fuse: add helper for asynchronous writes

[linux-2.6] / include / linux / fuse.h

diff --git a/include/linux/fuse.h b/include/linux/fuse.h
index 9fbe9d258e2259b196fc752213dd84ea03a2f5d4..6f4a31266cd586a2eefe9fe2dd46fb5b2c3b0993 100644 (file)
--- a/include/linux/fuse.h
+++ b/include/linux/fuse.h
@@ -6,7 +6,15 @@
     See the file COPYING.
 */
 
-/* This file defines the kernel interface of FUSE */
+/*
+ * This file defines the kernel interface of FUSE
+ *
+ * Protocol changelog:
+ *
+ * 7.9:
+ *  - new fuse_getattr_in input argument of GETATTR
+ *  - add lk_flags in fuse_lk_in
+ */
 
 #include <asm/types.h>
 #include <linux/major.h>
@@ -15,7 +23,7 @@
 #define FUSE_KERNEL_VERSION 7
 
 /** Minor version number of this interface */
-#define FUSE_KERNEL_MINOR_VERSION 8
+#define FUSE_KERNEL_MINOR_VERSION 9
 
 /** The node ID of the root inode */
 #define FUSE_ROOT_ID 1
@@ -76,6 +84,8 @@ struct fuse_file_lock {
 #define FATTR_ATIME    (1 << 4)
 #define FATTR_MTIME    (1 << 5)
 #define FATTR_FH       (1 << 6)
+#define FATTR_ATIME_NOW        (1 << 7)
+#define FATTR_MTIME_NOW        (1 << 8)
 
 /**
  * Flags returned by the OPEN request
@@ -91,12 +101,31 @@ struct fuse_file_lock {
  */
 #define FUSE_ASYNC_READ                (1 << 0)
 #define FUSE_POSIX_LOCKS       (1 << 1)
+#define FUSE_FILE_OPS          (1 << 2)
+#define FUSE_ATOMIC_O_TRUNC    (1 << 3)
 
 /**
  * Release flags
  */
 #define FUSE_RELEASE_FLUSH     (1 << 0)
 
+/**
+ * Getattr flags
+ */
+#define FUSE_GETATTR_FH                (1 << 0)
+
+/**
+ * Lock flags
+ */
+#define FUSE_LK_FLOCK          (1 << 0)
+
+/**
+ * WRITE flags
+ *
+ * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed
+ */
+#define FUSE_WRITE_CACHE       (1 << 0)
+
 enum fuse_opcode {
        FUSE_LOOKUP        = 1,
        FUSE_FORGET        = 2,  /* no reply */
@@ -154,6 +183,12 @@ struct fuse_forget_in {
        __u64   nlookup;
 };
 
+struct fuse_getattr_in {
+       __u32   getattr_flags;
+       __u32   dummy;
+       __u64   fh;
+};
+
 struct fuse_attr_out {
        __u64   attr_valid;     /* Cache timeout for the attributes */
        __u32   attr_valid_nsec;
@@ -273,6 +308,8 @@ struct fuse_lk_in {
        __u64   fh;
        __u64   owner;
        struct fuse_file_lock lk;
+       __u32   lk_flags;
+       __u32   padding;
 };
 
 struct fuse_lk_out {