From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B3541C61DD6 for ; Wed, 2 Sep 2026 15:35:00 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 662DF6B00A2; Wed, 2 Sep 2026 11:34:59 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 613DD6B00A4; Wed, 2 Sep 2026 11:34:59 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 551886B00A5; Wed, 2 Sep 2026 11:34:59 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 2F76B6B00A2 for ; Wed, 2 Sep 2026 11:34:59 -0400 (EDT) Received: from smtpin19.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay08.hostedemail.com (Postfix) with ESMTP id B7826140244 for ; Wed, 2 Sep 2026 15:34:58 +0000 (UTC) X-FDA: 85169220276.19.8A47145 Received: from mta0.migadu.com (out-90.mta0.migadu.com [91.218.175.90]) by imf22.hostedemail.com (Postfix) with ESMTP id C5097C0012 for ; Wed, 2 Sep 2026 15:34:56 +0000 (UTC) Authentication-Results: imf22.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=ge+HIIGq; spf=pass (imf22.hostedemail.com: domain of shakeel.butt@linux.dev designates 91.218.175.90 as permitted sender) smtp.mailfrom=shakeel.butt@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1788363297; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=lzSmaUt8Li7YawIgRqOCmX5TNRd2UVPmqb0BnmMdAMc=; b=frcntXtkacayV7g9XvM4xc3eGFomXKM/719lItSg3GRTZfDa6wkHSn+bNJE5hjGo1yfeto 6ywfKL7PlmebkBOft4Q66sxipGtqQ3IPuhUg+trXzb7l3zogb5bJtJawv1B9Jik1WJxxMU RMwaq2AhEV/qPgf3/yMuHpK8fn2G+yQ= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1788363297; b=B1NRu6+rRCiAto+cWE0O1UVNiAdTUMckIbN1ZSaX1p/370Pzecm69NryOLYGlRNiLFhdff z67jFJWTFw4h2eHeE8U9+GP/LpEuP+dfLnlo/DxXu9I4jLaIn5NwxGq0WF1hUaBy1bhA9M CcrzJ84Cs06vlySpOlTGJpqQmSKUO7U= ARC-Authentication-Results: i=1; imf22.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=ge+HIIGq; spf=pass (imf22.hostedemail.com: domain of shakeel.butt@linux.dev designates 91.218.175.90 as permitted sender) smtp.mailfrom=shakeel.butt@linux.dev; dmarc=pass (policy=none) header.from=linux.dev X-Envelope-To: linux-mm@kvack.org DKIM-Signature: a=rsa-sha256; bh=YcWOLss1tLHPyUMwSuqRHic7aNDGFCFnwIVK2MaoRw4=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1788363295; v=1; x=1788968095; b=ge+HIIGqk+eTvCGIGbneI0yIx5epzInrh3ZNwgw3LwBijyGv0B0kwELBGw8VH5kln9Jkk6FI aWEYb8YQEP0IGHtkGyIjJ0RP5xwxWA0S7AUPaW1PlqeX07fdGCHuiOMwAD+VmQmfw7BHNMcP8WC RLN7oPYevk8U1ZE32pe30PT0= X-Envelope-To: linux-mm@kvack.org Received: by smtp.migadu.com with ESMTPS id efcc2935034d3f1b; Wed, 02 Sep 2026 15:34:54 +0000 X-Mizu-Trace-ID: efcc2935034d3f1b X-Migadu-Flow: FLOW_OUT Date: Wed, 2 Sep 2026 08:34:53 -0700 From: Shakeel Butt To: Kefeng Wang Cc: brauner@kernel.org, djwong@kernel.org, cem@kernel.org, akpm@linux-foundation.org, vbabka@kernel.org, surenb@google.com, mhocko@suse.com, brendan.jackman@linux.dev, hannes@cmpxchg.org, ziy@nvidia.com, david@kernel.org, qi.zheng@linux.dev, ljs@kernel.org, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH 2/4] iomap: simplify writepages reclaim guard Message-ID: References: <20260902131653.1338227-1-wangkefeng.wang@huawei.com> <20260902131653.1338227-3-wangkefeng.wang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260902131653.1338227-3-wangkefeng.wang@huawei.com> X-Stat-Signature: 8n8k534tgij15pm68qcqme399bn7fef6 X-Rspamd-Queue-Id: C5097C0012 X-Rspamd-Server: rspam02 X-Rspam-User: X-HE-Tag: 1788363296-107646 X-HE-Meta: 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 Ajb9Owx9 KkmGw8VRDnWSIW5Ao7fwZCBjQoG5hmix95HFfmB/OMKobzVzvEW5a+TiUgkOR904WuXgyyACa0U8Z5malNfvZLXZ0HEDzzE+g7nf6pmDbE3SvJ+Ab/CflrCnPZI18pYWWvBmOwGx/yeX/+IZJFCRApPtYoIZI70A3nBxvKyz7nX05KvZKybqWiwUWF7ngTsCgqQfwgEdm0dub5xRzHPKElg8urp1xA8v9wyTwZwAnSWVXjz1AIcX7zWsATlhf9DPWvYtI87sse/ydFBO5cOSicj22MwCwCB2XWE9OxX4ctLYvvmQ= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Sep 02, 2026 at 09:16:51PM +0800, Kefeng Wang wrote: > Now that kswapd can no longer reach filesystem writeback (pageout() > returns PAGE_ACTIVATE for non-shmem, non-anon folios), any PF_MEMALLOC > context in iomap_writepages() indicates a VM regression, simplify > the check by removing PF_KSWAPD. > > Signed-off-by: Kefeng Wang Reviewed-by: Shakeel Butt