Received: by 2002:a05:7412:d1aa:b0:fc:a2b0:25d7 with SMTP id ba42csp863137rdb; Tue, 30 Jan 2024 00:12:49 -0800 (PST) X-Google-Smtp-Source: AGHT+IFySr2Q2x6EUJaNeIuU1Xgn0p3beiIwiKZfcB5AS4EpM3lsbFeRuAqFnGF98fnZ6CsAyUzU X-Received: by 2002:a17:906:2991:b0:a34:aaef:faf6 with SMTP id x17-20020a170906299100b00a34aaeffaf6mr6298130eje.23.1706602369039; Tue, 30 Jan 2024 00:12:49 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1706602369; cv=pass; d=google.com; s=arc-20160816; b=sO7aBRk1u9y/PL6meCsfDnCrrW9LZo24YqHG9qBlwtQCbGSwq1xWykdLU4ihd+j9Pv zyO+hBnHXM+SmwIktg6QY8pip6byI/jyrBby2FRNjVH+dh+baay74Hf0IL7te+akokq/ EGsxMXg4zWqPk551pCdO2jLDN18f4YZqtpaQLF07hOzcTESrfKP3hNTPxkjXUqX7BzRK J7COevJLYAUI20If0fKlB+VjS8eeOM8SPwTByR+cdI5MxEKeQFB/fqgtmJ8ZfHnOuShC HIiUR8lVZ78dqlQfEhNzrgppXOsVYUwuUjwEJSsjr1RGdoM60iJqrrmlz+1nPFnwyTBK d2gw== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=cc:to:from:subject:message-id:references:mime-version :list-unsubscribe:list-subscribe:list-id:precedence:in-reply-to:date :dkim-signature; bh=AIFgjiuxwRuK6BHQq+omF6J4YBG6WwTGzt+ObEmxSXA=; fh=oocptefG+2lvFQHArvmvqHgNVObzaNhqiaCoJ7BqlI8=; b=0KOmC94USVWrUf9F/A4hgxEfCBrhtRuERSDQZdNPfGMaasU3+hcMQaDnbcAGYBUEA7 GnqCIt5y2oVZROzuBC/mhsM9JzDDqtSSrFUPgdh1ro/zRNbv0843lNAmX7Q3U2/ED2xx REGKs3JLOcDp9hZ48RORgiIl7f0jQ35JLquQoM3QZWhI5dC+OWEvdHv8bLhRvUQrmdXR WgoLb9Whpts18a4xsMLSdsyeqJriFq80G3vkJxTJGafDuwHC4L+CVmDU3OQ4bQ1oTUko 3rAcDIbi0ecQZHBCExFtH5d2q8VCRD5ngLKX470njV8ZUq+iR0klWCwSrs1mHw9VrSj4 NYlA== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@google.com header.s=20230601 header.b=CNAAiCYG; arc=pass (i=1 spf=pass spfdomain=flex--yosryahmed.bounces.google.com dkim=pass dkdomain=google.com dmarc=pass fromdomain=google.com); spf=pass (google.com: domain of linux-kernel+bounces-44099-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-44099-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Return-Path: Received: from am.mirrors.kernel.org (am.mirrors.kernel.org. [147.75.80.249]) by mx.google.com with ESMTPS id m21-20020a17090679d500b00a35aa0a9700si1878916ejo.226.2024.01.30.00.12.48 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Jan 2024 00:12:49 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-44099-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) client-ip=147.75.80.249; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20230601 header.b=CNAAiCYG; arc=pass (i=1 spf=pass spfdomain=flex--yosryahmed.bounces.google.com dkim=pass dkdomain=google.com dmarc=pass fromdomain=google.com); spf=pass (google.com: domain of linux-kernel+bounces-44099-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-44099-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id B37691F2397B for ; Tue, 30 Jan 2024 08:12:48 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5A6B85730D; Tue, 30 Jan 2024 08:12:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="CNAAiCYG" Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (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 3532856B7E for ; Tue, 30 Jan 2024 