iomap: Add IOMAP_F_DATA_INLINE flag

Add a new IOMAP_F_DATA_INLINE flag to indicate that a mapping is in a disk area that contains data as well as metadata. In iomap_fiemap, map this flag to FIEMAP_EXTENT_DATA_INLINE. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>
mariux64 · Oct 1, 2017 · 9ca250a · 9ca250a
1 parent 19fe5f6
commit 9ca250a
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/fs/iomap.c b/fs/iomap.c
@@ -510,6 +510,8 @@ static int iomap_to_fiemap(struct fiemap_extent_info *fi,
 		flags |= FIEMAP_EXTENT_MERGED;
 	if (iomap->flags & IOMAP_F_SHARED)
 		flags |= FIEMAP_EXTENT_SHARED;
+	if (iomap->flags & IOMAP_F_DATA_INLINE)
+		flags |= FIEMAP_EXTENT_DATA_INLINE;
 
 	return fiemap_fill_next_extent(fi, iomap->offset,
 			iomap->addr != IOMAP_NULL_ADDR ? iomap->addr : 0,

diff --git a/include/linux/iomap.h b/include/linux/iomap.h
@@ -26,8 +26,9 @@ struct vm_fault;
 /*
  * Flags that only need to be reported for IOMAP_REPORT requests:
  */
-#define IOMAP_F_MERGED	0x10	/* contains multiple blocks/extents */
-#define IOMAP_F_SHARED	0x20	/* block shared with another file */
+#define IOMAP_F_MERGED		0x10	/* contains multiple blocks/extents */
+#define IOMAP_F_SHARED		0x20	/* block shared with another file */
+#define IOMAP_F_DATA_INLINE	0x40	/* data inline in the inode */
 
 /*
  * Magic value for addr: