From: Gao Xiang <hsiangkao@linux.alibaba.com>
To: Barry Song <21cnbao@gmail.com>,
xiang@kernel.org, chao@kernel.org, linux-erofs@lists.ozlabs.org
Cc: huyue2@coolpad.com, jefflexu@linux.alibaba.com,
dhavale@google.com, linux-kernel@vger.kernel.org,
Barry Song <v-songbaohua@oppo.com>
Subject: Re: [PATCH RFC] fs: erofs: support PG_mappedtodisk flag for folios with zero-filled
Date: Thu, 17 Oct 2024 16:00:14 +0800 [thread overview]
Message-ID: <0fa18bcf-9af6-4c99-ad57-613fa38ff741@linux.alibaba.com> (raw)
In-Reply-To: <ca27aa75-40a4-4c82-8d84-7968b2ab89d4@linux.alibaba.com>
On 2024/10/17 15:58, Gao Xiang wrote:
> Hi Barry,
>
> On 2024/10/17 15:43, Barry Song wrote:
>> From: Barry Song <v-songbaohua@oppo.com>
>>
>> When a folio has never been zero-filled, mark it as mappedtodisk
>> to allow other software components to recognize and utilize the
>> flag.
>>
>> Signed-off-by: Barry Song <v-songbaohua@oppo.com>
>
> Thanks for this!
>
> It looks good to me as an improvement as long as PG_mappedtodisk
> is long-term lived and useful to users.
>
> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
BTW, I wonder if iomap supports this since uncompressed EROFS
relies on iomap paths...
Thanks,
Gao Xiang
next prev parent reply other threads:[~2024-10-17 8:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-17 7:43 Barry Song
2024-10-17 7:58 ` Gao Xiang
2024-10-17 8:00 ` Gao Xiang [this message]
2024-10-17 8:09 ` Barry Song
2024-10-17 8:16 ` Gao Xiang
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