 14:10:06 +02:00
psi.c	sched,psi: Convert to sched_set_fifo_low()	2020-06-15 14:10:25 +02:00
rt.c	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
sched-pelt.h
sched.h	sched/deadline: Fix sched_dl_global_validate()	2020-12-30 11:52:59 +01:00
smp.h	sched/headers: Split out open-coded prototypes into kernel/sched/smp.h	2020-05-28 11:03:20 +02:00
stats.c
stats.h	psi: Move PF_MEMSTALL out of task->flags	2020-03-20 13:06:19 +01:00
stop_task.c	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
swait.c	sched/swait: Prepare usage in completions	2020-03-21 16:00:23 +01:00
topology.c	Scheduler changes for v5.10:	2020-10-12 12:56:01 -07:00
wait_bit.c
wait.c	list: add "list_del_init_careful()" to go with "list_empty_careful()"	2020-08-02 20:39:44 -07:00