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Fri, 21 Jul 2023 11:50:16 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.9.0-alpha0-531-gfdfa13a06d-fm-20230703.001-gfdfa13a0 Mime-Version: 1.0 Message-Id: <59ba1179-d166-4bae-b7b6-c1084471192e@app.fastmail.com> In-Reply-To: <20230721102237.268073801@infradead.org> References: <20230721102237.268073801@infradead.org> Date: Fri, 21 Jul 2023 17:49:56 +0200 From: "Arnd Bergmann" To: "Peter Zijlstra" , "Thomas Gleixner" , "Jens Axboe" Cc: linux-kernel@vger.kernel.org, "Ingo Molnar" , "Darren Hart" , dave@stgolabs.net, andrealmeid@igalia.com, "Andrew Morton" , urezki@gmail.com, "Christoph Hellwig" , "Lorenzo Stoakes" , linux-api@vger.kernel.org, linux-mm@kvack.org, Linux-Arch , malteskarupke@web.de Subject: Re: [PATCH v1 00/14] futex: More futex2 bits Content-Type: text/plain X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 671F640015 X-Stat-Signature: su3nc7xi5eigunnbf786qctarxfmkdc4 X-HE-Tag: 1689954620-533146 X-HE-Meta: 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 UU+F64Aa Di2HjsMJIbwrFzinYxA+xZ974ylcfu1tOrfyyr02xlaTREQsKpOyMnMUY/QYD5dlQE7if2O090SxFSn7a3/zEF7Z/7yI8ehPG44lvS1M1FVn4YcFJVi7DM/AG3VNCrVTEc6pWn+lgrNVjreI4cBCurenP48tC/XFaWJ9yUqNHmqSKvdU= 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 Fri, Jul 21, 2023, at 12:22, Peter Zijlstra wrote: > Hi, > > New version of the futex2 patches. These are actually tested and appear to work > as expected. > > I'm hoping to get at least the first 3 patches merged such that Jens can base > the io_uring futex patches on them. > > > Changes since v0: > - switched over to 'unsigned long' for values (Arnd) > - unshare vmalloc_huge() (Willy) > - added wait/requeue syscalls > - fixed NUMA to support sparse nodemask > - added FUTEX2_n vs FUTEX2_NUMA check to ensure > the node_id fits in the futex > - added selftests > - fixed a ton of silly bugs The changes look good to me, and the ABI should be fine without special compat handler now. I sent a couple of minor comments, but nothing important. Arnd