[PATCH v3 2/6] exit: hoist get_pid() in release_task() outside of tasklist_lock

Mateusz Guzik
2025-02-01T16:31:26Z

Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
---
kernel/exit.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/exit.c b/kernel/exit.c
index 1eb2e7d36ce4..257dd8ed45ea 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -248,9 +248,10 @@ void release_task(struct task_struct *p)

cgroup_release(p);

+ thread_pid = get_pid(p->thread_pid);
+
write_lock_irq(&tasklist_lock);
ptrace_release_task(p);
- thread_pid = get_pid(p->thread_pid);
__exit_signal(p);

/*
--
2.43.0