Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <50922c87-3415-7986-c8ce-67d16754b442@kernel.org>
Date:   Tue, 6 Dec 2022 22:06:04 +0800
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101
 Thunderbird/102.5.1
Subject: Re: [PATCH v2] erofs: enable large folios for iomap mode
To:     Jingbo Xu <jefflexu@linux.alibaba.com>, xiang@kernel.org,
        linux-erofs@lists.ozlabs.org
Cc:     linux-kernel@vger.kernel.org
References: <20221130060455.44532-1-jefflexu@linux.alibaba.com>
Content-Language: en-US
From:   Chao Yu <chao@kernel.org>
In-Reply-To: <20221130060455.44532-1-jefflexu@linux.alibaba.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 2022/11/30 14:04, Jingbo Xu wrote:
> Enable large folios for iomap mode.  Then the readahead routine will
> pass down large folios containing multiple pages.
> 
> Let's enable this for non-compressed format for now, until the
> compression part supports large folios later.
> 
> When large folios supported, the iomap routine will allocate iomap_page
> for each large folio and thus we need iomap_release_folio() and
> iomap_invalidate_folio() to free iomap_page when these folios get
> recalimed or invalidated.
> 
> Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>

Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,