tree bc5464d51f74b6321066948ecc5982c318638a01
parent 7a4352dccd18928ffddd188cc927f4983ba80f72
author Theodore Ts'o <tytso@mit.edu> 1407601991 -0400
committer Theodore Ts'o <tytso@mit.edu> 1407702068 -0400

resize2fs: disable the meta_bg feature if necessary

When shrinking a file system, if the number block groups drops below
the point where we started using the meta_bg layout, disable the
meta_bg feature and set s_first_meta_bg to zero.  This is necessary to
avoid creating an invalid/corrupted file system after the shrink.

Addresses-Debian-Bug: #756922

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reported-by: Marcin Wolcendorf <antymat+debian@chelmska.waw.pl>
Tested-by: Marcin Wolcendorf <antymat+debian@chelmska.waw.pl>