ext4: fix fencepost in s_first_meta_bg validation
authorTheodore Ts'o <tytso@mit.edu>
Wed, 15 Feb 2017 06:26:39 +0000 (01:26 -0500)
committerTheodore Ts'o <tytso@mit.edu>
Wed, 15 Feb 2017 06:26:39 +0000 (01:26 -0500)
commit2ba3e6e8afc9b6188b471f27cf2b5e3cf34e7af2
treecf7f415a16b6ba6347a332d26bb2e0934d7dc14d
parent0d06863f903ac5f4f6efb0273079d27de3e53a28
ext4: fix fencepost in s_first_meta_bg validation

It is OK for s_first_meta_bg to be equal to the number of block group
descriptor blocks.  (It rarely happens, but it shouldn't cause any
problems.)

https://bugzilla.kernel.org/show_bug.cgi?id=194567

Fixes: 3a4b77cd47bb837b8557595ec7425f281f2ca1fe
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
fs/ext4/super.c