linux-kernel - Re: [PATCH V2] x86/mm/pat: Do a small optimization and fix in reserve

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Message-ID: <alpine.DEB.2.11.1507211722280.18576@nanos>
Date:	Tue, 21 Jul 2015 17:23:16 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Pan Xinhui <xinhuix.pan@...el.com>
cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	mingo@...hat.com, hpa@...or.com, x86@...nel.org, bp@...e.de,
	toshi.kani@...com, jgross@...e.com, mcgrof@...e.com,
	"mnipxh@....com" <mnipxh@....com>,
	"yanmin_zhang@...ux.intel.com" <yanmin_zhang@...ux.intel.com>
Subject: Re: [PATCH V2] x86/mm/pat: Do a small optimization and fix in
 reserve_memtype

On Tue, 21 Jul 2015, Pan Xinhui wrote:
> So *ret_type might be set to found_type(match->type),
> 
> The call train is deep, it took me long time to review them.
> As actual_type != new->type is possible, we need save new->type to actual_type.

Fair enough. But that wants to have a comment in the code as any
casual reader will trip over this.

Thanks,

	tglx
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