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From:   =?UTF-8?Q?Andreas_Gr=C3=BCnbacher?= <andreas.gruenbacher@gmail.com>
Date:   Tue, 7 Jul 2020 23:42:22 +0200
Message-ID: <CAHpGcM+mpg9vCT=jGYq0r2aezBY921O06D5aAxLozx8RDJ63-g@mail.gmail.com>
Subject: Re: [RFC v3 1/2] fs: Add IOCB_NOIO flag for generic_file_read_iter
To:     Jens Axboe <axboe@kernel.dk>
Cc:     Andreas Gruenbacher <agruenba@redhat.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Matthew Wilcox <willy@infradead.org>,
        Dave Chinner <david@fromorbit.com>,
        Linux FS-devel Mailing List <linux-fsdevel@vger.kernel.org>,
        Linux-MM <linux-mm@kvack.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Am Di., 7. Juli 2020 um 20:40 Uhr schrieb Jens Axboe <axboe@kernel.dk>:
> 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?

Sure.

Andreas