[fuse-devel] What is the cost of void *fuse_req_userdata(fuse_req_t req)?

[Goswin v. B. <gos...@we...>]

Hi,

I'm wondering, without looking at the source, what the cost of

void *fuse_req_userdata(fuse_req_t req)

is. Is that just a simple library call that exposes some data that is
at the ready anyway or does in involve a call into the fuse kernel
module and thereby context switching? Or something inbetween?

Same question about the fuse context. Does libfuse know the uid/gid of
anyway or does it have to ask the kernel for it seperately?

MfG
        Goswin