shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-10 12:57:06 +09:00
Code Issues Packages Projects Releases Wiki Activity

ext3: skip orphan cleanup on rocompat fs

Browse Source 
commit ce654b37f8 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 <amir73il@users.sf.net>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Amir Goldstein
2011-02-26 22:40:19 +02:00
committed by Greg Kroah-Hartman
parent 62a9fca67f
commit c279e36a1c
1 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
fs/ext3/super.c
View File

@@ -1404,6 +1404,13 @@ static void ext3_orphan_cleanup (struct super_block * sb,
return;
}
/* Check if feature set allows readwrite operations */
if (EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP)) {
printk(KERN_INFO "EXT3-fs: %s: Skipping orphan cleanup due to "
"unknown ROCOMPAT features\n", sb->s_id);
return;
}
if (EXT3_SB(sb)->s_mount_state & EXT3_ERROR_FS) {
if (es->s_last_orphan)
jbd_debug(1, "Errors on filesystem, "