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Date:   Tue, 24 Nov 2020 14:19:41 +0000
From:   Matthew Wilcox <willy@infradead.org>
To:     ira.weiny@intel.com
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Dave Hansen <dave.hansen@intel.com>,
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        Dan Williams <dan.j.williams@intel.com>,
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        Thomas Gleixner <tglx@linutronix.de>,
        Luis Chamberlain <mcgrof@kernel.org>,
        Patrik Jakobsson <patrik.r.jakobsson@gmail.com>,
        Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        David Howells <dhowells@redhat.com>, Chris Mason <clm@fb.com>,
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        Jaegeuk Kim <jaegeuk@kernel.org>, Chao Yu <yuchao0@huawei.com>,
        Nicolas Pitre <nico@fluxnic.net>,
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        Brian King <brking@us.ibm.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Alexei Starovoitov <ast@kernel.org>,
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        =?iso-8859-1?B?Suly9G1l?= Glisse <jglisse@redhat.com>,
        Kirti Wankhede <kwankhede@nvidia.com>,
        linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH 01/17] mm/highmem: Lift memcpy_[to|from]_page and
 memset_page to core
Message-ID: <20201124141941.GB4327@casper.infradead.org>
References: <20201124060755.1405602-1-ira.weiny@intel.com>
 <20201124060755.1405602-2-ira.weiny@intel.com>
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On Mon, Nov 23, 2020 at 10:07:39PM -0800, ira.weiny@intel.com wrote:
> +static inline void memzero_page(struct page *page, size_t offset, size_t len)
> +{
> +	memset_page(page, 0, offset, len);
> +}

This is a less-capable zero_user_segments().