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[6/6] iomap: add private pointer to struct iomap

Message ID 20180619164137.13720-7-hch@lst.de (mailing list archive)
State Accepted
Headers show

Commit Message

Christoph Hellwig June 19, 2018, 4:41 p.m. UTC 
From: 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>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/iomap.h | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index 45f43865b0f0..1f36523d448a 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -57,6 +57,7 @@  struct iomap {
 	struct block_device	*bdev;	/* block device for I/O */
 	struct dax_device	*dax_dev; /* dax_dev for dax operations */
 	void			*inline_data;
+	void			*private; /* filesystem private */
 
 	/*
 	 * Called when finished processing a page in the mapping returned in