linux-kernel - RE: [RFC v2] genalloc:add an gen_pool_first_fit

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Message-ID: <SN1PR0301MB155080E4B7B2313969E30DAC9B8D0@SN1PR0301MB1550.namprd03.prod.outlook.com>
Date:	Tue, 28 Jul 2015 05:32:42 +0000
From:	Zhao Qiang <qiang.zhao@...escale.com>
To:	Scott Wood <scottwood@...escale.com>
CC:	"lauraa@...eaurora.org" <lauraa@...eaurora.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"olof@...om.net" <olof@...om.net>,
	"catalin.marinas@....com" <catalin.marinas@....com>,
	"Xiaobo Xie" <X.Xie@...escale.com>
Subject: RE: [RFC v2] genalloc:add an gen_pool_first_fit_align algo to
 genalloc

On Tue, 2015-07-28 at 5:21, Scott Wood wrote:
> -----Original Message-----
> From: Wood Scott-B07421
> Sent: Tuesday, July 28, 2015 5:21 AM
> To: Zhao Qiang-B45475
> Cc: lauraa@...eaurora.org; linux-kernel@...r.kernel.org; linuxppc-
> dev@...ts.ozlabs.org; akpm@...ux-foundation.org; olof@...om.net;
> catalin.marinas@....com; Xie Xiaobo-R63061
> Subject: Re: [RFC v2] genalloc:add an gen_pool_first_fit_align algo to
> genalloc
> 
> On Mon, 2015-07-27 at 17:57 +0800, Zhao Qiang wrote:
> 
> Where's the part that adds the ability to pass in data to each allocation
> call, as per the previous discussion?

You means to use gen_pool_alloc_data()?
Previously you said that the format of data is algorithm-specific,
So I think it is better to handle data in algorithm function.

If you still prefer gen_pool_alloc_data(), I will modify it.
But there still are details I want to confirm with you.
1. If use gen_pool_alloc_data(), should I pass data as a parameter?
2. Should I count align_mask in gen_pool_alloc_data(), meanwhile, add 
   a align_mask to data as a member?
3. where to define the data, in genalloc.h or caller layer?

> 
> -Scott