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Date:	Thu, 7 Jun 2007 23:45:37 -0500
From:	"Jose R. Santos" <>
To:	linux-ext4 <>
Subject: [PATCH] JBD2: Change debug file path

The jbd2-debug file used to be located in /proc/sys/fs/jbd2-debug, but
create_proc_entry() does not do lookups on file names with more that one
directory deep.  This causes the entry creation to fail and hence, no proc
file is created.  This patch moves the file to /proc/jbd2-degug.

The file could be move to /proc/fs/jbd2/jbd2-debug, but it would require
some minor alterations to the jbd-stats patch.

This is also broken on the original jbd code.

Signed-off-by: Jose R. Santos <>
Index: linux-2.6.22-rc3/fs/Kconfig
--- linux-2.6.22-rc3.orig/fs/Kconfig	2007-05-25 21:55:14.000000000 -0500
+++ linux-2.6.22-rc3/fs/Kconfig	2007-06-07 23:17:54.110109520 -0500
@@ -260,10 +260,10 @@ config JBD2_DEBUG
 	  By default, the debugging output will be turned off.
 	  If you select Y here, then you will be able to turn on debugging
-	  with "echo N > /proc/sys/fs/jbd2-debug", where N is a number between
+	  with "echo N > /proc/jbd2-debug", where N is a number between
 	  1 and 5. The higher the number, the more debugging output is
 	  generated.  To turn debugging off again, do
-	  "echo 0 > /proc/sys/fs/jbd2-debug".
+	  "echo 0 > /proc/jbd2-debug".
 config FS_MBCACHE
 # Meta block cache for Extended Attributes (ext2/ext3/ext4)
Index: linux-2.6.22-rc3/fs/jbd2/journal.c
--- linux-2.6.22-rc3.orig/fs/jbd2/journal.c	2007-06-07 23:10:58.838650182 -0500
+++ linux-2.6.22-rc3/fs/jbd2/journal.c	2007-06-07 23:17:54.113442624 -0500
@@ -2288,7 +2288,7 @@ static int write_jbd_debug(struct file *
 	return count;
-#define JBD_PROC_NAME "sys/fs/jbd2-debug"
+#define JBD_PROC_NAME "jbd2-debug"
 static void __init create_jbd_proc_entry(void)

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