Date: Sun, 30 Sep 2001 15:00:31 +0000 From: Vladimir Dozen <vladimir-dozen@mail.ru> To: Alfred Perlstein <bright@mu.org> Cc: Vladimir Dozen <vladimir-dozen@mail.ru>, Matt Dillon <dillon@earth.backplane.com>, Wilko Bulte <wkb@freebie.xs4all.nl>, hackers@FreeBSD.ORG Subject: Re: VM: dynamic swap remapping (patch) Message-ID: <20010930150031.C284@eix.do-labs.spb.ru> In-Reply-To: <20010930044411.I59854@elvis.mu.org>; from bright@mu.org on Sun, Sep 30, 2001 at 04:44:11AM -0500 References: <20010929155941.A291@eix.do-labs.spb.ru> <20010929071024.Q59854@elvis.mu.org> <20010929141349.A80876@freebie.xs4all.nl> <200109291653.f8TGrRR37689@earth.backplane.com> <20010929232953.B341@eix.do-labs.spb.ru> <20010929175653.Z59854@elvis.mu.org> <20010930120328.A534@eix.do-labs.spb.ru> <20010930035529.G59854@elvis.mu.org> <20010930134437.B284@eix.do-labs.spb.ru> <20010930044411.I59854@elvis.mu.org>
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ehlo.
> You want to submit a patch? If not I can take a look at it,
> but it's been a bit since I've looked at the vm system.
except for sysctl, the patch is quite simple due to the fact
that histeresis is already implemented in swap_pager.c, something
like:
============================================
diff vm/swap_pager.c vm.new/swap_pager.c
217a218,219
> struct proc* p;
>
218a221,225
> /* warn all processes */
> for( p = allproc.lh_first; p != 0; p = p->p_list.le_next )
> {
> psignal(p,SIGDANGER);
> }
============================================
============================================
diff sys/signal.h sys.new/signal.h
105a106,109
> #ifndef _POSIX_SOURCE
> #define SIGDANGER 32 /* close to out-of-memory */
> #endif
>
============================================
============================================
diff kern/kern_sig.c kern.new/kern_sig.c
165a166
> SA_IGNORE /* SIGDANGER */
============================================
--
dozen @ home
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