FIEMAP_EXTENT_DELALLOC
if (!(flags & (FIEMAP_EXTENT_ENCODED | FIEMAP_EXTENT_DELALLOC)))
FIEMAP_EXTENT_DELALLOC |
flags |= (FIEMAP_EXTENT_DELALLOC |
if (flags & (FIEMAP_EXTENT_DELALLOC|
#define SET_UNKNOWN_FLAGS (FIEMAP_EXTENT_DELALLOC)
flags |= FIEMAP_EXTENT_DELALLOC | FIEMAP_EXTENT_UNKNOWN;
flags = FIEMAP_EXTENT_MERGED | FIEMAP_EXTENT_DELALLOC;