linux-kernel - [PATCH] Text Edit Lock - Architecture Independent Code for Implementation

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Message-ID: <20070715233541.GE22428@Krystal>
Date:	Sun, 15 Jul 2007 19:35:41 -0400
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Cc:	hch@...radead.org
Subject: [PATCH] Text Edit Lock - Architecture Independent Code for Implementation

Text Edit Lock - Architecture Independent Code - kerneldoc implementation

Add kerneldoc to text edit lock API.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
CC: hch@...radead.org
---
 mm/memory.c |   16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

Index: linux-2.6-lttng/mm/memory.c
===================================================================
--- linux-2.6-lttng.orig/mm/memory.c	2007-07-15 18:56:32.000000000 -0400
+++ linux-2.6-lttng/mm/memory.c	2007-07-15 18:57:18.000000000 -0400
@@ -2820,9 +2820,12 @@ int access_process_vm(struct task_struct
 }
 EXPORT_SYMBOL_GPL(access_process_vm);
 
-/*
- * Lock the kernel text for mutual write exclusion. Used for dynamic code
- * patching.
+/**
+ * kernel_text_lock     -   Take the kernel text modification lock
+ *
+ * Insures mutual write exclusion of kernel and modules text live text
+ * modification. Should be used for code patching.
+ * Users of this lock can sleep.
  */
 void __kprobes kernel_text_lock(void)
 {
@@ -2830,6 +2833,13 @@ void __kprobes kernel_text_lock(void)
 }
 EXPORT_SYMBOL_GPL(kernel_text_lock);
 
+/**
+ * kernel_text_unlock   -   Release the kernel text modification lock
+ *
+ * Insures mutual write exclusion of kernel and modules text live text
+ * modification. Should be used for code patching.
+ * Users of this lock can sleep.
+ */
 void __kprobes kernel_text_unlock(void)
 {
 	mutex_unlock(&text_mutex);
-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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