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SubjectRe: [RFC][PATCH 1/5] pid: Implement ns_of_pid
Bastian Blank [bastian@waldi.eu.org] wrote:
| On Tue, Nov 25, 2008 at 07:44:42PM -0800, Sukadev Bhattiprolu wrote:
| > +/* ns_of_pid returns the pid namespace in which the specified
| > + * pid was allocated.
| > + */
| > +static inline struct pid_namespace *ns_of_pid(struct pid *pid)
| > +{
| > + struct pid_namespace *ns = NULL;
| > + if (pid)
| > + ns = pid->numbers[pid->level].ns;
| > + return ns;
| > +}
| > +
|
| When can the pid argument be null?

Soon after creation but more importantly, after detach_pid()
(release_task).

|
| Bastian
|
| --
| Another Armenia, Belgium ... the weak innocents who always seem to be
| located on a natural invasion route.
| -- Kirk, "Errand of Mercy", stardate 3198.4


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