From 130f77ecb2e7d5ac3e53e620f55e374f4a406b20 Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Thu, 18 Oct 2007 23:40:11 -0700 Subject: [PATCH] pid namespaces: make proc_flush_task() actually from entries from multiple namespaces This means that proc_flush_task_mnt() is to be called for many proc mounts and with different ids, depending on the namespace this pid is to be flushed from. Signed-off-by: Pavel Emelyanov Cc: Oleg Nesterov Cc: Sukadev Bhattiprolu Cc: Paul Menage Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 50e149e08d96..5e0c6a1ce8b3 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2259,8 +2259,22 @@ out: void proc_flush_task(struct task_struct *task) { - proc_flush_task_mnt(proc_mnt, task->pid, - thread_group_leader(task) ? 0 : task->tgid); + int i, leader; + struct pid *pid, *tgid; + struct upid *upid; + + leader = thread_group_leader(task); + proc_flush_task_mnt(proc_mnt, task->pid, leader ? task->tgid : 0); + pid = task_pid(task); + if (pid->level == 0) + return; + + tgid = task_tgid(task); + for (i = 1; i <= pid->level; i++) { + upid = &pid->numbers[i]; + proc_flush_task_mnt(upid->ns->proc_mnt, upid->nr, + leader ? 0 : tgid->numbers[i].nr); + } } static struct dentry *proc_pid_instantiate(struct inode *dir, -- 2.20.1