Received: by 2002:a05:6a10:c604:0:0:0:0 with SMTP id y4csp3469071pxt; Tue, 10 Aug 2021 04:32:43 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxVQnESK/n4FaORc+EibulTNQ3U6GqEKs5N2REQ9MU169rkZoLAIBCNj0uKZ4gfrqhi/As8 X-Received: by 2002:a05:6402:550:: with SMTP id i16mr4367356edx.177.1628595163647; Tue, 10 Aug 2021 04:32:43 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1628595163; cv=none; d=google.com; s=arc-20160816; b=ducSiTjvbI9qXlkClPEDsNYdpI1uo9RIDCznjGYTDjr8xJIDP9+b/+7/BF30zxYnfU wl/xATSVXL44C5cXU6diGAMrYzsD+uweYpigR8AA/vhJaOJDRSsXKvMAIQV57t9vxNkw m2vTwHRvRoa1+xrj99h+7vYZOpWCHoQksglaYeEz5B6vmmZ1EEd5CynQYscQAF4JQ4yG FnDSytWWjiozpC3cfNPw1Yq6TD+LaCoodE1dasoc3MADrxW7s3OT+waz5/6NL+cVoRcQ gExN9ThH2OjpiO2i5XQf/qptVtX0Dqf7Y5wqNAuUgs+MAQI+aDzuRZfjo15WpdsF43Jn P4aw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=0Hg3yOCCfu/9tRoCTP06JBGmFtKzhXisBZBHnJVIdds=; b=dE4rzNat6Z1EDpS7BaoiT68skiL2HOWjITXm/udlDvJEUgPHUdRzTvW9URnbdDTjo/ y/2t2s9xXMvTuGBtZ+IOf78Eq9oo2+Vuw0osD2HnYr4j2mTnUFqhXB9q3zY/8Yd1bT17 n8yeNcGoJWZLpRLvk6DUivZm7BKlLdDSbUg1MRuSufVAj4pWGmkfKnqPSTmF9M+FX4rb 1pQzeH7jvXUCuWN3pO7YUcsDExR4hKx0A8jzYfY/6CdLSiOtFZkofNBgD0LkbisKdhkH bPbFHLbXxEjgUxjlUeTohXetWQM1ydVxm7VU4Sos6dOFsMrou5BxUhxy7yZ8IvCtXuJ3 5IDw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=eohOY9eu; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id gn42si14254423ejc.103.2021.08.10.04.32.19; Tue, 10 Aug 2021 04:32:43 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=eohOY9eu; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238029AbhHJIQv (ORCPT + 99 others); Tue, 10 Aug 2021 04:16:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60608 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237067AbhHJIQq (ORCPT ); Tue, 10 Aug 2021 04:16:46 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3479C0613D3; Tue, 10 Aug 2021 01:16:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=0Hg3yOCCfu/9tRoCTP06JBGmFtKzhXisBZBHnJVIdds=; b=eohOY9euFtdixTb9+gqI8eoqOi bdcEojOW8XSgc7Ck4b2o/akIxMbVNNvbkmNrjiOIpjpzwF28xPA8z0CR6t62oX+29yKEMniLNETlK vG2uncJQItW0EDddy4ujCRNtNMjUG7SW91JtQ9JLnyfHAa7w/QRgEvVxDCMdNNIDPgu+eOiVklmUb 6sDkeLYnBwwx6NW+yJ36C/07q9Nhrkj4itAHqT1wlh3I9jqmbusAAp27zx0wEsNDjXYcpcCxHpLEQ zMm9e9cYGk16iCNnNXPy6GJrcE+EzU1L6/yrYhPCEFcdLBB2cKq5xsqeMAMu0ATY88dI5MH79i3ec OPgfdqTw==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDMv2-00Bsta-CL; Tue, 10 Aug 2021 08:15:37 +0000 Date: Tue, 10 Aug 2021 09:15:28 +0100 From: Christoph Hellwig To: Vishal Moola Cc: vishal.moola@gmail.c, willy@infradead.org, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH] Page Cache Allowing Hard Interrupts Message-ID: References: <20210730213630.44891-1-vishal.moola@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210730213630.44891-1-vishal.moola@gmail.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Stupid question, but where do we ever do page cache interaction from soft irq context?