[PATCH v9 1/5] iomap: add private pointer to struct iomap

[Andreas Gruenbacher <agruenba@redhat.com>]

Add a private pointer to struct iomap to allow filesystems to pass data
from iomap_begin to iomap_end.  Will be used by gfs2 for passing on the
on-disk inode buffer head.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
---
 include/linux/iomap.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index 43cc9208599f..9962dcb836b9 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -59,6 +59,7 @@ struct iomap {
 		struct dax_device   *dax_dev;
 		void		    *inline_data;
 	};
+	void			*private; /* filesystem private */
 
 	/*
 	 * Called when finished processing a page in the mapping returned in
-- 
2.17.1