e2fsck: avoid unnecessary close/reopen for non-MMP filesystems

For file systems that do not use MMP, there's no reason to close the
file system and then re-open the file system a second time, since
EXT2_FLAG_SKIP_MMP has no meaning for non-MMP file systems anyway.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andreas Dilger <adilger@whamcloud.com>
1 file changed