tree 0bcdefe7f23b4fba9a9b20e02cec08d0550de316
parent 1b8b9750f07cdd6e13f12c06ae7ec853f2abbe6c
author Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 1332383355 -0400
committer Theodore Ts'o <tytso@mit.edu> 1332383355 -0400

ext4: write superblock only once on unmount

In some rather rare cases it is possible that ext4 may the superblock
to the media twice. This patch makes sure this does not happen. This
should speed up unmounting in those cases.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>