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iomap: Add IOMAP_F_DATA_INLINE flag

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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 <[email protected]>
Signed-off-by: Theodore Ts'o <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
This commit is contained in:
Andreas Gruenbacher authored and Theodore Ts'o committed 2017-10-01 17:56:54 -04:00
1 parent 19fe5f643f
commit 9ca250a513
2 files changed
+5 -2
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fs/iomap.c
+2
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@@ -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,
include/linux/iomap.h
+3 -2
View File
@@ -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: