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udf: use sector_t and loff_t for file offsets

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Use sector_t and loff_t for file offsets in UDF filesystem.  Otherwise an
overflow may occur for long files.  Also make inode_bmap() return offset in
the extent in number of blocks instead of number of bytes - for most
callers this is more convenient.

Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara
2007-05-08 00:35:13 -07:00
committed by Linus Torvalds
parent 277866a0e3
commit 60448b1d6d
6 changed files with 38 additions and 35 deletions
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4
fs/udf/dir.c
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@@ -113,7 +113,8 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d
loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
struct buffer_head * bh = NULL, * tmp, * bha[16];
kernel_lb_addr bloc, eloc;
uint32_t extoffset, elen, offset;
uint32_t extoffset, elen;
sector_t offset;
int i, num;
unsigned int dt_type;
@@ -129,7 +130,6 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d
else if (inode_bmap(dir, nf_pos >> (dir->i_sb->s_blocksize_bits - 2),
&bloc, &extoffset, &eloc, &elen, &offset, &bh) == (EXT_RECORDED_ALLOCATED >> 30))
{
offset >>= dir->i_sb->s_blocksize_bits;
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen)
{