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Commit eaf37937 authored by Jan Kara's avatar Jan Kara Committed by Theodore Ts'o
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ext4: fix data offset overflow on 32-bit archs in ext4_inline_data_fiemap() 



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: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent 566370a2

fs/ext4/inline.c

+1 −1
Original line number Diff line number Diff line
@@ -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);