Re: [PATCH v2 01/28] csky,sparc: Declare flush_dcache_folio()

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To: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: Re: [PATCH v2 01/28] csky,sparc: Declare flush_dcache_folio()
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue, 9 Nov 2021 00:36:57 -0800
Cc: "Darrick J . Wong " <djwong@xxxxxxxxxx>, linux-xfs@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, Jens Axboe <axboe@xxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>
In-reply-to: <20211108040551.1942823-2-willy@infradead.org>

On Mon, Nov 08, 2021 at 04:05:24AM +0000, Matthew Wilcox (Oracle) wrote:
> These architectures do not include asm-generic/cacheflush.h so need
> to declare it themselves.

In mainline mm/util.c implements flush_dcache_folio unless
ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO is set.  So I think you need to
define that for csky and sparc.

Follow-Ups:
- Re: [PATCH v2 01/28] csky,sparc: Declare flush_dcache_folio()
  - From: Matthew Wilcox

References:
- [PATCH v2 00/28] iomap/xfs folio patches
  - From: Matthew Wilcox (Oracle)
- [PATCH v2 01/28] csky,sparc: Declare flush_dcache_folio()
  - From: Matthew Wilcox (Oracle)

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