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>

2 files changed, 5 insertions, 2 deletions

diff --git a/fs/iomap.c b/fs/iomap.c
index d25db039ee13..379eb9896093 100644
--- 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
index 7b8a615fa021..2b0790dbd6ea 100644
--- 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: