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Subject: Re: [RFC v3 1/2] fs: Add IOCB_NOIO flag for generic_file_read_iter
To:     Andreas Gruenbacher <agruenba@redhat.com>,
        Linus Torvalds <torvalds@linux-foundation.org>
Cc:     Matthew Wilcox <willy@infradead.org>,
        Dave Chinner <david@fromorbit.com>,
        linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
References: <20200707144457.1603400-1-agruenba@redhat.com>
 <20200707144457.1603400-2-agruenba@redhat.com>
From:   Jens Axboe <axboe@kernel.dk>
Message-ID: <e49c5a2b-866f-14ae-9665-284726815bbd@kernel.dk>
Date:   Tue, 7 Jul 2020 12:39:29 -0600
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On 7/7/20 8:44 AM, Andreas Gruenbacher wrote:
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index 3f881a892ea7..1ab2ea19e883 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -315,6 +315,7 @@ enum rw_hint {
>  #define IOCB_SYNC		(1 << 5)
>  #define IOCB_WRITE		(1 << 6)
>  #define IOCB_NOWAIT		(1 << 7)
> +#define IOCB_NOIO		(1 << 8)

Just to make this even more trivial in terms of merge conflicts, could
you do 1 << 9 instead?

-- 
Jens Axboe