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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-07-03 08:05:59 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-07-03 08:05:59 -0300 |
| commit | 9434628fcee63b1f3c6a6881b70e8f69a1f68e88 (patch) | |
| tree | 255d093aeda6c125f0158e883eb2bf400bb7f737 /kernel/task_work.c | |
| parent | c42ad5d4358230be166fc36c87bae0dd1680c570 (diff) | |
| parent | cdd3bb54332f82295ed90cd0c09c78cd0c0ee822 (diff) | |
| download | linux-9434628fcee63b1f3c6a6881b70e8f69a1f68e88.tar.bz2 | |
Merge remote-tracking branch 'torvalds/master' into perf/urgent
To synchronize UAPI headers.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'kernel/task_work.c')
| -rw-r--r-- | kernel/task_work.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/kernel/task_work.c b/kernel/task_work.c index 825f28259a19..5c0848ca1287 100644 --- a/kernel/task_work.c +++ b/kernel/task_work.c @@ -25,9 +25,10 @@ static struct callback_head work_exited; /* all we need is ->next == NULL */ * 0 if succeeds or -ESRCH. */ int -task_work_add(struct task_struct *task, struct callback_head *work, bool notify) +task_work_add(struct task_struct *task, struct callback_head *work, int notify) { struct callback_head *head; + unsigned long flags; do { head = READ_ONCE(task->task_works); @@ -36,8 +37,19 @@ task_work_add(struct task_struct *task, struct callback_head *work, bool notify) work->next = head; } while (cmpxchg(&task->task_works, head, work) != head); - if (notify) + switch (notify) { + case TWA_RESUME: set_notify_resume(task); + break; + case TWA_SIGNAL: + if (lock_task_sighand(task, &flags)) { + task->jobctl |= JOBCTL_TASK_WORK; + signal_wake_up(task, 0); + unlock_task_sighand(task, &flags); + } + break; + } + return 0; } |