On Tue, Sep 09, 2008 at 08:16:37PM -0500, Danhua Shao wrote:
>
> According to my understandign, in sdt_subr.c, the following argument
> translation rule:
> { "nfsv3", "op-setattr-start", 1, 1, "nfsv3oparg_t *", "nfsv3opinfo_t *" },
>
> will trigger the following translator:
>
> translator nfsv3opinfo_t < nfsv3oparg_t *P > {
> noi_xid = ((struct svc_req *)arg0)->rq_xprt->xp_xid;
> noi_cred = (cred_t *)arg1;
> noi_curpath = (arg2 == 0 || ((vnode_t *)arg2)->v_path == NULL) ?
> "<unknown>" : ((vnode_t *)arg2)->v_path;
> };
>
> So the first three arguments in the DTRACE_NFSV3() macros will be accessed to
> construct a nfsv3opinfo_t value.
>
> Is it right?
That's exactly right.
Adam
--
Adam Leventhal, Fishworks http://blogs.sun.com/ahl
