1 files changed, 21 insertions, 0 deletions

diff --git a/include/linux/falloc.h b/include/linux/falloc.h
index 8e912ab6a072..3c155107d61f 100644
--- a/include/linux/falloc.h
+++ b/include/linux/falloc.h
@@ -3,4 +3,25 @@
 
 #define FALLOC_FL_KEEP_SIZE     0x01 /* default is extend size */
 
+#ifdef __KERNEL__
+
+/*
+ * Space reservation ioctls and argument structure
+ * are designed to be compatible with the legacy XFS ioctls.
+ */
+struct space_resv {
+        __s16           l_type;
+        __s16           l_whence;
+        __s64           l_start;
+        __s64           l_len;          /* len == 0 means until end of file */
+        __s32           l_sysid;
+        __u32           l_pid;
+        __s32           l_pad[4];       /* reserved area */
+};
+
+#define FS_IOC_RESVSP           _IOW('X', 40, struct space_resv)
+#define FS_IOC_RESVSP64         _IOW('X', 42, struct space_resv)
+
+#endif /* __KERNEL__ */
+
 #endif /* _FALLOC_H_ */