From:   Leo Yan <leo.yan@linaro.org>
To:     "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Leon Romanovsky <leon@kernel.org>,
        Mathieu Poirier <mathieu.poirier@linaro.org>,
        Suzuki K Poulose <suzuki.poulose@arm.com>,
        Mike Leach <mike.leach@linaro.org>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Jan Harkes <jaharkes@cs.cmu.edu>, coda@cs.cmu.edu,
        Paul Moore <paul@paul-moore.com>,
        Eric Paris <eparis@redhat.com>,
        Balbir Singh <bsingharora@gmail.com>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, coresight@lists.linaro.org,
        linux-arm-kernel@lists.infradead.org, codalist@coda.cs.cmu.edu,
        linux-audit@redhat.com
Cc:     Leo Yan <leo.yan@linaro.org>
Subject: [PATCH v2 0/7] pid: Introduce helper task_is_in_root_ns()
Date:   Wed,  8 Dec 2021 16:33:13 +0800
Message-Id: <20211208083320.472503-1-leo.yan@linaro.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

The kernel uses open code to check if a process is in root PID namespace
or not in several places.

Suggested by Suzuki, this patch set is to create a helper function
task_is_in_init_pid_ns() to replace open code.

This patch set has been applied on the mainline kernel and built for
Arm64 kernel with enabling all relevant modules.

Changes from v1:
* Renamed helper function from task_is_in_root_ns() to
  task_is_in_init_pid_ns(). (Leon Romanovsky)
* Improved patches' commit logs for more neat.


Leo Yan (7):
  pid: Introduce helper task_is_in_init_pid_ns()
  coresight: etm3x: Use task_is_in_init_pid_ns()
  coresight: etm4x: Use task_is_in_init_pid_ns()
  connector/cn_proc: Use task_is_in_init_pid_ns()
  coda: Use task_is_in_init_pid_ns()
  audit: Use task_is_in_init_pid_ns()
  taskstats: Use task_is_in_init_pid_ns()

 drivers/connector/cn_proc.c                         | 2 +-
 drivers/hwtracing/coresight/coresight-etm3x-sysfs.c | 8 ++++----
 drivers/hwtracing/coresight/coresight-etm4x-sysfs.c | 8 ++++----
 fs/coda/inode.c                                     | 2 +-
 fs/coda/psdev.c                                     | 2 +-
 include/linux/pid_namespace.h                       | 5 +++++
 kernel/audit.c                                      | 2 +-
 kernel/taskstats.c                                  | 2 +-
 8 files changed, 18 insertions(+), 13 deletions(-)

-- 
2.25.1