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Subject: Re: [PATCH v11 02/22] arc: mm: Add p?d_leaf() definitions
To:     Steven Price <steven.price@arm.com>, linux-mm@kvack.org
Cc:     Andy Lutomirski <luto@kernel.org>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        Arnd Bergmann <arnd@arndb.de>, Borislav Petkov <bp@alien8.de>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Ingo Molnar <mingo@redhat.com>,
        James Morse <james.morse@arm.com>,
        =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= <jglisse@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Will Deacon <will@kernel.org>, x86@kernel.org,
        "H. Peter Anvin" <hpa@zytor.com>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Mark Rutland <Mark.Rutland@arm.com>,
        "Liang, Kan" <kan.liang@linux.intel.com>,
        Andrew Morton <akpm@linux-foundation.org>
References: <20191007153822.16518-1-steven.price@arm.com>
 <20191007153822.16518-3-steven.price@arm.com>
From:   Vineet Gupta <vineetg76@gmail.com>
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Message-ID: <6c09d4df-ed4a-21ed-6f39-74b745650430@gmail.com>
Date:   Tue, 8 Oct 2019 13:19:28 -0700
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Sender: linux-kernel-owner@vger.kernel.org
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On 10/7/19 8:38 AM, Steven Price wrote:
> walk_page_range() is going to be allowed to walk page tables other than
> those of user space. For this it needs to know when it has reached a
> 'leaf' entry in the page tables. This information will be provided by the
> p?d_leaf() functions/macros.
> 
> For arc, we only have two levels, so only pmd_leaf() is needed.
> 
> CC: Vineet Gupta <vgupta@synopsys.com>
> CC: linux-snps-arc@lists.infradead.org
> Signed-off-by: Steven Price <steven.price@arm.com>

Acked-by: Vineet Gupta <vgupta@synopsys.com>

-Vineet