diff options
Diffstat (limited to 'fs/fuse/dev.c')
| -rw-r--r-- | fs/fuse/dev.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index ca887314aba9..ba1107977f2e 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -511,6 +511,35 @@ void fuse_request_send(struct fuse_conn *fc, struct fuse_req *req) } EXPORT_SYMBOL_GPL(fuse_request_send); +ssize_t fuse_simple_request(struct fuse_conn *fc, struct fuse_args *args) +{ + struct fuse_req *req; + ssize_t ret; + + req = fuse_get_req(fc, 0); + if (IS_ERR(req)) + return PTR_ERR(req); + + req->in.h.opcode = args->in.h.opcode; + req->in.h.nodeid = args->in.h.nodeid; + req->in.numargs = args->in.numargs; + memcpy(req->in.args, args->in.args, + args->in.numargs * sizeof(struct fuse_in_arg)); + req->out.argvar = args->out.argvar; + req->out.numargs = args->out.numargs; + memcpy(req->out.args, args->out.args, + args->out.numargs * sizeof(struct fuse_arg)); + fuse_request_send(fc, req); + ret = req->out.h.error; + if (!ret && args->out.argvar) { + BUG_ON(args->out.numargs != 1); + ret = req->out.args[0].size; + } + fuse_put_request(fc, req); + + return ret; +} + static void fuse_request_send_nowait_locked(struct fuse_conn *fc, struct fuse_req *req) { |