Oleg Nesterov e91b481623 task_work: teach task_work_add() to do signal_wake_up() ... So that the target task will exit the wait_event_interruptible-like loop and call task_work_run() asap. The patch turns "bool notify" into 0,TWA_RESUME,TWA_SIGNAL enum, the new TWA_SIGNAL flag implies signal_wake_up(). However, it needs to avoid the race with recalc_sigpending(), so the patch also adds the new JOBCTL_TASK_WORK bit included in JOBCTL_PENDING_MASK. TODO: once this patch is merged we need to change all current users of task_work_add(notify = true) to use TWA_RESUME. Cc: stable@vger.kernel.org # v5.7 Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2020-06-30 12:18:08 -06:00
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autogroup.h
clock.h
coredump.h
cpufreq.h
cputime.h
deadline.h
debug.h	kernel: rename show_stack_loglvl() => show_stack()	2020-06-09 09:39:13 -07:00
hotplug.h
idle.h
init.h
isolation.h
jobctl.h	task_work: teach task_work_add() to do signal_wake_up()	2020-06-30 12:18:08 -06:00
loadavg.h
mm.h	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
nohz.h
numa_balancing.h
prio.h
rt.h
signal.h
smt.h
stat.h
sysctl.h	kernel/hung_task.c: introduce sysctl to print all traces when a hung task is detected	2020-06-08 11:05:56 -07:00
task_stack.h
task.h
topology.h
types.h
user.h
wake_q.h
xacct.h