Re: [PATCH 04/14] bdi: initialize ->ra_pages in bdi_init

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Hello Chrstoph,

On Mon, Jul 20, 2020 at 9:53 AM Christoph Hellwig <hch@xxxxxx> wrote:
>
> Set up a readahead size by default.  This changes behavior for mtd,
> ubifs, and vboxsf to actually enabled readahead, the lack of which
> very much looks like an oversight.

UBIFS doesn't enable readahead on purpose, please see:
http://www.linux-mtd.infradead.org/doc/ubifs.html#L_readahead

-- 
Thanks,
//richard

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