[PATCH] FUSE: atomic create+open

This patch adds an atomic create+open operation.  This does not yet work if
the file type changes between lookup and create+open, but solves the
permission checking problems for the separte create and open methods.

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

1 files changed, 14 insertions, 0 deletions

diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index c4e8c3b47982..0ea5301f86be 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -269,6 +269,9 @@ struct fuse_conn {
         /** Is access not implemented by fs? */
         unsigned no_access : 1;
 
+        /** Is create not implemented by fs? */
+        unsigned no_create : 1;
+
         /** Backing dev info */
         struct backing_dev_info bdi;
 };
@@ -340,6 +343,17 @@ size_t fuse_send_read_common(struct fuse_req *req, struct file *file,
  */
 int fuse_open_common(struct inode *inode, struct file *file, int isdir);
 
+struct fuse_file *fuse_file_alloc(void);
+void fuse_file_free(struct fuse_file *ff);
+void fuse_finish_open(struct inode *inode, struct file *file,
+                      struct fuse_file *ff, struct fuse_open_out *outarg);
+
+/**
+ * Send a RELEASE request
+ */
+void fuse_send_release(struct fuse_conn *fc, struct fuse_file *ff,
+                       u64 nodeid, struct inode *inode, int flags, int isdir);
+
 /**
  * Send RELEASE or RELEASEDIR request
  */