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| author | Oleg Nesterov <oleg@redhat.com> | 2020-04-21 12:19:04 +0200 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2020-04-30 06:40:14 -0500 |
| commit | 1dd694a1b72f69a3add938f4b5bfb4cf9914b133 (patch) | |
| tree | 97d731499e4568dca1f10e7b8b5e29e0f94f6d0c /kernel/pid.c | |
| parent | 06576edd0e802cf72a7edaaa2fba7da7b94efaae (diff) | |
| download | linux-1dd694a1b72f69a3add938f4b5bfb4cf9914b133.tar.gz linux-1dd694a1b72f69a3add938f4b5bfb4cf9914b133.tar.bz2 linux-1dd694a1b72f69a3add938f4b5bfb4cf9914b133.zip | |
remove the no longer needed pid_alive() check in __task_pid_nr_ns()
Starting from 2c4704756cab ("pids: Move the pgrp and session pid pointers
from task_struct to signal_struct") __task_pid_nr_ns() doesn't dereference
task->group_leader, we can remove the pid_alive() check.
pid_nr_ns() has to check pid != NULL anyway, pid_alive() just adds the
unnecessary confusion.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'kernel/pid.c')
| -rw-r--r-- | kernel/pid.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/pid.c b/kernel/pid.c index 6d5d0a5bda82..f1496b757162 100644 --- a/kernel/pid.c +++ b/kernel/pid.c @@ -495,8 +495,7 @@ pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type, rcu_read_lock(); if (!ns) ns = task_active_pid_ns(current); - if (likely(pid_alive(task))) - nr = pid_nr_ns(rcu_dereference(*task_pid_ptr(task, type)), ns); + nr = pid_nr_ns(rcu_dereference(*task_pid_ptr(task, type)), ns); rcu_read_unlock(); return nr; |