[PATCH] FUSE: add access call

Add a new access call, which will only be called if ->permission is invoked
from sys_access().  In all other cases permission checking is delayed until
the actual filesystem operation.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/linux/fuse.h

diff --git a/include/linux/fuse.h b/include/linux/fuse.h
index 6e91c9a..507913b 100644
--- a/include/linux/fuse.h
+++ b/include/linux/fuse.h
@@ -99,7 +99,8 @@
 	FUSE_OPENDIR       = 27,
 	FUSE_READDIR       = 28,
 	FUSE_RELEASEDIR    = 29,
-	FUSE_FSYNCDIR      = 30
+	FUSE_FSYNCDIR      = 30,
+	FUSE_ACCESS        = 34
 };
 
 /* Conservative buffer size for the client */
@@ -222,6 +223,11 @@
 	__u32	padding;
 };
 
+struct fuse_access_in {
+	__u32	mask;
+	__u32	padding;
+};
+
 struct fuse_init_in_out {
 	__u32	major;
 	__u32	minor;