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authorJan Kara <jack@suse.cz>2007-05-08 00:35:14 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 11:15:21 -0700
commitff116fc8d1d43927c7651b91d5aec41eb30c4429 (patch)
tree9b452298e6f070be35b2d366ce4a10e4a1384d17 /fs/udf/dir.c
parent60448b1d6db4e82946ff9a2ac88df341f5fa87a2 (diff)
UDF: introduce struct extent_position
Introduce a structure extent_position to store a position of an extent and the corresponding buffer_head in one place. 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>
Diffstat (limited to 'fs/udf/dir.c')
-rw-r--r--fs/udf/dir.c25
1 files changed, 13 insertions, 12 deletions
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index 3c50b82a2307..00c15d3dd756 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -111,12 +111,13 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d
uint16_t liu;
uint8_t lfi;
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;
+ struct buffer_head *tmp, *bha[16];
+ kernel_lb_addr eloc;
+ uint32_t elen;
sector_t offset;
int i, num;
unsigned int dt_type;
+ struct extent_position epos = { NULL, 0, {0, 0}};
if (nf_pos >= size)
return 0;
@@ -128,22 +129,22 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
fibh.sbh = fibh.ebh = NULL;
else if (inode_bmap(dir, nf_pos >> (dir->i_sb->s_blocksize_bits - 2),
- &bloc, &extoffset, &eloc, &elen, &offset, &bh) == (EXT_RECORDED_ALLOCATED >> 30))
+ &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30))
{
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen)
{
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
- extoffset -= sizeof(short_ad);
+ epos.offset -= sizeof(short_ad);
else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
- extoffset -= sizeof(long_ad);
+ epos.offset -= sizeof(long_ad);
}
else
offset = 0;
if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block)))
{
- udf_release_data(bh);
+ udf_release_data(epos.bh);
return -EIO;
}
@@ -171,7 +172,7 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d
}
else
{
- udf_release_data(bh);
+ udf_release_data(epos.bh);
return -ENOENT;
}
@@ -179,14 +180,14 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d
{
filp->f_pos = nf_pos + 1;
- fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &bloc, &extoffset, &eloc, &elen, &offset, &bh);
+ fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &epos, &eloc, &elen, &offset);
if (!fi)
{
if (fibh.sbh != fibh.ebh)
udf_release_data(fibh.ebh);
udf_release_data(fibh.sbh);
- udf_release_data(bh);
+ udf_release_data(epos.bh);
return 0;
}
@@ -246,7 +247,7 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d
if (fibh.sbh != fibh.ebh)
udf_release_data(fibh.ebh);
udf_release_data(fibh.sbh);
- udf_release_data(bh);
+ udf_release_data(epos.bh);
return 0;
}
}
@@ -257,7 +258,7 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d
if (fibh.sbh != fibh.ebh)
udf_release_data(fibh.ebh);
udf_release_data(fibh.sbh);
- udf_release_data(bh);
+ udf_release_data(epos.bh);
return 0;
}