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[23.128.96.18]) by mx.google.com with ESMTP id t1si15907584ile.141.2021.06.01.01.14.02; Tue, 01 Jun 2021 01:14:15 -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=@suse.de header.s=susede2_rsa header.b=rwIHbLcC; dkim=neutral (no key) header.i=@suse.de; dkim=pass header.i=@suse.de header.s=susede2_rsa header.b=rwIHbLcC; dkim=neutral (no key) header.i=@suse.de; 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 S233193AbhFAIOj (ORCPT + 99 others); Tue, 1 Jun 2021 04:14:39 -0400 Received: from smtp-out2.suse.de ([195.135.220.29]:52318 "EHLO smtp-out2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233088AbhFAIOi (ORCPT ); Tue, 1 Jun 2021 04:14:38 -0400 Received: from imap.suse.de (imap-alt.suse-dmz.suse.de [192.168.254.47]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 19B701FD2E; Tue, 1 Jun 2021 08:12:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1622535177; h=from:from:reply-to: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=qd3AF/dKDwqRf8MMLxL/SDKl0uXw83ifH5FXniQbjkg=; b=rwIHbLcCMonwRwRwY6e/sZRnPnOGjsTyH+0PlTmEMr9RaJF6Dv3xAriGByDWOOzjUHX4Jx DlgECyYlbM0prPd7HEys3/DBdxllnCN3YkQgp0iIpoBdG5+pCX4H86T/4OKVR4Hhmg/OGr GSf2VVIpo7Ir/qwsZC6tcHnB4/5NmYw= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1622535177; h=from:from:reply-to: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=qd3AF/dKDwqRf8MMLxL/SDKl0uXw83ifH5FXniQbjkg=; b=+Qc0cDBO22ut006iHHskmjg/FK28DqauNKBw1OxQ7n+hfebOlyZ9tmwjnr8KwfHjj6fRpC jjLnUqnkNEaVo5AQ== Received: from imap3-int (imap-alt.suse-dmz.suse.de [192.168.254.47]) by imap.suse.de (Postfix) with ESMTP id 75138118DD; Tue, 1 Jun 2021 08:12:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1622535177; h=from:from:reply-to: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=qd3AF/dKDwqRf8MMLxL/SDKl0uXw83ifH5FXniQbjkg=; b=rwIHbLcCMonwRwRwY6e/sZRnPnOGjsTyH+0PlTmEMr9RaJF6Dv3xAriGByDWOOzjUHX4Jx DlgECyYlbM0prPd7HEys3/DBdxllnCN3YkQgp0iIpoBdG5+pCX4H86T/4OKVR4Hhmg/OGr GSf2VVIpo7Ir/qwsZC6tcHnB4/5NmYw= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1622535177; h=from:from:reply-to: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=qd3AF/dKDwqRf8MMLxL/SDKl0uXw83ifH5FXniQbjkg=; b=+Qc0cDBO22ut006iHHskmjg/FK28DqauNKBw1OxQ7n+hfebOlyZ9tmwjnr8KwfHjj6fRpC jjLnUqnkNEaVo5AQ== Received: from director2.suse.de ([192.168.254.72]) by imap3-int with ESMTPSA id ooE1GQjstWDlPQAALh3uQQ (envelope-from ); Tue, 01 Jun 2021 08:12:56 +0000 Date: Tue, 1 Jun 2021 10:12:54 +0200 From: Oscar Salvador To: David Hildenbrand Cc: Anshuman Khandual , Andrew Morton , Michal Hocko , Vlastimil Babka , Pavel Tatashin , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm,memory_hotplug: Drop unneeded locking Message-ID: <20210601081250.GA32364@linux> References: <20210531093958.15021-1-osalvador@suse.de> <679d311a-8ad4-bb53-18f0-11190a2bf1b5@arm.com> <20210601074737.GA30768@linux> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Authentication-Results: imap.suse.de; none X-Spam-Level: X-Spam-Score: -0.50 X-Spamd-Result: default: False [-0.50 / 100.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RCPT_COUNT_SEVEN(0.00)[8]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; MID_RHS_NOT_FQDN(0.50)[]; RCVD_COUNT_TWO(0.00)[2] X-Spam-Flag: NO Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 01, 2021 at 10:02:54AM +0200, David Hildenbrand wrote: > If there is no writer anymore, why do we have to protect readers? Yeah, you are right. Let me prepare a v2 as this is getting too sloppy. -- Oscar Salvador SUSE L3