tree 90ae69dabe77312d3ddd45256752e2ad3675111b
parent 205dc0da96dffe78c6684a37ee0b574c929f5155
author Theodore Ts'o <tytso@mit.edu> 1536027901 -0400
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1538215654 -0700

ext4: fix online resizing for bigalloc file systems with a 1k block size

commit 5f8c10936fab2b69a487400f2872902e597dd320 upstream.

An online resize of a file system with the bigalloc feature enabled
and a 1k block size would be refused since ext4_resize_begin() did not
understand s_first_data_block is 0 for all bigalloc file systems, even
when the block size is 1k.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>