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authorFenghua Yu <fenghua.yu@intel.com>2016-10-29 00:04:42 +0200
committerThomas Gleixner <tglx@linutronix.de>2016-10-31 02:10:14 +0100
commit5ff193fbde20df5d80fec367cea3e7856c057320 (patch)
tree4d5d78e17f419b20d14bb5bc75a293f3cd4e95d5 /include
parentx86/intel_rdt: Build structures for each resource based on cache topology (diff)
downloadlinux-5ff193fbde20df5d80fec367cea3e7856c057320.tar.xz
linux-5ff193fbde20df5d80fec367cea3e7856c057320.zip
x86/intel_rdt: Add basic resctrl filesystem support
Use kernfs as basis for our user interface filesystem. This patch supports mount/umount, and one mount parameter "cdp" to enable code/data prioritization (though all we do at this point is ensure that the system can support CDP). The file system is not populated yet in this patch. [ tglx: Fixed up a few nits and added cdp handling in case of error ] 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/1477692289-37412-4-git-send-email-fenghua.yu@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/magic.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index 9bd559472c92..e230af2e6855 100644
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -57,6 +57,7 @@
#define CGROUP_SUPER_MAGIC 0x27e0eb
#define CGROUP2_SUPER_MAGIC 0x63677270
+#define RDTGROUP_SUPER_MAGIC 0x7655821
#define STACK_END_MAGIC 0x57AC6E9D