Date:   Fri, 3 Dec 2021 11:11:20 -0800
From:   Lucas De Marchi <lucas.demarchi@intel.com>
To:     Dave Hansen <dave.hansen@intel.com>
Cc:     Joerg Roedel <joro@8bytes.org>, x86@kernel.org,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>, hpa@zytor.com,
        Andy Lutomirski <luto@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Tom Lendacky <thomas.lendacky@amd.com>,
        Brijesh Singh <brijesh.singh@amd.com>,
        linux-kernel@vger.kernel.org, Joerg Roedel <jroedel@suse.de>
Subject: Re: [PATCH] x86/mm: Fix PAGE_KERNEL_IO removal breakage
Message-ID: <20211203191120.taonx5pwz4w3kmmm@ldmartin-desk2>
References: <20211202144646.23186-1-joro@8bytes.org>
 <20211202155452.jh4qnvpx52r3od67@ldmartin-desk2>
 <20211203002513.fa43j6uvsn2ho4mm@ldmartin-desk2>
 <9148a579-2843-96f8-9b64-a3adb8fcb411@intel.com>
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On Fri, Dec 03, 2021 at 09:35:47AM -0800, Dave Hansen wrote:
>On 12/2/21 4:25 PM, Lucas De Marchi wrote:
>> About the first patch,
>> 6b2a2138cf36 ("drm/i915/gem: Stop using PAGE_KERNEL_IO"),
>> I didn't notice any regression on the i915
>> side though. Is it safe to keep it? Otherwise we are probably better
>> off reverting everything.
>
>I'm just going to drop both of those for now:
>
>	27dff0f58bde ("x86/mm: Nuke PAGE_KERNEL_IO")
>	6b2a2138cf36 ("drm/i915/gem: Stop using PAGE_KERNEL_IO")
>
>If you work out a fix, please integrate the patch from Joerg and resubmit.

yeah, that seems the best approach here.

thanks
Lucas De Marchi