tree e13143306cd64525cddd2cc2513c448275a1d95a
parent 353eb83c1422c6326eaab30ce044a179c6018169
author Theodore Ts'o <tytso@mit.edu> 1294680583 -0500
committer Theodore Ts'o <tytso@mit.edu> 1294680583 -0500

ext4: dynamically allocate the jbd2_inode in ext4_inode_info as necessary

Replace the jbd2_inode structure (which is 48 bytes) with a pointer
and only allocate the jbd2_inode when it is needed --- that is, when
the file system has a journal present and the inode has been opened
for writing.  This allows us to further slim down the ext4_inode_info
structure.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>