From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 CE81F291C18 for ; Fri, 15 Aug 2025 16:04:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755273855; cv=none; b=RlkLY0IlNmxXsVAwjur3zxTE7QUG9UnhgitMBMUFlKXMm8c1VnmtcN0l6Q25nqzaQ1kbYA/mGNanGzP62ofREhQdITFfNpT1K4WerUgCElaI+/GyS4LFnDmFEM9RU0EXyXGAc5SFBLkmmdjnIoUss5xdb8ituUu23tWYwR/kmZ4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755273855; c=relaxed/simple; bh=lKMogr4ajRlJk619aEelHGKAjLdqaDJr87j1olYJqJc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=PfcEiZICJVGejJcP8VexghzbWQcPZXqShM+5uWUh1V+Usxw08bfGl8YC0S/OFJiqfLF4hHPAaBVBF88IXcsgEBQaLr60bCcXbWTQsm9M/SEdo9okVKuFN8px9w/Hc/u2+QFnZeyqHf3DMAQUYeSsx6fkGTGV1Wod0R/roqFzDEY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=fynFi1g0; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="fynFi1g0" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1755273852; 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=lKMogr4ajRlJk619aEelHGKAjLdqaDJr87j1olYJqJc=; b=fynFi1g062tkUEWSQKesK5nQ1kbhyDxlqoezoaXbUeUDP6dRCeQ/qK8cYReUecGprMqsuD jhBK4pPfF17Y1VBDTz7N5DWIK59CcGYEW8KEIn+diPsKkkPAEeKDDbiNCFo8nXtI3w+I3f +N6jMWvdHOZoo8U97v3s0netNvuC/KQ= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-140-zliQYkXHOyqrvZrgwfCzhA-1; Fri, 15 Aug 2025 12:04:09 -0400 X-MC-Unique: zliQYkXHOyqrvZrgwfCzhA-1 X-Mimecast-MFC-AGG-ID: zliQYkXHOyqrvZrgwfCzhA_1755273847 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 60F3518002CF; Fri, 15 Aug 2025 16:04:07 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.44.33.47]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with SMTP id A1B52180035C; Fri, 15 Aug 2025 16:04:02 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Fri, 15 Aug 2025 18:02:50 +0200 (CEST) Date: Fri, 15 Aug 2025 18:02:44 +0200 From: Oleg Nesterov To: Dave Hansen Cc: Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Ingo Molnar , Jens Axboe , Peter Zijlstra , Rick Edgecombe , Sohil Mehta , Thomas Gleixner , linux-kernel@vger.kernel.org, x86@kernel.org, Mark Brown Subject: Re: [PATCH 0/6] x86/fpu: don't abuse x86_task_fpu(PF_USER_WORKER) in .regset_get() paths Message-ID: <20250815160244.GI11549@redhat.com> References: <20250814101340.GA17288@redhat.com> <20250815155220.GA3702@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 On 08/15, Dave Hansen wrote: > > On 8/15/25 08:52, Oleg Nesterov wrote: > > Dave, Sohil, what do you think? > > > > OK, it seems that 5/6 (and thus 6/6) needs more discussion, but what > > about 1-3 for the start? > They kinda need fleshed out changelogs first, don't you think? > Especially 1/6. It also needs an actual cover letter explaining what > it's trying to do and the larger context. Ideally, it's self-contained > and as opposed to links to previous discussions. I agree about the cover letter, but what else do you think the changelog in 1/6 could say? ;) OK, I'll try to improve and resend. Oleg.