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[24.9.64.241]) by smtp.gmail.com with ESMTPSA id l9sm1317402ilf.65.2020.09.28.15.42.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 28 Sep 2020 15:42:48 -0700 (PDT) Subject: Re: [PATCH 00/11] Introduce Simple atomic and non-atomic counters To: Kees Cook Cc: corbet@lwn.net, gregkh@linuxfoundation.org, shuah@kernel.org, rafael@kernel.org, johannes@sipsolutions.net, lenb@kernel.org, james.morse@arm.com, tony.luck@intel.com, bp@alien8.de, arve@android.com, tkjos@android.com, maco@android.com, joel@joelfernandes.org, christian@brauner.io, hridya@google.com, surenb@google.com, minyard@acm.org, arnd@arndb.de, mchehab@kernel.org, rric@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-acpi@vger.kernel.org, devel@driverdev.osuosl.org, openipmi-developer@lists.sourceforge.net, linux-edac@vger.kernel.org, Shuah Khan References: <202009260920.DC9C2743@keescook> From: Shuah Khan Message-ID: <1aeccb4f-df7e-60bf-1d70-dfcff5bb6f87@linuxfoundation.org> Date: Mon, 28 Sep 2020 16:42:46 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <202009260920.DC9C2743@keescook> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/26/20 10:22 AM, Kees Cook wrote: > On Fri, Sep 25, 2020 at 05:47:14PM -0600, Shuah Khan wrote: >> This patch series is a result of discussion at the refcount_t BOF >> the Linux Plumbers Conference. In this discussion, we identified >> a need for looking closely and investigating atomic_t usages in >> the kernel when it is used strictly as a counter without it >> controlling object lifetimes and state changes. > > BTW, I realized the KSPP issue tracker hadn't broken this task out of > the refcount_t conversion issue[1] into a separate issue, so I've created > it now: https://github.com/KSPP/linux/issues/106 > Cool. Thanks. -- Shuah