47820e73f5
Currently, when a new resource group is created, the allocation values of the MBA resource are not initialized and remain meaningless data. For example: mkdir /sys/fs/resctrl/p1 cat /sys/fs/resctrl/p1/schemata MB:0=100;1=100 echo "MB:0=10;1=20" > /sys/fs/resctrl/p1/schemata cat /sys/fs/resctrl/p1/schemata MB:0= 10;1= 20 rmdir /sys/fs/resctrl/p1 mkdir /sys/fs/resctrl/p2 cat /sys/fs/resctrl/p2/schemata MB:0= 10;1= 20 Therefore, when the new group is created, it is reasonable to initialize MBA resource with default values. Initialize the MBA resource and cache resources in separate functions. [ bp: Add newlines between code blocks for better readability. ] Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Fenghua Yu <fenghua.yu@intel.com> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: pei.p.jia@intel.com Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/1555499329-1170-3-git-send-email-xiaochen.shen@intel.com |
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| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
README
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.