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Tue, 07 Jul 2020 11:39:29 -0700 (PDT) Subject: Re: [RFC v3 1/2] fs: Add IOCB_NOIO flag for generic_file_read_iter To: Andreas Gruenbacher , Linus Torvalds Cc: Matthew Wilcox , Dave Chinner , 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 Message-ID: Date: Tue, 7 Jul 2020 12:39:29 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <20200707144457.1603400-2-agruenba@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: AE3A310045BF9 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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