On 16 Jul 2001, Assar Westerlund wrote:

> Konrad Schroder <perseant@hitl.washington.edu> writes:
> > LFS uses it; if it didn't exist, lfs_symlink would have to inline
> > ufs_symlink in order to know whether the symlink succeeded or not, so it
> > could know whether it had to take VDIROP off of a vnode or not.
> 
> I see.  And lfs cannot just check the return value from ufs_symlink
> since it might have created the node and then failed to write the
> contents of the symlink into a disk block.
> 
> a) document that VOP_SYMLINK always gets *a_vpp = NULL in and can
> choose to set it or not, but that it should be vrefed if != NULL.  ufs
> can always set it, thereby making lfs happy

Sounds the best to me.

Take care,

Bil