linux-kernel - [PATCH v2 0/2] tracing: Fix cpu buffers unavailable problem and add its testcase

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Message-ID: <20230805033816.3284594-1-zhengyejian1@huawei.com>
Date:   Sat, 5 Aug 2023 11:38:14 +0800
From:   Zheng Yejian <zhengyejian1@...wei.com>
To:     <rostedt@...dmis.org>, <mhiramat@...nel.org>,
        <vnagarnaik@...gle.com>, <shuah@...nel.org>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-trace-kernel@...r.kernel.org>,
        <linux-kselftest@...r.kernel.org>
Subject: [PATCH v2 0/2] tracing: Fix cpu buffers unavailable problem and add its testcase

Hi,

This is the v2 to fix cpu buffers unavailable problem after some
operations on file 'tracing_cpumask' and 'snapshot', also upload
its testcase. Changes show as below.

v2:
  - Fix compile issue reported-by kernel test robot <lkp@...el.com> with
    suggestion from Steve:
    - Link: https://lore.kernel.org/all/202308050731.PQutr3r0-lkp@intel.com/
    - Link: https://lore.kernel.org/all/20230804125107.41d6cdb1@gandalf.local.home/

  - Add a step to set tracing_on in testcase (see patch 2) and add
    descriptions of each step.

v1:
  - Link: https://lore.kernel.org/all/20230804124549.2562977-1-zhengyejian1@huawei.com/

Zheng Yejian (2):
  tracing: Fix cpu buffers unavailable due to 'record_disabled' messed
  selftests/ftrace: Add a basic testcase for snapshot

 kernel/trace/trace.c                          |  6 ++++
 .../ftrace/test.d/00basic/snapshot1.tc        | 31 +++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 tools/testing/selftests/ftrace/test.d/00basic/snapshot1.tc

-- 
2.25.1