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36e74d3552
If no monitoring feature is detected because all monitoring features are disabled during boot time or there is no monitoring feature in hardware, creating rdtgroup sub-directory by "mkdir" command reports error: mkdir: cannot create directory ‘/sys/fs/resctrl/p1’: No such file or directory But the sub-directory actually is generated and content is correct: cpus cpus_list schemata tasks The error is because rdtgroup_mkdir_ctrl_mon() returns non zero value after the sub-directory is created and the returned value is reported as an error to user. Clear the returned value to report to user that the sub-directory is actually created successfully. Signed-off-by: Wang Hui <john.wanghui@huawei.com> Signed-off-by: Zhang Yanfei <yanfei.zhang@huawei.com> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi V Shankar <ravi.v.shankar@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vikas <vikas.shivappa@intel.com> Cc: Xiaochen Shen <xiaochen.shen@intel.com> Link: http://lkml.kernel.org/r/1519356363-133085-1-git-send-email-fenghua.yu@intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.