commit e43c460dcd265431df7a5e481450ad9c0596c10c
author Darrick J. Wong <darrick.wong@oracle.com> Mon Sep 19 10:13:02 2016 +1000
committer Dave Chinner <david@fromorbit.com> Mon Sep 19 10:13:02 2016 +1000
tree 2b68863bf6d156f977c9e48e5bb2b56883139922
parent 5f4e5752a8a3a72c79514def2ad9fc7cd410ce2e

iomap: add a flag to report shared extents

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>

fs/iomap.c

diff --git a/fs/iomap.c b/fs/iomap.c
index e9b3f99..ec411a6 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -512,6 +512,8 @@
 
 	if (iomap->flags & IOMAP_F_MERGED)
 		flags |= FIEMAP_EXTENT_MERGED;
+	if (iomap->flags & IOMAP_F_SHARED)
+		flags |= FIEMAP_EXTENT_SHARED;
 
 	return fiemap_fill_next_extent(fi, iomap->offset,
 			iomap->blkno != IOMAP_NULL_BLOCK ? iomap->blkno << 9: 0,