linux-kernel - Re: [PATCH v4 2/3] fs: Convert kiocb rw

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Date:   Fri, 18 May 2018 09:05:12 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     adam.manzanares@....com
Cc:     viro@...iv.linux.org.uk, linux-fsdevel@...r.kernel.org,
        axboe@...nel.dk, bcrl@...ck.org, mingo@...nel.org,
        peterz@...radead.org, pombredanne@...b.com,
        gregkh@...uxfoundation.org, bigeasy@...utronix.de,
        rgoldwyn@...e.com, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-aio@...ck.org,
        linux-api@...r.kernel.org
Subject: Re: [PATCH v4 2/3] fs: Convert kiocb rw_hint from enum to u16

> +/* ki_hint changed from enum to u16, make sure rw_hint fits into u16 */

I don't think this comment is very useful.

> +static inline u16 ki_hint_valid(enum rw_hint hint)

I'd call this ki_hint_validate.

> +{
> +	if (hint > MAX_KI_HINT)
> +		return 0;
> +
> +	return hint;

Nit: kill the empty line.