ext4: fix overflows in SEEK_HOLE, SEEK_DATA implementations

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ext4_lblk_t is just u32 so multiplying it by blocksize can easily
overflow for files larger than 4 GB. Fix that by properly typing the
block offsets before shifting.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>

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Jan Kara 2013-05-31 19:37:56 -04:00 • committed by Theodore Ts'o

parent eaf3793728

commit e7293fd146

1 changed files with 7 additions and 7 deletions

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fs/ext4/file.c

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