From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <df3884533f4661b9f08516268ce94490@gmx.de>
Date: Wed, 29 Feb 2012 20:50:35 +0100
From: cinap_lenrek@gmx.de
To: 9fans@9fans.net
In-Reply-To: <b5ad0b54f863149fd18cdbeffbddc852@hamnavoe.com>
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Subject: Re: [9fans] duppage
Topicbox-Message-UUID: 65d72284-ead7-11e9-9d60-3106f5b1d025

fixfault() in fault.c is the only user of duppage().

in 9front, i changed the return type of duppage to void.

fixfault() now looks like this:

		...
		if(lkp->image == &swapimage)
			ref = lkp->ref + swapcount(lkp->daddr);
		else
			ref = lkp->ref;
		if(ref == 1 && lkp->image){
			/* save a copy of the original for the image cache */
			duppage(lkp);
			ref = lkp->ref;
		}
		unlock(lkp);
		if(ref > 1){
			new = newpage(0, &s, addr);
			if(s == 0)
				return -1;
			*pg = new;
			copypage(lkp, *pg);
			putpage(lkp);
		}
		...

--
cinap