On 08/12/2021 08:33, Leo Yan wrote:
Currently the kernel uses open code in multiple places to check if a task is in the root PID namespace with the kind of format:if (task_active_pid_ns(current) == &init_pid_ns) do_something(); This patch creates a new helper function, task_is_in_init_pid_ns(), it returns true if a passed task is in the root PID namespace, otherwise returns false. So it will be used to replace open codes. Suggested-by: Suzuki K Poulose <[email protected]> Signed-off-by: Leo Yan <[email protected]> --- include/linux/pid_namespace.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index 7c7e627503d2..07481bb87d4e 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -86,4 +86,9 @@ extern struct pid_namespace *task_active_pid_ns(struct task_struct *tsk); void pidhash_init(void); void pid_idr_init(void);+static inline bool task_is_in_init_pid_ns(struct task_struct *tsk)+{ + return task_active_pid_ns(tsk) == &init_pid_ns; +} +
Looks good to me, Acked-by: Suzuki K Poulose <[email protected]> -- Linux-audit mailing list [email protected] https://listman.redhat.com/mailman/listinfo/linux-audit
