This is a note to let you know that I've just added the patch titled
ext3: skip orphan cleanup on rocompat fs
to the 2.6.37-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:
ext3-skip-orphan-cleanup-on-rocompat-fs.patch
and it can be found in the queue-2.6.37 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From ce654b37f87980d95f339080e4c3bdb2370bdf22 Mon Sep 17 00:00:00 2001
From: Amir Goldstein <[email protected]>
Date: Sat, 26 Feb 2011 22:40:19 +0200
Subject: ext3: skip orphan cleanup on rocompat fs
From: Amir Goldstein <[email protected]>
commit ce654b37f87980d95f339080e4c3bdb2370bdf22 upstream.
Orphan cleanup is currently executed even if the file system has some
number of unknown ROCOMPAT features, which deletes inodes and frees
blocks, which could be very bad for some RO_COMPAT features.
This patch skips the orphan cleanup if it contains readonly compatible
features not known by this ext3 implementation, which would prevent
the fs from being mounted (or remounted) readwrite.
Signed-off-by: Amir Goldstein <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/ext3/super.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -1440,6 +1440,13 @@ static void ext3_orphan_cleanup (struct
return;
}
+ /* Check if feature set allows readwrite operations */
+ if (EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP)) {
+ ext3_msg(sb, KERN_INFO, "Skipping orphan cleanup due to "
+ "unknown ROCOMPAT features");
+ return;
+ }
+
if (EXT3_SB(sb)->s_mount_state & EXT3_ERROR_FS) {
if (es->s_last_orphan)
jbd_debug(1, "Errors on filesystem, "
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.37/ext3-skip-orphan-cleanup-on-rocompat-fs.patch
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