From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qt1-f178.google.com (mail-qt1-f178.google.com [209.85.160.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BA6C5357D12 for ; Mon, 13 Jul 2026 19:41:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783971695; cv=none; b=IUSb9deLs0xeFGNqfJf0pYRA6wfDEkn+GJpwcusc2ghExBmlWmSLiN+EaHHSTgE3va4QwH4e6zGSa87V2uhvqBVssHaaT9ALrzWyysILpPmifutkX2DDhjbGWtc+v318s4lZoHKHtmmUxd1S0qP1+nUkdDHVmUL6jmYXZzGPeBE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783971695; c=relaxed/simple; bh=B2Rb2Qu3H6K9h4z3M1wOOTBejPY5tvykheBX1AXjDsU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=b8iHL1xFfay0CT79sMOrSxfG5ECYZqizJwmvTN32nmmFiTCKoxYSI/8ej+iI9LAwNHFJCQ3eOTowT6Rib+EsF3R5lgx58vOri1gtNHgX1N00bcmGAoVHvHfUN9em4a2Mn8XisLP97qL54PD+nUo1DRbO5buMiL1jGYJiQsdbj9w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ziepe.ca; spf=pass smtp.mailfrom=ziepe.ca; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b=h19Ux+5R; arc=none smtp.client-ip=209.85.160.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ziepe.ca Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ziepe.ca Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b="h19Ux+5R" Received: by mail-qt1-f178.google.com with SMTP id d75a77b69052e-51c29b46382so23068211cf.3 for ; Mon, 13 Jul 2026 12:41:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; t=1783971693; x=1784576493; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=RaFiCRG6TDd5hbIwyaOKkhGT65gZ81YsG2fbaxJfaHI=; b=h19Ux+5RrIt2Qj37Ey0Ugc8JC3GtEyjgueBFjgbu1ab57PiPF016jCyccKLgUITV5L yaOWYx1pB+y76f9O3vSw/VFXyBbrRXiOLnyoGtDOe1QUqUChHHJwxQKxFujCa4OZMrON sgwbwCC2Y52Z5VHMQnGY2+Q2RWfIu9G71LUIctHzyYuMoGMuXZpI0bEmN5jvoD2XuKDq UDYx2BgVFFJC7Q1XwlLgvZprnu/vfsAjp/2FDQlg3I2SNYZiSEJHhuNIG80I0NqItGbT CPDd05RlVlHU14ySmBtCwUlDjhphdwgr/BaiB04YDvIpbhmVrcHRlNW+un4hSyqoBS9a MQkQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783971693; x=1784576493; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=RaFiCRG6TDd5hbIwyaOKkhGT65gZ81YsG2fbaxJfaHI=; b=sklDQB+N4K//1OpSLn7mEqqFUvuxaC4+AeAqZvC9wT44ZJHWZHKpLhMJCSshOzYfZT +O37dwdBGrWxlYDxCL3NXfJeUdcqocmGmufmR4pOw0o/ityqaN2g7qdZOVVAnQx1PYop QgPScU0kJ80rowRqlllcbeAff+SBaXeUqJ0GBpmWABs2cMJhhAMjvvR87j/vW1YrTHrz 9Jz8gcmm5RjpO2Ciu1VKSKN6n+KR2Cfe9rsGXIf9Kb+4hAS7p8Go3UWXXStl1kmxu4XQ ZWJ0Xxu/dWqBQNRrqLlmSlz50O0RBb9RlxEcUD+rHtJs3G+Gv25bBd4+cL+kIoFMBzoe Q8Iw== X-Forwarded-Encrypted: i=1; AHgh+RrRLZIRVXqwuA5Xpp/xSc6stC1xgcEzS1Y/75CA7a3xmucvY575WK9IzgrG17co9o4eddY4Aib+FegO@vger.kernel.org X-Gm-Message-State: AOJu0Yy7cMQ/Jo2UYKfrJs0ymD5+Qt/ewpZgWSwkKfn4vzr3O5D6Vgsl tzSqxn59nhJEosPSiWh4WRVIptzsznunS4VMXxuzITt7HsMM9kXjHkhjYh9wLbcbeww= X-Gm-Gg: AfdE7cmt/xOXHKi3/VJ1aBsIeVuD8cytUrfM9rxCZpMCF5oOROlsLgg4eQzCn7SEO8f Gc+s39qO/Q0dE21c+qLkqXZtsNr1bYm2+9CNHNwaqVD/GT0bbHLYXUKxewwNkQA81twlbt6Q5wc vZjOOpMcCLCgi5I+V8LzA3Y2GhGHXq59508jaPA5Ojt01rtZaiMxtIY+/ezpKqqCwcJMZL/QmMr hoVj/QAoOp3cFQtnH5zCA+oTPjV29H04+asI0lb8AZwExggyKAnAnT6N2vX0fLAjboLS5OiAawp vXxROPMxD6iXEk8BravaTM9TmLY5K0iUYIqCY5ml6wtPQL5Z0apBYIFfBE12S3Jo8goj/+MxiZZ 3F6IWFSDZg6oY6OZLcROtb8dQfDbqW0YzyTVAmOxaixgweyjn4AASpKGjCvUn X-Received: by 2002:ac8:5fcf:0:b0:517:8711:d46c with SMTP id d75a77b69052e-51cbf0f3fa9mr100726891cf.31.1783971692761; Mon, 13 Jul 2026 12:41:32 -0700 (PDT) Received: from ziepe.ca ([159.2.72.92]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-51caafd8b44sm90213801cf.30.2026.07.13.12.41.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Jul 2026 12:41:32 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.97) (envelope-from ) id 1wjMWx-0000000E6nC-2kaU; Mon, 13 Jul 2026 16:41:31 -0300 Date: Mon, 13 Jul 2026 16:41:31 -0300 From: Jason Gunthorpe To: "Aneesh Kumar K.V (Arm)" Cc: iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-coco@lists.linux.dev, Robin Murphy , Marek Szyprowski , Will Deacon , Marc Zyngier , Steven Price , Suzuki K Poulose , Catalin Marinas , Jiri Pirko , Mostafa Saleh , Petr Tesarik , Alexey Kardashevskiy , Dan Williams , Xu Yilun , linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Sven Schnelle , x86@kernel.org, Michael Kelley Subject: Re: [PATCH v7 20/22] dma: swiotlb: free dynamic pools from process context Message-ID: <20260713194131.GZ3133966@ziepe.ca> References: <20260701054926.825925-1-aneesh.kumar@kernel.org> <20260701054926.825925-21-aneesh.kumar@kernel.org> Precedence: bulk X-Mailing-List: linux-s390@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: <20260701054926.825925-21-aneesh.kumar@kernel.org> On Wed, Jul 01, 2026 at 11:19:24AM +0530, Aneesh Kumar K.V (Arm) wrote: > @@ -840,7 +843,7 @@ static void swiotlb_del_pool(struct device *dev, struct io_tlb_pool *pool) > list_del_rcu(&pool->node); > spin_unlock_irqrestore(&dev->dma_io_tlb_lock, flags); > > - call_rcu(&pool->rcu, swiotlb_dyn_free); > + swiotlb_schedule_dyn_free(pool); This knows if the pool has cc_shared memory in it since there is now a flag tracking that? So should the work queue version be conditional on that flag? Jason