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[209.85.208.179]) by smtp.gmail.com with ESMTPSA id j2sm6793156ljb.98.2020.08.19.11.38.08 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 19 Aug 2020 11:38:08 -0700 (PDT) Received: by mail-lj1-f179.google.com with SMTP id m22so26479330ljj.5 for ; Wed, 19 Aug 2020 11:38:08 -0700 (PDT) X-Received: by 2002:a2e:545:: with SMTP id 66mr13526311ljf.285.1597861941474; Wed, 19 Aug 2020 11:32:21 -0700 (PDT) MIME-Version: 1.0 References: <87ft8l6ic3.fsf@x220.int.ebiederm.org> <20200817220425.9389-9-ebiederm@xmission.com> <875z9g7oln.fsf@x220.int.ebiederm.org> <20200818110556.q5i5quflrcljv4wa@wittgenstein> <87pn7m22kn.fsf@x220.int.ebiederm.org> In-Reply-To: <87pn7m22kn.fsf@x220.int.ebiederm.org> From: Linus Torvalds Date: Wed, 19 Aug 2020 11:32:05 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH 09/17] file: Implement fnext_task To: "Eric W. Biederman" Cc: Christian Brauner , Linux Kernel Mailing List , "" , criu@openvz.org, bpf , Alexander Viro , Oleg Nesterov , Cyrill Gorcunov , Jann Horn , Kees Cook , =?UTF-8?Q?Daniel_P=2E_Berrang=C3=A9?= , Jeff Layton , Miklos Szeredi , Matthew Wilcox , "J. Bruce Fields" , Matthew Wilcox , Trond Myklebust , Chris Wright , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , Andrii Nakryiko , John Fastabend , KP Singh Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 19, 2020 at 6:25 AM Eric W. Biederman wrote: > > So I sat down and played with it and here is what I wound up with is: > > __fcheck_files -> files_lookup_fd_raw > fcheck_files -> files_lookup_fd_locked > fcheck_files -> files_lookup_fd_rcu > fcheck -> lookup_fd_rcu > ... > fcheck_task -> task_lookup_fd_fcu > fnext_task -> task_lookup_next_fd_rcu This certainly looks fine to me. No confusion about what it does. So Ack. Linus