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| author | Jens Axboe <axboe@kernel.dk> | 2023-07-11 10:31:10 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-09-21 12:03:33 -0600 |
| commit | 9d900d4ea352069de8728f11fe4b20051d64cc20 (patch) | |
| tree | 781d71eeb196036eb6c75fd9a438c860f728e972 /kernel/exit.c | |
| parent | fc68fcda049108478ee4704d8a3ad3e05cc72fd0 (diff) | |
| download | linux-9d900d4ea352069de8728f11fe4b20051d64cc20.tar.gz linux-9d900d4ea352069de8728f11fe4b20051d64cc20.tar.bz2 linux-9d900d4ea352069de8728f11fe4b20051d64cc20.zip | |
exit: abstract out should_wake helper for child_wait_callback()
Abstract out the helper that decides if we should wake up following
a wake_up() callback on our internal waitqueue.
No functional changes intended in this patch.
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'kernel/exit.c')
| -rw-r--r-- | kernel/exit.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index edb50b4c9972..2809dad69492 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1520,6 +1520,17 @@ static int ptrace_do_wait(struct wait_opts *wo, struct task_struct *tsk) return 0; } +static bool pid_child_should_wake(struct wait_opts *wo, struct task_struct *p) +{ + if (!eligible_pid(wo, p)) + return false; + + if ((wo->wo_flags & __WNOTHREAD) && wo->child_wait.private != p->parent) + return false; + + return true; +} + static int child_wait_callback(wait_queue_entry_t *wait, unsigned mode, int sync, void *key) { @@ -1527,13 +1538,10 @@ static int child_wait_callback(wait_queue_entry_t *wait, unsigned mode, child_wait); struct task_struct *p = key; - if (!eligible_pid(wo, p)) - return 0; + if (pid_child_should_wake(wo, p)) + return default_wake_function(wait, mode, sync, key); - if ((wo->wo_flags & __WNOTHREAD) && wait->private != p->parent) - return 0; - - return default_wake_function(wait, mode, sync, key); + return 0; } void __wake_up_parent(struct task_struct *p, struct task_struct *parent) |