diff options
| author |   Thomas Zimmermann <tzimmermann@suse.de> | 2020-07-28 15:35:50 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2020-07-28 15:35:50 +0200 |
| commit | f4a1692491b5cce8978cea19cb8946bc2c6f14bc (patch) | |
| tree | 1865126859b5b9d613c49113a5aaafc78f79b99b /kernel/task_work.c | |
| parent | drm: hold gem reference until object is no longer accessed (diff) | |
| parent | Merge branch 'linux-5.8' of git://github.com/skeggsb/linux into drm-fixes (diff) | |
| download | wireguard-linux-f4a1692491b5cce8978cea19cb8946bc2c6f14bc.tar.xz wireguard-linux-f4a1692491b5cce8978cea19cb8946bc2c6f14bc.zip | |
Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes
Updating drm-misc-fixes to v5.8-rc7.
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; } |