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9b3a7fd0f5
Commands are given to the resctrl file system by making/removing directories, or by writing to files. When something goes wrong the user is generally left wondering why they got: bash: echo: write error: Invalid argument Add a new file "last_cmd_status" to the "info" directory that will give the user some better clues on what went wrong. Provide functions to clear and update last_cmd_status which check that we hold the rdtgroup_mutex. [ tglx: Made last_cmd_status static and folded back the hunk from patch 3 which replaces the open coded access to last_cmd_status with the accessor function ] Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Vikas Shivappa <vikas.shivappa@intel.com> Cc: Boris Petkov <bp@suse.de> Cc: Reinette Chatre <reinette.chatre@intel.com> Link: https://lkml.kernel.org/r/edc4e0e9741eee89bba569f0021b1b2662fd9508.1506382469.git.tony.luck@intel.com |
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| boot | ||
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| crypto | ||
| entry | ||
| events | ||
| hyperv | ||
| ia32 | ||
| include | ||
| kernel | ||
| kvm | ||
| lib | ||
| math-emu | ||
| mm | ||
| net | ||
| oprofile | ||
| pci | ||
| platform | ||
| power | ||
| purgatory | ||
| ras | ||
| realmode | ||
| tools | ||
| um | ||
| video | ||
| xen | ||
| .gitignore | ||
| Kbuild | ||
| Kconfig | ||
| Kconfig.cpu | ||
| Kconfig.debug | ||
| Makefile | ||
| Makefile.um | ||
| Makefile_32.cpu | ||