linux-kernel - Re: [PATCH v2] erofs: enable large folios for iomap mode

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Message-ID: <50922c87-3415-7986-c8ce-67d16754b442@kernel.org>
Date:   Tue, 6 Dec 2022 22:06:04 +0800
From:   Chao Yu <chao@...nel.org>
To:     Jingbo Xu <jefflexu@...ux.alibaba.com>, xiang@...nel.org,
        linux-erofs@...ts.ozlabs.org
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] erofs: enable large folios for iomap mode

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@...ux.alibaba.com>

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

Thanks,