Re: [PATCH v2 1/7] pid: Introduce helper task_is_in_init_pid_ns()

On Wed, Dec 08, 2021 at 04:33:14PM +0800, 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 <suzuki.poulose@arm.com>
Signed-off-by: Leo Yan <redacted>
---
 include/linux/pid_namespace.h | 5 +++++
 1 file changed, 5 insertions(+)

Thanks,
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>