signal: use kill_proc_info instead of kill_pid_info in kill_something_info

signal.c provides kill_proc_info, we can use it instead of kill_pid_info
in kill_something_info func gracefully.

Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/80236965-f0b5-c888-95ff-855bdec75bb3@huawei.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/kernel/signal.c b/kernel/signal.c
index 3f94894..7131048 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1557,12 +1557,8 @@ static int kill_something_info(int sig, struct kernel_siginfo *info, pid_t pid)
 {
        int ret;
 
-       if (pid > 0) {
-               rcu_read_lock();
-               ret = kill_pid_info(sig, info, find_vpid(pid));
-               rcu_read_unlock();
-               return ret;
-       }
+       if (pid > 0)
+               return kill_proc_info(sig, info, pid);
 
        /* -INT_MIN is undefined.  Exclude this case to avoid a UBSAN warning */
        if (pid == INT_MIN)