linux-kernel - [PATCH] Text Edit Lock - x86

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Date:	Sun, 15 Jul 2007 19:38:16 -0400
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Cc:	Andi Kleen <andi@...stfloor.org>, hch@...radead.org
Subject: [PATCH] Text Edit Lock - x86_64 kerneldoc implementation

Text Edit Lock - x86_64 kerneldoc implementation

Add kerneldoc to text edit lock x86_64 API.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
CC: hch@...radead.org
CC: Andi Kleen <andi@...stfloor.org>
---
 arch/x86_64/mm/init.c |   16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

Index: linux-2.6-lttng/arch/x86_64/mm/init.c
===================================================================
--- linux-2.6-lttng.orig/arch/x86_64/mm/init.c	2007-07-15 19:01:50.000000000 -0400
+++ linux-2.6-lttng/arch/x86_64/mm/init.c	2007-07-15 19:02:18.000000000 -0400
@@ -617,8 +617,13 @@ void mark_rodata_ro(void)
 	global_flush_tlb();
 }
 
-/*
- * Mark kernel text pages writable.
+/**
+ * kernel_text_mark_rw  -   Mark kernel text RW
+ * @address:                location of the code
+ * @len:                    size of code to mark
+ *
+ * Mark the kernel text pages writable so they can safely written to. This is
+ * useful for code patching.
  */
 void kernel_text_mark_rw(unsigned long address, size_t len)
 {
@@ -636,6 +641,13 @@ void kernel_text_mark_rw(unsigned long a
 }
 EXPORT_SYMBOL_GPL(kernel_text_mark_rw);
 
+/**
+ * kernel_text_unmark  -    Mark kernel text back to its original flags
+ * @address:                location of the code
+ * @len:                    size of code to mark
+ *
+ * Mark the kernel text back to its original flags.
+ */
 void kernel_text_unmark(unsigned long address, size_t len)
 {
 	if (kernel_text_is_ro && address >= PFN_ALIGN(_text)
-- 
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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