fuse: add file handle to getattr operation

Add necessary protocol changes for supplying a file handle with the getattr
operation.  Step the API version to 7.9.

This patch doesn't actually supply the file handle, because that needs some
kind of VFS support, which we haven't yet been able to agree upon.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 21 insertions, 2 deletions

diff --git a/include/linux/fuse.h b/include/linux/fuse.h
index 9fbe9d258e22..a50d0d9ac7ae 100644
--- a/include/linux/fuse.h
+++ b/include/linux/fuse.h
@@ -6,7 +6,14 @@
     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
+ */
 
 #include <asm/types.h>
 #include <linux/major.h>
@@ -15,7 +22,7 @@
 #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
@@ -91,12 +98,18 @@ struct fuse_file_lock {
  */
 #define FUSE_ASYNC_READ         (1 << 0)
 #define FUSE_POSIX_LOCKS        (1 << 1)
+#define FUSE_FILE_OPS           (1 << 2)
 
 /**
  * Release flags
  */
 #define FUSE_RELEASE_FLUSH      (1 << 0)
 
+/**
+ * Getattr flags
+ */
+#define FUSE_GETATTR_FH         (1 << 0)
+
 enum fuse_opcode {
         FUSE_LOOKUP        = 1,
         FUSE_FORGET        = 2,  /* no reply */
@@ -154,6 +167,12 @@ 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;