direct_IO: use iov_iter_rw() instead of rw everywhere
The rw parameter to direct_IO is redundant with iov_iter->type, and
treated slightly differently just about everywhere it's used: some users
do rw & WRITE, and others do rw == WRITE where they should be doing a
bitwise check. Simplify this with the new iov_iter_rw() helper, which
always returns either READ or WRITE.
Signed-off-by: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 3adf49c..a685aea 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -226,7 +226,7 @@
ssize_t ret;
ret = blockdev_direct_IO(iocb, inode, iter, offset, udf_get_block);
- if (unlikely(ret < 0 && (rw & WRITE)))
+ if (unlikely(ret < 0 && iov_iter_rw(iter) == WRITE))
udf_write_failed(mapping, offset + count);
return ret;
}