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authorMarcin Slusarz <marcin.slusarz@gmail.com>2008-02-08 04:20:39 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-08 09:22:35 -0800
commit3f2587bb22bbcd679e9cf034fb4a29bb48b051b3 (patch)
tree47052ce02f10d5f72656b41763feab86d105ea6a /fs/udf/inode.c
parent4b11111aba6c80cc2969fd1806d2a869bfc9f357 (diff)
downloadop-kernel-dev-3f2587bb22bbcd679e9cf034fb4a29bb48b051b3.zip
op-kernel-dev-3f2587bb22bbcd679e9cf034fb4a29bb48b051b3.tar.gz
udf: create common function for tag checksumming
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Cc: 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/inode.c')
-rw-r--r--fs/udf/inode.c15
1 files changed, 2 insertions, 13 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 3ce2f6d..42783da 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1440,7 +1440,6 @@ static int udf_update_inode(struct inode *inode, int do_sync)
uint32_t udfperms;
uint16_t icbflags;
uint16_t crclen;
- int i;
kernel_timestamp cpu_time;
int err = 0;
struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
@@ -1476,12 +1475,7 @@ static int udf_update_inode(struct inode *inode, int do_sync)
use->descTag.descCRC = cpu_to_le16(udf_crc((char *)use +
sizeof(tag), crclen,
0));
-
- use->descTag.tagChecksum = 0;
- for (i = 0; i < 16; i++)
- if (i != 4)
- use->descTag.tagChecksum +=
- ((uint8_t *)&(use->descTag))[i];
+ use->descTag.tagChecksum = udf_tag_checksum(&use->descTag);
mark_buffer_dirty(bh);
brelse(bh);
@@ -1650,12 +1644,7 @@ static int udf_update_inode(struct inode *inode, int do_sync)
fe->descTag.descCRCLength = cpu_to_le16(crclen);
fe->descTag.descCRC = cpu_to_le16(udf_crc((char *)fe + sizeof(tag),
crclen, 0));
-
- fe->descTag.tagChecksum = 0;
- for (i = 0; i < 16; i++)
- if (i != 4)
- fe->descTag.tagChecksum +=
- ((uint8_t *)&(fe->descTag))[i];
+ fe->descTag.tagChecksum = udf_tag_checksum(&fe->descTag);
/* write the data blocks */
mark_buffer_dirty(bh);
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