From patchwork Mon Dec 23 14:15:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kaixiong Yu X-Patchwork-Id: 13918948 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9BA171B4144; Mon, 23 Dec 2024 14:21:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734963667; cv=none; b=g3IWkL1yociGgWjM2jTc1EHuqkx0qloFVDptWULB+um458SOQSOYpjVQIfPfoLV061wS7CLi8E0ZrvfMT9hX+G6opMJBg9yvP1n9fOflJjjUpPk4aqtWdPBLUCCC3nYVeHZCw60nGl/OVZh3NtTJr1bOQVf0tQhwq4kFl9JS92I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734963667; c=relaxed/simple; bh=IdHQmWyFeAejWwE0EfX+57lJCHs3w51Kv+o9VdEPcQ0=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=kZAhouCV88T2FQCunQXkMYsiMr3LEp3NvoCBPmD2wU0dwGK6DSuJR+V5R0/yQXZMOoHmaqZYgQ67yC+1C53nRXUyZRt0QwXYW1nPDNxPY+SjOU89x5UJXUpCdsJnMbpooIjBjx6cFSBIesCbcb50KR85PXT0vIPPCvj9gCa8C1g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.187 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.88.194]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4YH0Tx5HR3z11NKN; Mon, 23 Dec 2024 22:17:41 +0800 (CST) Received: from kwepemh100016.china.huawei.com (unknown [7.202.181.102]) by mail.maildlp.com (Postfix) with ESMTPS id 52466140120; Mon, 23 Dec 2024 22:21:03 +0800 (CST) Received: from huawei.com (10.175.113.32) by kwepemh100016.china.huawei.com (7.202.181.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Mon, 23 Dec 2024 22:20:59 +0800 From: Kaixiong Yu To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v4 -next 11/15] sunrpc: simplify rpcauth_cache_shrink_count() Date: Mon, 23 Dec 2024 22:15:46 +0800 Message-ID: <20241223141550.638616-28-yukaixiong@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241223141550.638616-1-yukaixiong@huawei.com> References: <20241223141550.638616-1-yukaixiong@huawei.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To kwepemh100016.china.huawei.com (7.202.181.102) It is inappropriate to use sysctl_vfs_cache_pressure here. The sysctl is documented as: This percentage value controls the tendency of the kernel to reclaim the memory which is used for caching of directory and inode objects. So, simplify result of rpcauth_cache_shrink_count() to "return number_cred_unused;". Signed-off-by: Kaixiong Yu Reviewed-by: Kees Cook Acked-by: Anna Schumaker Acked-by: Jeff Layton --- v4: - Simplify result of rpcauth_cache_shrink_count(). --- --- net/sunrpc/auth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 04534ea537c8..5a827afd8e3b 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -489,7 +489,7 @@ static unsigned long rpcauth_cache_shrink_count(struct shrinker *shrink, struct shrink_control *sc) { - return number_cred_unused * sysctl_vfs_cache_pressure / 100; + return number_cred_unused; } static void