VOP_VPTOFH(9)

โœจ VOP_VPTOFH โœจ

okay so bestie, welcome to the Kernel Developer's Manual, section 9 โ€” this is the page for VOP_VPTOFH, and it's literally the glow-up that turns a vnode into an NFS filehandle ๐Ÿ’…


๐ŸŽ€ NAME ๐ŸŽ€

VOP_VPTOFH โ€” turn a vnode into an NFS filehandle

like. that's it. that's the whole job. iconic.


๐ŸŒธ SYNOPSIS ๐ŸŒธ

#include <sys/param.h>
#include <sys/vnode.h>

int
VOP_VPTOFH(struct vnode *vp, struct fid *fhp);

yes you need both headers, don't @ me, just include them ๐Ÿซถ


๐Ÿฆ‹ DESCRIPTION ๐Ÿฆ‹

So the NFS server uses this one to cook up an opaque filehandle โ€” and when we say opaque we mean it, the contents are giving mystery, do not perceive them ๐Ÿ”ฎ โ€” that uniquely identifies the file. Once that handle exists, an NFS client can use it later to get back at the file. it's giving "remember me" but for inodes ๐Ÿ’–

its arguments are:

  • vp โ€” the vnode you wanna make a filehandle for. the main character ๐Ÿซถ
  • fhp โ€” return parameter for the filehandle. it's a return param bestie, so that's where the answer lands, not where you put a question ๐ŸŒŸ

๐ŸŒˆ SEE ALSO ๐ŸŒˆ

(the reverse direction is VFS_FHTOVP(9) btw, iykyk ๐Ÿ”)


๐Ÿ‘‘ AUTHORS ๐Ÿ‘‘

This manual page was written by Doug Rabson. thank you Doug, absolute legend, no cap ๐Ÿ’œ


and that's the vibe check, bestie โ€” this page came from Debian, dated February 16, 2007, and it ate. periodt ๐ŸŽ€โœจ

๐Ÿ“ฆ where this page comes from