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Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1r0ljw-0026LN-Cg; Wed, 08 Nov 2023 16:49:17 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id B7CBF30049D; Wed, 8 Nov 2023 17:49:16 +0100 (CET) Date: Wed, 8 Nov 2023 17:49:16 +0100 From: Peter Zijlstra To: Steven Rostedt Cc: Thomas Gleixner , Ankur Arora , linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, paulmck@kernel.org, linux-mm@kvack.org, x86@kernel.org, akpm@linux-foundation.org, luto@kernel.org, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, willy@infradead.org, mgorman@suse.de, jon.grimm@amd.com, bharata@amd.com, raghavendra.kt@amd.com, boris.ostrovsky@oracle.com, konrad.wilk@oracle.com, jgross@suse.com, andrew.cooper3@citrix.com, mingo@kernel.org, bristot@kernel.org, mathieu.desnoyers@efficios.com, geert@linux-m68k.org, glaubitz@physik.fu-berlin.de, anton.ivanov@cambridgegreys.com, mattst88@gmail.com, krypton@ulrich-teichert.org, David.Laight@aculab.com, richard@nod.at, mjguzik@gmail.com Subject: Re: [RFC PATCH 00/86] Make the kernel preemptible Message-ID: <20231108164916.GR8262@noisy.programming.kicks-ass.net> References: <20231107215742.363031-1-ankur.a.arora@oracle.com> <20231108085156.GD8262@noisy.programming.kicks-ass.net> <87bkc4lfxp.fsf@oracle.com> <20231108101330.GK3818@noisy.programming.kicks-ass.net> <877cmsgsrg.ffs@tglx> <20231108112227.62f0c5a8@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231108112227.62f0c5a8@gandalf.local.home> X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 6342380011 X-Stat-Signature: ymhb85do1trgayyi8iersyso1knfng1k X-Rspam-User: X-HE-Tag: 1699462177-890787 X-HE-Meta: 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 pvtceO7k RbH0KR0+CK6WrZGvagn+pDJA+N6cTJ2+P7eE2i7QoSGj0lozARJupUfejhGMXxkRKqdqXQre9qZdYN1V/+yhOdIOaRkMtbTHaN+xliSzeHeE37LL9mpR86Qb5ItPrjfNMwCmrVSNVCbQIjQbPC20SXER1TneaMjz+Ka+GnyKBMWSpIPaRtk6rWQzhFbaEvIpS93/R 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: List-Subscribe: List-Unsubscribe: On Wed, Nov 08, 2023 at 11:22:27AM -0500, Steven Rostedt wrote: > Peter, how can you say we can get rid of cond_resched() in NONE when you Because that would fix none to actually be none. Who cares. > > Look at my PoC: https://lore.kernel.org/lkml/87jzshhexi.ffs@tglx/ > > And I've been saying that many times already ;-) Why should I look at random patches on the interweb to make sense of these patches here? That just underlines these here patches are not making sense.