linux-kernel - [PATCH v2 25/33] include/linux/resctrl.h: Define fork and exit functions in a new header file

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Message-Id: <1473328647-33116-26-git-send-email-fenghua.yu@intel.com>
Date:   Thu,  8 Sep 2016 02:57:19 -0700
From:   "Fenghua Yu" <fenghua.yu@...el.com>
To:     "Thomas Gleixner" <tglx@...utronix.de>,
        "H. Peter Anvin" <h.peter.anvin@...el.com>,
        "Ingo Molnar" <mingo@...e.hu>, "Tony Luck" <tony.luck@...el.com>,
        "Peter Zijlstra" <peterz@...radead.org>,
        "Tejun Heo" <tj@...nel.org>, "Borislav Petkov" <bp@...e.de>,
        "Stephane Eranian" <eranian@...gle.com>,
        "Marcelo Tosatti" <mtosatti@...hat.com>,
        "David Carrillo-Cisneros" <davidcc@...gle.com>,
        "Shaohua Li" <shli@...com>,
        "Ravi V Shankar" <ravi.v.shankar@...el.com>,
        "Vikas Shivappa" <vikas.shivappa@...ux.intel.com>,
        "Sai Prakhya" <sai.praneeth.prakhya@...el.com>
Cc:     "linux-kernel" <linux-kernel@...r.kernel.org>,
        "x86" <x86@...nel.org>, Fenghua Yu <fenghua.yu@...el.com>
Subject: [PATCH v2 25/33] include/linux/resctrl.h: Define fork and exit functions in a new header file

From: Fenghua Yu <fenghua.yu@...el.com>

A new header file is created in include/linux/resctrl.h. It contains
defintions of rdtgroup_fork and rdtgroup_exit for x86. The functions
are empty for other architectures.

Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>
Reviewed-by: Tony Luck <tony.luck@...el.com>
---
 include/linux/resctrl.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 include/linux/resctrl.h

diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h
new file mode 100644
index 0000000..68dabc4
--- /dev/null
+++ b/include/linux/resctrl.h
@@ -0,0 +1,12 @@
+#ifndef _LINUX_RESCTRL_H
+#define _LINUX_RESCTRL_H
+
+#ifdef CONFIG_INTEL_RDT
+extern void rdtgroup_fork(struct task_struct *child);
+extern void rdtgroup_exit(struct task_struct *tsk);
+#else
+static inline void rdtgroup_fork(struct task_struct *child) {}
+static inline void rdtgroup_exit(struct task_struct *tsk) {}
+#endif /* CONFIG_X86 */
+
+#endif /* _LINUX_RESCTRL_H */
-- 
2.5.0