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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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fs/ext2/inode.c
+2 -2
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@@ -856,13 +856,13 @@ ext2_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter,
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, ext2_get_block);
if (ret < 0 && (rw & WRITE))
ext2_write_failed(mapping, offset +
iov_length(iter->iov, iter->nr_segs));
ext2_write_failed(mapping, offset + count);
return ret;
}