There's one place that works with task pids - its the "tasks" file
in cgroups. The read/write handlers assume, that the pid values
go to/come from the user space and thus it is a virtual pid, i.e.
the pid as it is seen from inside a namespace.
Tune the code accordingly.
Signed-off-by: Pavel Emelyanov <[EMAIL PROTECTED]>
---
kernel/cgroup.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 2c5cccb..4766bb6 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1269,7 +1269,7 @@ static int attach_task_by_pid(struct cgroup *cgrp, char
*pidbuf)
if (pid) {
rcu_read_lock();
- tsk = find_task_by_pid(pid);
+ tsk = find_task_by_vpid(pid);
if (!tsk || tsk->flags & PF_EXITING) {
rcu_read_unlock();
return -ESRCH;
@@ -1955,7 +1955,7 @@ static int pid_array_load(pid_t *pidarray, int npids,
struct cgroup *cgrp)
while ((tsk = cgroup_iter_next(cgrp, &it))) {
if (unlikely(n == npids))
break;
- pidarray[n++] = task_pid_nr(tsk);
+ pidarray[n++] = task_pid_vnr(tsk);
}
cgroup_iter_end(cgrp, &it);
return n;
--
1.5.3.4
--
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