Theodore Ts'o 4ba9e687ed 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>
2018-09-29 03:07:34 -07:00
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