08:12:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706602360; cv=none; b=VaPX6aTB0C5nXHO7mkmpLGi7kEfqe34byh6LbFn7E+2dB6Qa3CZiWUkP6HXbmg3/GzmHCLeRJwos8UuzxdCaGWrX9UWPJwUM506u3MoYIVTnSoK+w5V7TWwxif82hTU/I9pjxRzQ6aQ3CvcEsfewdWxbEw5um8YetKVDAIYYeK4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706602360; c=relaxed/simple; bh=+9KixsXhJbFgsR1R6Jk8tcgYUTRD+kHFPGe9rg9KqZE=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=gSfs/oMpx/5n8eOh1X5AdZP5KgnRk2Y/b4mJI7YdVbi/HTbvYrVk95wnqx8baErNmGXxmADgCBYTuIg2mNs8W2AomMa9oO/lp7180QgMruUZn3ncf+GEZBfRiRRhkQLfkCadYcPhlsbHIf9eU87e4DYupzy4A/quCvIT1CMLMTA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--yosryahmed.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=CNAAiCYG; arc=none smtp.client-ip=209.85.219.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--yosryahmed.bounces.google.com Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-dc2470bc0bdso6325657276.1 for ; Tue, 30 Jan 2024 00:12:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1706602358; x=1707207158; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=AIFgjiuxwRuK6BHQq+omF6J4YBG6WwTGzt+ObEmxSXA=; b=CNAAiCYGyXAG42esBUZ2peu4tHKWaMmOA3/rIcuREKNpXnlPJZUYfivmA1tkAir0wP 98guc66GVBGEBWoNgT1gKiUseiyVPfyOk897p+1rkVl42UqfZduHQp+JMBkq8TBRkRFO 1k+gKpBoI1TyYykj68sW2cJIXuIcdRFtL+6u3uSVHP4xil3OB1IqWicOysUxqbLMnAAd 2rPrhWGkgScN6sEvPhZLPmxuvYm5e7O1amPBh+rwmNUS30Epgt4DeMwYqnFZRZ1OLA7b avNg4bc788X8tWpE3CF72sfW5durEFdrV3uc/+dBW2uclzyDSVAtAVM9W7Uw+FWmBOOa 40SA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706602358; x=1707207158; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=AIFgjiuxwRuK6BHQq+omF6J4YBG6WwTGzt+ObEmxSXA=; b=V/jE09gNzBjfBhrr8e+Y4Q6GlgNchw71nSLHTv7HqIdmwkV6ea63BRaT2TajbNl1y4 QYI15oT2wpSkMj9Ox+gP7Xb56Y2LxD8k39lLbktXKWfKLTbN/wUHepuKbSrR+nGNHK7G yiB9/hMxvWfMqKHY5+VgqVE9lFdHtyDSlO2zvoUGfM2A9Cio0/PfB5qmNvTFAECgwUQy hm6sucKBk7bdQzJHnOiGGPs8ntrtvYEt4NflU/jMhakdpIUwBaEAT+Q/mBOCcGGc28Qm irIQiqNJ24f3SRDQX4LcbaqHiUpGcGAPEkI5wgfQ7jdrfx2f9VBiYU+y93Qi2DQD0yK3 axug== X-Gm-Message-State: AOJu0Ywu716eguOpMBmeUunbMblCNT7cjjpsYvZr2PrykfltYGd967MO Gp2XKEySL3AFo7od9GgGVPvHvBxQR4ksVcJ9HRXO6E+Vzlf4tydIcHFjv7vgl6sh+DNLuAIYnwI ZhRS8TI83pOGrCVj/5Q== X-Received: from yosry.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:29b4]) (user=yosryahmed job=sendgmr) by 2002:a05:6902:2501:b0:dc2:57c9:b462 with SMTP id dt1-20020a056902250100b00dc257c9b462mr494232ybb.9.1706602358253; Tue, 30 Jan 2024 00:12:38 -0800 (PST) Date: Tue, 30 Jan 2024 08:12:36 +0000 In-Reply-To: <20240130014208.565554-10-hannes@cmpxchg.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240130014208.565554-1-hannes@cmpxchg.org> <20240130014208.565554-10-hannes@cmpxchg.org> Message-ID: Subject: Re: [PATCH 09/20] mm: zswap: simplify zswap_invalidate() From: Yosry Ahmed To: Johannes Weiner Cc: Andrew Morton , Nhat Pham , Chengming Zhou , linux-mm@kvack.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="us-ascii" On Mon, Jan 29, 2024 at 08:36:45PM -0500, Johannes Weiner wrote: > The branching is awkward and duplicates code. The comment about > writeback is also misleading: yes, the entry might have been written > back. Or it might have never been stored in zswap to begin with due to > a rejection - zswap_invalidate() is called on all exiting swap entries. > > Signed-off-by: Johannes Weiner Acked-by: Yosry Ahmed