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d=linutronix.de; s=2020e; t=1661349456; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=JpalXE2XjDnPtjQgOFh+FhkS2pbYMvN3W0ynIcjZ+BY=; b=nTVcJDUZxuy80SX/8yJGoC4OngRrITb4o8K9YIBwGn7nKZu+AvO8QDzoZYlZK2jmdmeqkO R3OzegOqJIoLOJAQ== From: Sebastian Andrzej Siewior To: Vlastimil Babka Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , Peter Zijlstra , Steven Rostedt , Linus Torvalds , Matthew Wilcox , Andrew Morton , Christoph Lameter , David Rientjes , Joonsoo Kim , Pekka Enberg , linux-mm@kvack.org Subject: Re: [PATCH 1/9] slub: Make PREEMPT_RT support less convoluted Message-ID: References: <20220817162703.728679-1-bigeasy@linutronix.de> <20220817162703.728679-2-bigeasy@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1661349458; a=rsa-sha256; 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dkim=pass header.d=linutronix.de header.s=2020 header.b="Y0/dLE+S"; dkim=pass header.d=linutronix.de header.s=2020e header.b=nTVcJDUZ; dmarc=pass (policy=none) header.from=linutronix.de; spf=pass (imf12.hostedemail.com: domain of bigeasy@linutronix.de designates 193.142.43.55 as permitted sender) smtp.mailfrom=bigeasy@linutronix.de X-Stat-Signature: 4nrqu36zfafkjmh3attnond6uepq473f X-Rspamd-Server: rspam05 X-HE-Tag: 1661349458-745162 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 2022-08-24 15:54:54 [+0200], Vlastimil Babka wrote: > Yeah, realizing that this is true on RT led to the recent patch I > referenced. Initially when converting SLUB to RT last year I didn't realize > this detail, and instead replaced the irq disabling done (only on !RT) by > e.g. local_lock_irqsave with the manual local_irq_save(). Ah, okay. Let me get to the other series then ;) Sebastian