fuse: add atomic open+truncate support

[linux-2.6-omap-h63xx.git] / fs / fuse / inode.c

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 6ef3973f404871f5b5becb1fede29ac031dc7cff..3c13981f48e2c3ede7b28c0b5f4870fb24de66f4 100644 (file)
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -531,6 +531,8 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
                                fc->async_read = 1;
                        if (!(arg->flags & FUSE_POSIX_LOCKS))
                                fc->no_lock = 1;
+                       if (arg->flags & FUSE_ATOMIC_O_TRUNC)
+                               fc->atomic_o_trunc = 1;
                } else {
                        ra_pages = fc->max_read / PAGE_CACHE_SIZE;
                        fc->no_lock = 1;
@@ -553,7 +555,8 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req)
        arg->major = FUSE_KERNEL_VERSION;
        arg->minor = FUSE_KERNEL_MINOR_VERSION;
        arg->max_readahead = fc->bdi.ra_pages * PAGE_CACHE_SIZE;
-       arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS | FUSE_FILE_OPS;
+       arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS | FUSE_FILE_OPS |
+               FUSE_ATOMIC_O_TRUNC;
        req->in.h.opcode = FUSE_INIT;
        req->in.numargs = 1;
        req->in.args[0].size = sizeof(*arg);