From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 93A0915FD15 for ; Wed, 31 Jul 2024 21:47:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722462458; cv=none; b=F9S6/2VlgJK0yi4w3QcuTRM9oiaObyapIYXdR922yur/XrOWlFpYw5i8Sn+URd/KOccWIlwbzF2kjckkflG7mbQDvZcqA0DZVLHEfNuf3lRDgo7jCuMnL2uPwVGTywkalSCecqbolKr0Awh6UOQnCEasVJfV1v4DhnjgVmoonYU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722462458; c=relaxed/simple; bh=WTfJDyIHdjpdh/1FJdf11JhrNG82ktnY3L640+HLdbE=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=h4YvQ642aeA3jfishtLj872fc4V9Xk/sZ2Un3oYpMqZZ4IKYs273Q025dkGfg+cYPccQyv1dphN+DXU6BuWBOKK+pxiKA3/a99OqEogCfSCy8EFrkJEatYPxXy2fDDENp+rXCl4sjtqTeFAjpEYVayCAPPrZWuvKaqpzz/HzDM4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=UISq3fvJ; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=gSGJ2/MJ; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="UISq3fvJ"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="gSGJ2/MJ" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1722462454; 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=0Kx/dDVdE7n0xHVF6NmMI/MDLy57D1/3ZpnGl3/UrP0=; b=UISq3fvJElYAX502Wf/Yhbkec2MgGbuxLllPFAHVPzuht2qO/7b4nKwPEWfyEe4zeBw2Al 0syU1u66zeU5Reqod1iN4HkGtkZ/6Zao25CPApTKTqyTdklkBJB5GsQjf1xjEqk+23hXoa q0wNB79oZZ0INwKUNLRXgQTSBmp1llpO/jvS0rAe8NEatBtrs4qKGlzUQYH0XDkV/G5UVF XhdhD0DzqH0ZOdq4+h7qle7GG1sPygHUpjHQ028oUtiJr/zSdhAYQ2aRGiu1FPZUPuG5ir uzFzOc0vAQshvC71RtdrxVC/Iah+tQJJIAHyfsSNYcC0Bu1kKx8juw/X4TlFlg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1722462454; 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=0Kx/dDVdE7n0xHVF6NmMI/MDLy57D1/3ZpnGl3/UrP0=; b=gSGJ2/MJajEPDHtTL2a8N8RG/inRWEGVVv2duSae2Jm8YvAtxCSkCUOq3h0PHbpOlm9/hJ zv3xVngF04zr71Aw== To: Linus Torvalds , Peter Zijlstra Cc: Guenter Roeck , Jens Axboe , Andy Lutomirski , Ingo Molnar , Peter Anvin , Linux Kernel Mailing List , the arch/x86 maintainers Subject: Re: Linux 6.11-rc1 In-Reply-To: References: <20240731122002.GE33588@noisy.programming.kicks-ass.net> <87mslx67dm.ffs@tglx> <20240731155551.GF33588@noisy.programming.kicks-ass.net> <20240731163105.GG33588@noisy.programming.kicks-ass.net> <20240731165108.GH33588@noisy.programming.kicks-ass.net> <87bk2d5v83.ffs@tglx> <20240731212007.GW26599@noisy.programming.kicks-ass.net> <20240731212624.GZ40213@noisy.programming.kicks-ass.net> Date: Wed, 31 Jul 2024 23:47:34 +0200 Message-ID: <87mslx44jt.ffs@tglx> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Wed, Jul 31 2024 at 14:41, Linus Torvalds wrote: > On Wed, 31 Jul 2024 at 14:26, Peter Zijlstra wrote: >> >> x86_64 has everything PMD aligned. It *should* never encounter a PTE. > > Ahh. I thought it only aligned the beginning, but yeah, I see that > ALIGN_ENTRY_TEXT_END is also PMD_SIZE aligned. > > That smells of wasted memory, but I guess the TLB advantage is worth it. It definitely is. Thanks, tglx