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| author | Fenghua Yu | 2016-10-29 00:04:46 +0200 |
|---|---|---|
| committer | Thomas Gleixner | 2016-10-31 02:10:15 +0100 |
| commit | e02737d5b82640497637d18428e2793bb7f02881 (patch) | |
| tree | 9c78ffce0772b261cc20c3258f5a12c08e75dccf /include/linux/sched.h | |
| parent | x86/intel_rdt: Add cpus file (diff) | |
| download | kernel-qcow2-linux-e02737d5b82640497637d18428e2793bb7f02881.tar.gz kernel-qcow2-linux-e02737d5b82640497637d18428e2793bb7f02881.tar.xz kernel-qcow2-linux-e02737d5b82640497637d18428e2793bb7f02881.zip | |
x86/intel_rdt: Add tasks files
The root directory all subdirectories are automatically populated with a
read/write (mode 0644) file named "tasks". When read it will show all the
task IDs assigned to the resource group. Tasks can be added (one at a time)
to a group by writing the task ID to the file. E.g.
Membership in a resource group is indicated by a new field in the
task_struct "int closid" which holds the CLOSID for each task. The default
resource group uses CLOSID=0 which means that all existing tasks when the
resctrl file system is mounted belong to the default group.
If a group is removed, tasks which are members of that group are moved to
the default group.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com>
Cc: "Tony Luck" <tony.luck@intel.com>
Cc: "Shaohua Li" <shli@fb.com>
Cc: "Sai Prakhya" <sai.praneeth.prakhya@intel.com>
Cc: "Peter Zijlstra" <peterz@infradead.org>
Cc: "Stephane Eranian" <eranian@google.com>
Cc: "Dave Hansen" <dave.hansen@intel.com>
Cc: "David Carrillo-Cisneros" <davidcc@google.com>
Cc: "Nilay Vaish" <nilayvaish@gmail.com>
Cc: "Vikas Shivappa" <vikas.shivappa@linux.intel.com>
Cc: "Ingo Molnar" <mingo@elte.hu>
Cc: "Borislav Petkov" <bp@suse.de>
Cc: "H. Peter Anvin" <h.peter.anvin@intel.com>
Link: http://lkml.kernel.org/r/1477692289-37412-8-git-send-email-fenghua.yu@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 348f51b0ec92..c8f4152e7265 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1791,6 +1791,9 @@ struct task_struct { /* cg_list protected by css_set_lock and tsk->alloc_lock */ struct list_head cg_list; #endif +#ifdef CONFIG_INTEL_RDT_A + int closid; +#endif #ifdef CONFIG_FUTEX struct robust_list_head __user *robust_list; #ifdef CONFIG_COMPAT |