tree 87e2cc6fed3259a83364ede33d8f4d68173f8175
parent ba869023eac8354b17acdcff82b851ea8e7b1809
author Curt Wohlgemuth <curtw@google.com> 1266350789 -0500
committer Theodore Ts'o <tytso@mit.edu> 1266350789 -0500

ext4: Fix BUG_ON at fs/buffer.c:652 in no journal mode

Calls to ext4_handle_dirty_metadata should only pass in an inode
pointer for inode-specific metadata, and not for shared metadata
blocks such as inode table blocks, block group descriptors, the
superblock, etc.

The BUG_ON can get tripped when updating a special device (such as a
block device) that is opened (so that i_mapping is set in
fs/block_dev.c) and the file system is mounted in no journal mode.

Addresses-Google-Bug: #2404870

Signed-off-by: Curt Wohlgemuth <curtw@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>