Re: Undelete in user space
Rogier Wolff (r.e.wolff@et.tudelft.nl)
Thu, 20 Jun 1996 16:26:29 +0200
Johan_Myr=E9en wrote:
>=20
> On Wed, 19 Jun 1996, Rogier Wolff wrote:
>=20
> > Undelete is a completely userspace implementable thing:
> > your libc's unlink call should be substituted by something that
> > renames the file to some /.wastebasket instead of simply
> > using the system's unlink system call.
>=20
> Doesn't anybody else think adding crud to the libc system call wrappe=
rs is
> a Bad Thing?
>=20
> If libc's unlink() function is changed as proposed it does not deserv=
e to
> be in section 2 of the manual, and should be moved to unlink(3) and a=
line
> added to the BUGS section stating that there is no easy way to make t=
he
> system call from a C program.
Linus' opinion on "what goes into the kernel and what doesn't" is=20
that what CAN be done in userspace, should go in userspace.=20
MOST users won't want this undelete stuff. If they DO, then they=20
should configure the extra libc-with-undelete.whatever.=20
That libc should also provide a symbol called for example
"real_unlink" to use the system call....
Roger.
--=20
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