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ext4: fix data offset overflow on 32-bit archs in ext4_inline_data_fiemap()

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On 32-bit archs when sector_t is defined as 32-bit the logic computing
data offset in ext4_inline_data_fiemap(). Fix that by properly typing
the shifted value.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Jan Kara 2013-05-31 19:33:42 -04:00 committed by Theodore Ts'o
parent 566370a2e5
commit eaf3793728
1 changed files with 1 additions and 1 deletions
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2
fs/ext4/inline.c
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@ -1842,7 +1842,7 @@ int ext4_inline_data_fiemap(struct inode *inode,
if (error)
goto out;
physical = iloc.bh->b_blocknr << inode->i_sb->s_blocksize_bits;
physical = (__u64)iloc.bh->b_blocknr << inode->i_sb->s_blocksize_bits;
physical += (char *)ext4_raw_inode(&iloc) - iloc.bh->b_data;
physical += offsetof(struct ext4_inode, i_block);
length = i_size_read(inode);