linux-kernel - Re: [PATCH v7u1 26/31] x86: Don't enable swiotlb if there is not enough ram for it

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Message-ID: <CAE9FiQXzdnunJF_3gbpQO-uBX37-9h3pzo=6ta97bANioz=d3A@mail.gmail.com>
Date:	Thu, 10 Jan 2013 15:55:46 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Shuah Khan <shuahkhan@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Borislav Petkov <bp@...en8.de>, Jan Kiszka <jan.kiszka@....de>,
	Jason Wessel <jason.wessel@...driver.com>,
	linux-kernel@...r.kernel.org, Joerg Roedel <joro@...tes.org>
Subject: Re: [PATCH v7u1 26/31] x86: Don't enable swiotlb if there is not
 enough ram for it

On Thu, Jan 10, 2013 at 3:15 PM, Eric W. Biederman
<ebiederm@...ssion.com> wrote:
> My biggest question was really why you didn't set no_iotlb
> sooner.  But shrug I didn't see any real issue with the code except
> for it being silly.

how about attached one?

removed the swiotlb_init_with_default_size(), and logic should be more clean.

Thanks

Yinghai

Download attachment "swiotlb.patch" of type "application/octet-stream" (6465 bytes)