linux-kernel - [RFC PATCH 05/11] kprobes: Add an KPROBE_FLAG

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Date:	Wed, 7 Jan 2015 15:35:42 +0800
From:	Wang Nan <wangnan0@...wei.com>
To:	<linux@....linux.org.uk>, <mingo@...hat.com>, <x86@...nel.org>,
	<masami.hiramatsu.pt@...achi.com>,
	<anil.s.keshavamurthy@...el.com>, <davem@...emloft.net>,
	<ananth@...ibm.com>, <dave.long@...aro.org>, <tixy@...aro.org>
CC:	<lizefan@...wei.com>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: [RFC PATCH 05/11] kprobes: Add an KPROBE_FLAG_EARLY for early kprobe.

Introduce a KPROBE_FLAG_EARLY for futher expansion. KPROBE_FLAG_EARLY
indicates a kprobe is installed at very early stage, its resources
should be allocated statically.

Signed-off-by: Wang Nan <wangnan0@...wei.com>
---
 include/linux/kprobes.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 1ab5475..fa0de88 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -128,6 +128,7 @@ struct kprobe {
 				   * this flag is only for optimized_kprobe.
 				   */
 #define KPROBE_FLAG_FTRACE	8 /* probe is using ftrace */
+#define KPROBE_FLAG_EARLY	16 /* early kprobe */
 
 /* Has this kprobe gone ? */
 static inline int kprobe_gone(struct kprobe *p)
-- 
1.8.4

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