This is a note to let you know that I've just added the patch titled
mm: mmu_notifier: make the mmu_notifier srcu static
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mm-mmu_notifier-make-the-mmu_notifier-srcu-static.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 70400303ce0c4ced3139499c676d5c79636b0c72 Mon Sep 17 00:00:00 2001
From: Andrea Arcangeli <[email protected]>
Date: Mon, 8 Oct 2012 16:31:52 -0700
Subject: mm: mmu_notifier: make the mmu_notifier srcu static
From: Andrea Arcangeli <[email protected]>
commit 70400303ce0c4ced3139499c676d5c79636b0c72 upstream.
The variable must be static especially given the variable name.
s/RCU/SRCU/ over a few comments.
Signed-off-by: Andrea Arcangeli <[email protected]>
Cc: Xiao Guangrong <[email protected]>
Cc: Sagi Grimberg <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Haggai Eran <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
mm/mmu_notifier.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -20,7 +20,7 @@
#include <linux/slab.h>
/* global SRCU for all MMs */
-struct srcu_struct srcu;
+static struct srcu_struct srcu;
/*
* This function can't run concurrently against mmu_notifier_register
@@ -41,7 +41,7 @@ void __mmu_notifier_release(struct mm_st
int id;
/*
- * RCU here will block mmu_notifier_unregister until
+ * SRCU here will block mmu_notifier_unregister until
* ->release returns.
*/
id = srcu_read_lock(&srcu);
@@ -302,7 +302,7 @@ void mmu_notifier_unregister(struct mmu_
if (!hlist_unhashed(&mn->hlist)) {
/*
- * RCU here will force exit_mmap to wait ->release to finish
+ * SRCU here will force exit_mmap to wait ->release to finish
* before freeing the pages.
*/
int id;
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/mmu_notifier_unregister-null-pointer-deref-and-multiple-release-callouts.patch
queue-3.4/hrtimer-prevent-hrtimer_enqueue_reprogram-race.patch
queue-3.4/mm-mmu_notifier-make-the-mmu_notifier-srcu-static.patch
queue-3.4/mm-mmu_notifier-have-mmu_notifiers-use-a-global-srcu-so-they-may-safely-schedule.patch
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