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comments on some nfsm_ macros.

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This commit is contained in:
yamt 2004-03-19 13:52:07 +00:00
parent 886a1acd28
commit 0f554e4324
1 changed files with 22 additions and 1 deletions
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23
sys/nfs/nfsm_subs.h
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@ -1,4 +1,4 @@
/* $NetBSD: nfsm_subs.h,v 1.33 2004/03/15 11:47:52 yamt Exp $ */
/* $NetBSD: nfsm_subs.h,v 1.34 2004/03/19 13:52:07 yamt Exp $ */
/*
* Copyright (c) 1989, 1993
@ -143,6 +143,19 @@
memcpy((caddr_t)tl, (caddr_t)(f), NFSX_V3FH); \
}
/*
* nfsm_mtofh: dissect a "resulted obj" part of create-like operations
* like mkdir.
*
* for nfsv3, dissect post_op_fh3 and following post_op_attr.
* for nfsv2, dissect fhandle and following fattr.
*
* d: (IN) the vnode of the parent directry.
* v: (OUT) the corresponding vnode (we allocate one if needed)
* v3: (IN) true for nfsv3.
* f: (OUT) true if we got valid filehandle. always true for nfsv2.
*/
#define nfsm_mtofh(d, v, v3, f) \
{ struct nfsnode *ttnp; nfsfh_t *ttfhp; int ttfhsize; \
if (v3) { \
@ -171,6 +184,14 @@
nfsm_loadattr((v), (struct vattr *)0, 0); \
}
/*
* nfsm_getfh: dissect a filehandle.
*
* f: (OUT) a filehandle.
* s: (OUT) size of the filehandle in bytes.
* v3: (IN) true if nfsv3.
*/
#define nfsm_getfh(f, s, v3) \
{ if (v3) { \
nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \