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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/reiserfs/inode.c
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@@ -3087,6 +3087,7 @@ static ssize_t reiserfs_direct_IO(int rw, struct kiocb *iocb,
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
size_t count = iov_iter_count(iter);
ssize_t ret;
ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset,
@@ -3098,7 +3099,7 @@ static ssize_t reiserfs_direct_IO(int rw, struct kiocb *iocb,
*/
if (unlikely((rw & WRITE) && ret < 0)) {
loff_t isize = i_size_read(inode);
loff_t end = offset + iov_length(iter->iov, iter->nr_segs);
loff_t end = offset + count;
if ((end > isize) && inode_newsize_ok(inode, isize) == 0) {
truncate_setsize(inode, isize);