The FIEMAP_EXTENT_SHARED flag was added into kernel since commit
8c0414cd524e, so undefined FIEMAP_EXTENT_SHARED resulted in complier
error on old distros(e.g. RHEL6), as below:
----------------------------------------------------------------------
t_stripealign.c:99: error: 'FIEMAP_EXTENT_SHARED' undeclared (first use in this function)
----------------------------------------------------------------------
We fix it by defining the flag manually.
Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
#include <linux/fiemap.h>
#include <linux/fs.h>
+#ifndef FIEMAP_EXTENT_SHARED
+# define FIEMAP_EXTENT_SHARED 0x00002000
+#endif
+
#define FIEMAP_EXTENT_ACCEPTABLE (FIEMAP_EXTENT_LAST | \
FIEMAP_EXTENT_DATA_ENCRYPTED | FIEMAP_EXTENT_ENCODED | \
FIEMAP_EXTENT_UNWRITTEN | FIEMAP_EXTENT_MERGED | \