[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20230826111409.GA23243@redhat.com>
Date: Sat, 26 Aug 2023 13:14:09 +0200
From: Oleg Nesterov <oleg@...hat.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: "Eric W. Biederman" <ebiederm@...ssion.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] kill task_struct->thread_group
The last user was removed by the previous patch.
Signed-off-by: Oleg Nesterov <oleg@...hat.com>
---
include/linux/sched.h | 1 -
init/init_task.c | 1 -
kernel/exit.c | 1 -
kernel/fork.c | 3 ---
4 files changed, 6 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 609bde814cb0..2b012d446cad 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -997,7 +997,6 @@ struct task_struct {
/* PID/PID hash table linkage. */
struct pid *thread_pid;
struct hlist_node pid_links[PIDTYPE_MAX];
- struct list_head thread_group;
struct list_head thread_node;
struct completion *vfork_done;
diff --git a/init/init_task.c b/init/init_task.c
index ff6c4b9bfe6b..c0de0200fd56 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -132,7 +132,6 @@ struct task_struct init_task
.pi_lock = __RAW_SPIN_LOCK_UNLOCKED(init_task.pi_lock),
.timer_slack_ns = 50000, /* 50 usec default slack */
.thread_pid = &init_struct_pid,
- .thread_group = LIST_HEAD_INIT(init_task.thread_group),
.thread_node = LIST_HEAD_INIT(init_signals.thread_head),
#ifdef CONFIG_AUDIT
.loginuid = INVALID_UID,
diff --git a/kernel/exit.c b/kernel/exit.c
index edb50b4c9972..f3ba4b97a7d9 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -133,7 +133,6 @@ static void __unhash_process(struct task_struct *p, bool group_dead)
list_del_init(&p->sibling);
__this_cpu_dec(process_counts);
}
- list_del_rcu(&p->thread_group);
list_del_rcu(&p->thread_node);
}
diff --git a/kernel/fork.c b/kernel/fork.c
index d2e12b6d2b18..3cd6913a90ef 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2579,7 +2579,6 @@ __latent_entropy struct task_struct *copy_process(
p->dirty_paused_when = 0;
p->pdeath_signal = 0;
- INIT_LIST_HEAD(&p->thread_group);
p->task_works = NULL;
clear_posix_cputimers_work(p);
@@ -2707,8 +2706,6 @@ __latent_entropy struct task_struct *copy_process(
atomic_inc(¤t->signal->live);
refcount_inc(¤t->signal->sigcnt);
task_join_group_stop(p);
- list_add_tail_rcu(&p->thread_group,
- &p->group_leader->thread_group);
list_add_tail_rcu(&p->thread_node,
&p->signal->thread_head);
}
--
2.25.1.362.g51ebf55
Powered by blists - more mailing lists