linux-kernel - [patch 143/149] jbd: jbd-debug and jbd2-debug should be writable

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Date:	Thu, 01 Jul 2010 10:32:49 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Yin Kangkai <kangkai.yin@...el.com>, Jan Kara <jack@...e.cz>,
	Theodore Tso <tytso@....edu>
Subject: [patch 143/149] jbd: jbd-debug and jbd2-debug should be writable

2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Yin Kangkai <kangkai.yin@...el.com>

commit 765f8361902d015c864d5e62019b2f139452d7ef upstream.

jbd-debug and jbd2-debug is currently read-only (S_IRUGO), which is not
correct. Make it writable so that we can start debuging.

Signed-off-by: Yin Kangkai <kangkai.yin@...el.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Jan Kara <jack@...e.cz>
Cc: Theodore Ts'o <tytso@....edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 fs/jbd/journal.c  |    2 +-
 fs/jbd2/journal.c |    3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -1913,7 +1913,7 @@ static void __init jbd_create_debugfs_en
 {
 	jbd_debugfs_dir = debugfs_create_dir("jbd", NULL);
 	if (jbd_debugfs_dir)
-		jbd_debug = debugfs_create_u8("jbd-debug", S_IRUGO,
+		jbd_debug = debugfs_create_u8("jbd-debug", S_IRUGO | S_IWUSR,
 					       jbd_debugfs_dir,
 					       &journal_enable_debug);
 }
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -2115,7 +2115,8 @@ static void __init jbd2_create_debugfs_e
 {
 	jbd2_debugfs_dir = debugfs_create_dir("jbd2", NULL);
 	if (jbd2_debugfs_dir)
-		jbd2_debug = debugfs_create_u8(JBD2_DEBUG_NAME, S_IRUGO,
+		jbd2_debug = debugfs_create_u8(JBD2_DEBUG_NAME,
+					       S_IRUGO | S_IWUSR,
 					       jbd2_debugfs_dir,
 					       &jbd2_journal_enable_debug);
 }


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