exportfs: add FILEID_INVALID to indicate invalid fid_type
This commit adds FILEID_INVALID = 0xff in fid_type to
indicate invalid fid_type
It avoids using magic number 255
Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
Signed-off-by: Vivek Trivedi <vtrivedi018@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index 12291a7..0e14525 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -83,6 +83,11 @@
* 64 bit parent inode number.
*/
FILEID_NILFS_WITH_PARENT = 0x62,
+
+ /*
+ * Filesystems must not use 0xff file ID.
+ */
+ FILEID_INVALID = 0xff,
};
struct fid {