linux-kernel - Re: [PATCH 1/9] iomap: Fix misplaced page flushing

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Message-ID: <20200827082408.GA11067@infradead.org>
Date:   Thu, 27 Aug 2020 09:24:08 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>
Cc:     linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/9] iomap: Fix misplaced page flushing

On Mon, Aug 24, 2020 at 03:55:02PM +0100, Matthew Wilcox (Oracle) wrote:
> diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
> index bcfc288dba3f..cffd575e57b6 100644
> --- a/fs/iomap/buffered-io.c
> +++ b/fs/iomap/buffered-io.c
> @@ -715,6 +715,7 @@ iomap_write_end_inline(struct inode *inode, struct page *page,
>  {
>  	void *addr;
>  
> +	flush_dcache_page(page);
>  	WARN_ON_ONCE(!PageUptodate(page));
>  	BUG_ON(pos + copied > PAGE_SIZE - offset_in_page(iomap->inline_data));

Please move the call down below the asserts.

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@....de>