From patchwork Fri Apr 5 17:05:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Michal_Koutn=C3=BD?= X-Patchwork-Id: 786606 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (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 B188417164E; Fri, 5 Apr 2024 17:05:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.130 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712336755; cv=none; b=e7mmHLUqHOuwyl8lIqDohAndKGGlNQM9kPVZMWisxcG5W2/dZAuFOQDZtmMozu1GeJweWnxBrHAgXfJVr3lObOa9lzRagRwV/cQKz5u5Oov2MxX8EjRVymr4j34w/6PHGa8+56hI+5cVFjJhJCiDEjA1p4+s4ugsOyA6CezHJ5g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712336755; c=relaxed/simple; bh=292FtAHAQkVnLeVN989TV5AQEa/YkR9Vv3e9Rljpa14=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=g9ZgvNxXPXBD9BAVk6iEAKinGJHSFJcFPloKd4FGFl7Q1BLeF98hDheU1LTcv4CHaMSxYCWeyBdavX8Cmx6NpoBI6/sqnzI2qhO0wqijTYsf7EcOkfeZqcpX1f0d4YrKGrWR/QkHSEttgO1lHgF1S03cbEg4rPxO8Q2+V64wyno= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com; spf=pass smtp.mailfrom=suse.com; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b=C0JGWdqn; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b=afuAoHsU; arc=none smtp.client-ip=195.135.223.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="C0JGWdqn"; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="afuAoHsU" Received: from imap2.dmz-prg2.suse.org (imap2.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:98]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 0D78021ABE; Fri, 5 Apr 2024 17:05:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1712336752; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=vT8XBjOmiOF2DZOaI8CF1LOaUqXXvEhx/xriwZY31Nc=; b=C0JGWdqn0yuOJeZdigrbYy9nkvUEiDe8JxxzqOL2EJ87oIECnDUXhxlt56Raw64ImP/hrL 8y+jI+/SK5758gU+BEsDOBisv7hWDx8f0BVlypYkMgPdPZauB5xFl5BLdU+4qR6RL5X56s AKtAopOR2L37mXgsDUnMNUielg9mGr8= Authentication-Results: smtp-out1.suse.de; dkim=pass header.d=suse.com header.s=susede1 header.b=afuAoHsU DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1712336751; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=vT8XBjOmiOF2DZOaI8CF1LOaUqXXvEhx/xriwZY31Nc=; b=afuAoHsUSSaWfJ0EVXtxzDQO6En30JUuysIxxye+1XlE7NzesjZW3wnqpEN2FrDtARb9lI 4S7yvOd/HQFJBl1UxmTMW5kIpZadEtwjFy0A+I9tYfBE/JNAML1+1Lf59G6qpcjrFcOUOO Su8w6yWg3z3u/eVP4Rk3OE6UQpU8ACc= Received: from imap2.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap2.dmz-prg2.suse.org (Postfix) with ESMTPS id BCB7013A92; Fri, 5 Apr 2024 17:05:50 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap2.dmz-prg2.suse.org with ESMTPSA id WMJiLW4vEGYteAAAn2gu4w (envelope-from ); Fri, 05 Apr 2024 17:05:50 +0000 From: =?utf-8?q?Michal_Koutn=C3=BD?= To: cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: Tejun Heo , Zefan Li , Johannes Weiner , Jonathan Corbet , Shuah Khan Subject: [RFC PATCH v3 1/9] cgroup/pids: Remove superfluous zeroing Date: Fri, 5 Apr 2024 19:05:40 +0200 Message-ID: <20240405170548.15234-2-mkoutny@suse.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240405170548.15234-1-mkoutny@suse.com> References: <20240405170548.15234-1-mkoutny@suse.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Rspamd-Action: no action X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spam-Level: X-Spamd-Result: default: False [-0.51 / 50.00]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[suse.com:s=susede1]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; BAYES_HAM(-0.00)[33.76%]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; TO_DN_SOME(0.00)[]; RCPT_COUNT_SEVEN(0.00)[9]; RCVD_TLS_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.com:s=susede1]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:98:from]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap2.dmz-prg2.suse.org:helo,imap2.dmz-prg2.suse.org:rdns,suse.com:dkim,suse.com:email]; DKIM_TRACE(0.00)[suse.com:+] X-Rspamd-Queue-Id: 0D78021ABE X-Spam-Flag: NO X-Spam-Score: -0.51 X-Spamd-Bar: / Atomic counters are in kzalloc'd struct. They are zeroed already and atomic64_t does not need special initialization (cf kernel/trace/trace_clock.c:trace_counter). Signed-off-by: Michal Koutný --- kernel/cgroup/pids.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/cgroup/pids.c b/kernel/cgroup/pids.c index 7695e60bcb40..0e5ec7d59b4d 100644 --- a/kernel/cgroup/pids.c +++ b/kernel/cgroup/pids.c @@ -75,9 +75,7 @@ pids_css_alloc(struct cgroup_subsys_state *parent) if (!pids) return ERR_PTR(-ENOMEM); - atomic64_set(&pids->counter, 0); atomic64_set(&pids->limit, PIDS_MAX); - atomic64_set(&pids->events_limit, 0); return &pids->css; }