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authorAkira Fujita <a-fujita@rs.jp.nec.com>2009-09-16 14:25:07 -0400
committerTheodore Ts'o <tytso@mit.edu>2009-09-16 14:25:07 -0400
commit347fa6f1c7cb5df2b38d3c9167cfe242ce0cd1da (patch)
tree1e4b467f7baa6c5fe291b0f53d6483776b2d5a54 /fs/partitions
parent2147b1a6a48e28399120ca51d4a91840a278611f (diff)
ext4: Add null extent check to ext_get_path
There is the possibility that path structure which is taken by ext4_ext_find_extent() indicates null extents. Because during data block exchanging in ext4_move_extents(), constitution of an extent tree may be changed. As a solution, the patch adds null extent check to ext_get_path(). Reported-by: Peng Tao <bergwolf@gmail.com> Signed-off-by: Akira Fujita <a-fujita@rs.jp.nec.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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