tree ec5bf1df32709f0ebf359ce05b16f8ef608d2e9e
parent 117fff10d7f140e12dd43df20d3f9fda80577460
author Theodore Ts'o <tytso@mit.edu> 1346823110 -0400
committer Theodore Ts'o <tytso@mit.edu> 1346823110 -0400

ext4: grow the s_group_info array as needed

Previously we allocated the s_group_info array with enough space for
any future possible growth of the file system via online resize.  This
is unfortunate because it wastes memory, and it doesn't work for the
meta_bg scheme, since there is no limit based on the number of
reserved gdt blocks.  So add the code to grow the s_group_info array
as needed.

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