[PATCH] ext3: external journal device as a mount option
The patch below adds a new mount option to allow the external journal
device to be specified.
The syntax is as follows:
# mount -t ext3 -o journal_dev=0x0820 ...
where 0x0820 means major=8 and minor=32.
Signed-off-by: Johann Lombardi <johann.lombardi@bull.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/Documentation/filesystems/ext3.txt b/Documentation/filesystems/ext3.txt
index 9840d5b..22e4040 100644
--- a/Documentation/filesystems/ext3.txt
+++ b/Documentation/filesystems/ext3.txt
@@ -22,6 +22,11 @@
the inode which will represent the ext3 file
system's journal file.
+journal_dev=devnum When the external journal device's major/minor numbers
+ have changed, this option allows to specify the new
+ journal location. The journal device is identified
+ through its new major/minor numbers encoded in devnum.
+
noload Don't load the journal on mounting.
data=journal All data are committed into the journal prior