Hi,
Re-send since seems my mail was dropped by vger, because of my wrong
envelope_from..
----
I was trying to enable the jbd debug option, and found that jbd-debug
in debugfs is read-only, shouldn't that be writable?
Found in both .31 stable kernel and .32 one.
Thanks,
Kangkai
>From 492ec0453ca3458c68deaa6e308ca01acc0eca1f Mon Sep 17 00:00:00 2001
From: Yin Kangkai <kangkai.yin@xxxxxxxxx>
Date: Thu, 3 Dec 2009 18:01:38 +0800
Subject: [PATCH] jbd: jbd-debug and jbd2-debug should be writable.
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@xxxxxxxxx>
---
fs/jbd/journal.c | 2 +-
fs/jbd2/journal.c | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 4160afa..bd224ee 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -1913,7 +1913,7 @@ static void __init jbd_create_debugfs_entry(void)
{
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);
}
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index fed8538..3c41c5a 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -2103,7 +2103,8 @@ static void __init jbd2_create_debugfs_entry(void)
{
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);
}
--
1.6.5
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