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Message-ID: <20080331114646.GE29105@one.firstfloor.org> Date: Mon, 31 Mar 2008 13:46:46 +0200 From: Andi Kleen <andi@...stfloor.org> To: Dave Airlie <airlied@...il.com> Cc: Andi Kleen <andi@...stfloor.org>, Dave Airlie <airlied@...hat.com>, linux-kernel@...r.kernel.org, tglx@...utronix.de, mingo@...hat.com, arjan@...ux.intel.com, thomas@...gstengraphics.com Subject: Re: [PATCH] x86: create array based interface to change page attribute On Mon, Mar 31, 2008 at 09:21:19PM +1000, Dave Airlie wrote: > On Mon, Mar 31, 2008 at 5:25 PM, Andi Kleen <andi@...stfloor.org> wrote: > > Dave Airlie <airlied@...hat.com> writes: > > > > > > +#define CPA_FLUSHTLB 1 > > > +#define CPA_ARRAY 2 > > > > I don't think CPA_ARRAY should be a separate case. Rather single > > page flushing should be an array with only a single entry. pageattr > > is already very complex, no need to make add more special cases. > > I thought about this but the current interface takes a start address > and number of pages from that point to cpa, > the array interface takes an array of page sized pages. > > I don't really think we need to generate an array in the first case > with all the pages in it.. Just put the length into the array members too. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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