From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Cc: hch@infradead.org
Subject: [PATCH] Text Edit Lock - Architecture Independent Code for Implementation
Date: Sun, 15 Jul 2007 19:35:41 -0400 [thread overview]
Message-ID: <20070715233541.GE22428@Krystal> (raw)
In-Reply-To: <20070714012411.845928928@polymtl.ca>
Text Edit Lock - Architecture Independent Code - kerneldoc implementation
Add kerneldoc to text edit lock API.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: hch@infradead.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
next prev parent reply other threads:[~2007-07-15 23:35 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-14 1:21 [patch 0/8] Text Edit Lock Mathieu Desnoyers
2007-07-14 1:21 ` [patch 1/8] Kprobes - do not use kprobes mutex in arch code Mathieu Desnoyers
2007-07-14 10:49 ` Christoph Hellwig
2007-07-14 19:20 ` Mathieu Desnoyers
2007-07-16 10:27 ` Ananth N Mavinakayanahalli
2007-07-16 15:12 ` Mathieu Desnoyers
2007-07-14 19:30 ` Mathieu Desnoyers
2007-07-14 19:51 ` [PATCH] Kprobes - use a mutex to protect the instruction pages list Mathieu Desnoyers
2007-07-17 5:38 ` Ananth N Mavinakayanahalli
2007-07-14 19:52 ` [PATCH] Kprobes - Declare kprobe_mutex static Mathieu Desnoyers
2007-07-17 5:39 ` Ananth N Mavinakayanahalli
2007-07-17 5:38 ` [patch 1/8] Kprobes - do not use kprobes mutex in arch code Ananth N Mavinakayanahalli
2007-07-14 1:21 ` [patch 2/8] Text Edit Lock - Architecture Independent Code Mathieu Desnoyers
2007-07-14 22:55 ` [PATCH] Immediate Values - Architecture Independent Code - Fixes following HCH comments Mathieu Desnoyers
2007-07-14 22:57 ` (drop : wrong email thread) " Mathieu Desnoyers
2007-07-15 1:28 ` [PATCH] Text Edit Lock - Architecture Independent Code - kerneldoc Mathieu Desnoyers
2007-07-15 9:04 ` Christoph Hellwig
2007-07-15 23:30 ` Mathieu Desnoyers
2007-07-15 23:35 ` Mathieu Desnoyers [this message]
2007-07-14 1:21 ` [patch 3/8] Text Edit Lock - i386 Mathieu Desnoyers
2007-07-14 16:18 ` Christoph Hellwig
2007-07-14 20:08 ` [PATCH] Text Edit Lock - i386 Use kernel_text_is_ro Mathieu Desnoyers
2007-07-14 23:31 ` [PATCH] Text Edit Lock - i386 Fix endif CONFIG_DEBUG_RODATA Mathieu Desnoyers
2007-07-15 1:29 ` [PATCH] Text Edit Lock - i386 kerneldoc Mathieu Desnoyers
2007-07-15 23:30 ` Mathieu Desnoyers
2007-07-15 23:36 ` [PATCH] Text Edit Lock - i386 kerneldoc implementation Mathieu Desnoyers
2007-07-14 1:21 ` [patch 4/8] Text Edit Lock - x86_64 Mathieu Desnoyers
2007-07-14 20:16 ` [PATCH] Text Edit Lock - x86_64 Use kernel_tex_is_ro Mathieu Desnoyers
2007-07-14 23:32 ` [PATCH] Text Edit Lock - x86_64 Fix !CONFIG_DEBUG_RODATA Mathieu Desnoyers
2007-07-15 1:30 ` [PATCH] Text Edit Lock - x86_64 kerneldoc Mathieu Desnoyers
2007-07-15 23:30 ` Mathieu Desnoyers
2007-07-15 23:38 ` [PATCH] Text Edit Lock - x86_64 kerneldoc implementation Mathieu Desnoyers
2007-07-14 1:21 ` [patch 5/8] Text Edit Lock - Alternative code for i386 and x86_64 Mathieu Desnoyers
2007-07-14 1:21 ` [patch 6/8] Text Edit Lock - Kprobes architecture independent support Mathieu Desnoyers
2007-07-14 19:56 ` [PATCH] Kprobes - no kprobes_mutex needed around arch_remove_kprobe calls Mathieu Desnoyers
2007-07-14 1:21 ` [patch 7/8] Text Edit Lock - kprobes i386 Mathieu Desnoyers
2007-07-14 1:21 ` [patch 8/8] Text Edit Lock - kprobes x86_64 Mathieu Desnoyers
2007-07-14 10:50 ` [patch 0/8] Text Edit Lock Christoph Hellwig
2007-07-14 15:21 ` Mathieu Desnoyers
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