> Date: Mon, 4 Apr 2011 09:22:41 +0000 > From: Thordur Bjornsson <t...@openbsd.org> > > Hi, > > 1) Swapping to svnds has issues (pagedaemon deadlocks) and has been > broken since forever. > 2) Swapping to vnds makes no sense, why add another layer when you > can just swap to a regular file instead ? > > so stop supporting swapping to vnds. If this turns out to be kosher > I have a diff tested that removes vnds in favour of svnds. > > > OK ?
Doesn't this make it impossible to build kernels without vnd/svnd (RAMDISK)? > Index: uvm/uvm_swap.c > =================================================================== > RCS file: /home/thib/cvs/src/sys/uvm/uvm_swap.c,v > retrieving revision 1.100 > diff -u -p -r1.100 uvm_swap.c > --- uvm/uvm_swap.c 21 Dec 2010 20:14:44 -0000 1.100 > +++ uvm/uvm_swap.c 4 Apr 2011 09:14:59 -0000 > @@ -912,6 +912,10 @@ swap_on(struct proc *p, struct swapdev * > vp = sdp->swd_vp; > dev = sdp->swd_dev; > > + /* no swapping to vnds. */ > + if (bdevsw[major(dev)].d_strategy == &vndstrategy) > + return (EOPNOTSUPP); > + > /* > * open the swap file (mostly useful for block device files to > * let device driver know what is up).
