From patchwork Wed Dec 6 10:43:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuntao Wang X-Patchwork-Id: 751159 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="b/OKQCGg" Received: from mail-pj1-x1034.google.com (mail-pj1-x1034.google.com [IPv6:2607:f8b0:4864:20::1034]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1D4EE12B; Wed, 6 Dec 2023 02:44:49 -0800 (PST) Received: by mail-pj1-x1034.google.com with SMTP id 98e67ed59e1d1-286e05d9408so572440a91.1; Wed, 06 Dec 2023 02:44:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1701859488; x=1702464288; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=M5B5d2/8qxaPjHZlns3KcRSngp7JdBdKI506/CONwgk=; b=b/OKQCGgwQc8Hr3M5I2qojbEa8HFx3XHxyKmhoZ4X/KPRU5EwcZLmJKyjrUeXIvUev Blp5XdZztB4+9Ssap+UqLnOfqzYTBkkkAjqt1L5crraCb3i8q1JMY0qn0ai5+k/a4BKL 7kgV29bsfZ3meTLAqw4I6IRhi97I1W2u+rVFb3tOLvMjddoQaXq4fYh9kbMaoMYAwveu T8MPYydJ36VSy1pp1UYFKWRcSqpCj9PasE/vvFcipn4K+R3aDX12pMZLF+GqFQAtlKie WpN8cH9mCXToJrgqilLRH+ngAFzBIxXFm92HbVRdABnBb5UmTT2cJGplMSLxrn1MUIyc 3tKA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701859488; x=1702464288; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=M5B5d2/8qxaPjHZlns3KcRSngp7JdBdKI506/CONwgk=; b=dQbdiQL+ozzqXDdKlHL8DgSlcaBvAuM/Q6o+CSiCoF3n6C/25ICs+66CGRfp2K270E I/wox4vhLeeguMgGuauasIq155AHHDzI3uMZfY1HnWV7/RDWPsooWYzXAwug2mGOUAAT WTvRi+EL3TYpEXa8Q8rZJurwU7nmLY2WlxELO4nNdIfRXnr/EedVpcQJibO+2Tv1vH2O qYV3aWBLnGgiJUGbdWVKopNoEYKEl7D1So/I4RsmlZflr71kMJQn9Wzukcf7UQONp+0b rutAL87dEqqhC8kRfw6fD3B2nex9xnstHbulhGdyEXpty1UJEizVu4Bg7kePj5CdLVyU s0pQ== X-Gm-Message-State: AOJu0YyBEspCftUK6MgzM2KJGqQviTi/TQFv2KVWpieMjo8s9zTa+FvE XPEP4W5iDL++XPEmtw2SbKT9347or4c= X-Google-Smtp-Source: AGHT+IGWci80b+s+FKtQ0vgvKG11CNyQku53N4VrBf95PjPh+wFgPvrb0biGtdgc5OxF8oGoNIzP5w== X-Received: by 2002:a17:90b:3e8c:b0:286:975f:7e36 with SMTP id rj12-20020a17090b3e8c00b00286975f7e36mr996284pjb.12.1701859488348; Wed, 06 Dec 2023 02:44:48 -0800 (PST) Received: from code.. ([144.202.108.46]) by smtp.gmail.com with ESMTPSA id d11-20020a17090a2a4b00b00286596548bcsm10020811pjg.37.2023.12.06.02.44.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Dec 2023 02:44:48 -0800 (PST) From: Yuntao Wang To: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org Cc: "Rafael J. Wysocki" , Len Brown , Dan Williams , Alison Schofield , Dave Hansen , Yuntao Wang Subject: [PATCH 2/3] ACPI/NUMA: Optimize the check for the availability of node values Date: Wed, 6 Dec 2023 18:43:17 +0800 Message-ID: <20231206104318.182759-3-ytcoode@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231206104318.182759-1-ytcoode@gmail.com> References: <20231206104318.182759-1-ytcoode@gmail.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The first_unset_node() function returns the first unused node in nodes_found_map. If all nodes are in use, the function returns MAX_NUMNODES. We can use this return value to determine whether there are any available node values in nodes_found_map, eliminating the need to use the nodes_weight() function to perform this check. Signed-off-by: Yuntao Wang --- drivers/acpi/numa/srat.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/numa/srat.c b/drivers/acpi/numa/srat.c index 9d2d0deb256e..d58e5ef424f2 100644 --- a/drivers/acpi/numa/srat.c +++ b/drivers/acpi/numa/srat.c @@ -67,9 +67,9 @@ int acpi_map_pxm_to_node(int pxm) node = pxm_to_node_map[pxm]; if (node == NUMA_NO_NODE) { - if (nodes_weight(nodes_found_map) >= MAX_NUMNODES) - return NUMA_NO_NODE; node = first_unset_node(nodes_found_map); + if (node >= MAX_NUMNODES) + return NUMA_NO_NODE; __acpi_map_pxm_to_node(pxm, node); node_set(node, nodes_found_map); }