Commit 19319103 authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Linus Torvalds

signals: check_kill_permission: remove tasklist_lock

Now that task_session() can't return a false NULL, check_kill_permission()
doesn't need tasklist_lock.
Signed-off-by: default avatarOleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 2e2ba22e
......@@ -551,9 +551,7 @@ static int check_kill_permission(int sig, struct siginfo *info,
!capable(CAP_KILL)) {
switch (sig) {
case SIGCONT:
read_lock(&tasklist_lock);
sid = task_session(t);
read_unlock(&tasklist_lock);
/*
* We don't return the error if sid == NULL. The
* task was unhashed, the caller must notice this.
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment