tree d6badf52d7d389180b1557fdaac856f1952031ce
parent 6ca470d7b5e7639b7925b3202e796282703b6d5d
author Zheng Liu <wenqing.lz@taobao.com> 1362962939 -0400
committer Theodore Ts'o <tytso@mit.edu> 1362962939 -0400

ext4: avoid a potential overflow in ext4_es_can_be_merged()

Check the length of an extent to avoid a potential overflow in
ext4_es_can_be_merged().

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Dmitry Monakhov <dmonakhov@openvz.org>