Re: [PATCH v2 01/28] csky,sparc: Declare flush_dcache_folio()
From: Christoph Hellwig <hch@infradead.org>
Date: 2021-11-09 08:37:06
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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.