ext4: Use a fake block number for delayed new buffer_head
commit9cb18641b3fd86309735fc4e2df14aaf9c50469c
authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Tue, 2 Jun 2009 12:07:57 +0000 (2 08:07 -0400)
committerGreg Kroah-Hartman <gregkh@suse.de>
Mon, 15 Jun 2009 16:40:37 +0000 (15 09:40 -0700)
tree6b4c350399e274fd627c39c73218b3ef98bfb18f
parentb0b1dd413d407ba6879e8286a10c5781f2f2ec5e
ext4: Use a fake block number for delayed new buffer_head

(cherry picked from commit 33b9817e2ae097c7b8d256e3510ac6c54fc6d9d0)

Use a very large unsigned number (~0xffff) as as the fake block number
for the delayed new buffer. The VFS should never try to write out this
number, but if it does, this will make it obvious.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
fs/ext4/inode.c