-#define S_QUOTA 4 /* Quota initialized for file */
-#define S_APPEND 8 /* Append-only file */
-#define S_IMMUTABLE 16 /* Immutable file */
-#define S_DEAD 32 /* removed, but still open directory */
-#define S_NOQUOTA 64 /* Inode is not counted to quota */
-#define S_DIRSYNC 128 /* Directory modifications are synchronous */
-#define S_NOCMTIME 256 /* Do not update file c/mtime */
-#define S_BARRIER 512 /* Barrier for chroot() */
-#define S_IUNLINK 1024 /* Immutable unlink */
+#define S_APPEND 4 /* Append-only file */
+#define S_IMMUTABLE 8 /* Immutable file */
+#define S_DEAD 16 /* removed, but still open directory */
+#define S_NOQUOTA 32 /* Inode is not counted to quota */
+#define S_DIRSYNC 64 /* Directory modifications are synchronous */
+#define S_NOCMTIME 128 /* Do not update file c/mtime */
+#define S_SWAPFILE 256 /* Do not truncate: swapon got its bmaps */
+#define S_BARRIER 1024 /* Barrier for chroot() */
+#define S_IUNLINK 2048 /* Immutable unlink */