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get rid of pointless iov_length() in ->direct_IO()

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all callers have iov_length(iter->iov, iter->nr_segs) == iov_iter_count(iter)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-03-04 22:38:00 -05:00
parent 16b1f05d7f
commit a6cbcd4a4a
18 changed files with 32 additions and 30 deletions
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3
fs/udf/inode.c
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@ -223,12 +223,13 @@ static ssize_t udf_direct_IO(int rw, struct kiocb *iocb,
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
struct inode *inode = mapping->host;
size_t count = iov_iter_count(iter);
ssize_t ret;
ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset, iter->nr_segs,
udf_get_block);
if (unlikely(ret < 0 && (rw & WRITE)))
udf_write_failed(mapping, offset + iov_length(iter->iov, iter->nr_segs));
udf_write_failed(mapping, offset + count);
return ret;
}