linux/include
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
..
acpi Merge branch 'acpica' 2020-06-10 17:27:28 +02:00
asm-generic mm: Allow arches to provide ptep_get() 2020-06-20 22:14:53 +10:00
clocksource
crypto
drm drm/edid: Replace zero-length array with flexible-array 2020-06-15 23:08:31 -05:00
dt-bindings - qcom : 2020-06-11 12:42:14 -07:00
keys RxRPC: Replace zero-length array with flexible-array 2020-06-15 23:08:32 -05:00
kunit Documentation: test.h - fix warnings 2020-05-22 14:33:59 -06:00
kvm KVM: arm64: vgic-v3: Take cpu_if pointer directly instead of vcpu 2020-05-28 11:57:10 +01:00
linux task_work: teach task_work_add() to do signal_wake_up() 2020-06-30 12:18:08 -06:00
math-emu
media media updates for v5.8-rc1 2020-06-13 13:09:38 -07:00
misc
net netfilter: flowtable: Make nf_flow_table_offload_add/del_cb inline 2020-06-15 18:06:52 -07:00
pcmcia
ras
rdma dynamic_debug: add an option to enable dynamic debug for modules only 2020-06-08 11:05:56 -07:00
scsi SCSI misc on 20200605 2020-06-05 15:11:50 -07:00
soc pci-v5.8-changes 2020-06-06 11:01:58 -07:00
sound ASoC: Updates for v5.8 2020-06-01 20:26:07 +02:00
target scsi: target: Rename target_setup_cmd_from_cdb() to target_cmd_parse_cdb() 2020-06-09 21:57:26 -04:00
trace trace/events/block.h: drop kernel-doc for dropped function parameter 2020-06-15 16:51:46 -06:00
uapi libnvdimm for 5.8-rc2 2020-06-20 13:13:21 -07:00
vdso
video
xen xen: Move xen_setup_callback_vector() definition to include/xen/hvm.h 2020-06-11 15:15:19 +02:00