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Re: [Qemu-block] [PATCH RFC for-2.6 1/3] HBitmap: Introduce "meta" bitma

From: Fam Zheng
Subject: Re: [Qemu-block] [PATCH RFC for-2.6 1/3] HBitmap: Introduce "meta" bitmap to track bit changes
Date: Fri, 22 Jan 2016 11:10:09 +0800
User-agent: Mutt/1.5.21 (2010-09-15)

On Thu, 01/21 13:58, Vladimir Sementsov-Ogievskiy wrote:
> >>I thing now, that the same may be accomplished for BdrvDirtyBitmap,
> >>all we need is return "changed" status from hb_set_between and then
> >>from hbitmap_set.
> >That is true, but it makes further optimizing to *really* only set the 
> >toggled
> >meta bits much more difficult (i.e. when only a few bits between start and 
> >last
> >are changed).
> Are you going add some optimization in following versions (v3 ?) or
> as separate series, or other plan?

I aim at a seperate series for that.


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