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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 31B20C433F5 for ; Tue, 12 Oct 2021 18:02:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1F60B6109E for ; Tue, 12 Oct 2021 18:02:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233033AbhJLSEE (ORCPT ); Tue, 12 Oct 2021 14:04:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52676 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232404AbhJLSD5 (ORCPT ); Tue, 12 Oct 2021 14:03:57 -0400 Received: from mail-qk1-x72e.google.com (mail-qk1-x72e.google.com [IPv6:2607:f8b0:4864:20::72e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AEA20C061570 for ; Tue, 12 Oct 2021 11:01:55 -0700 (PDT) Received: by mail-qk1-x72e.google.com with SMTP id q125so20166686qkd.12 for ; Tue, 12 Oct 2021 11:01:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cmpxchg-org.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=0e0rL00kLadi2lyvM6hOzWlirSZ5oBt2j8X8F7bJZSM=; b=chQcxN4bRHoM7gj2TinQmcPE3Y4oJRxOkiEHEqowVxhCJo6D+Op8aYj8LkysJoHjDt Ayh2luHwOdYCu+ecHB4EonMFD7nG5YVFsuzIR1Non/doeQFyR3rwSnBvD2tgIX719L5D NtJIuo/6VjEkihK9V8OZrEvY7+8xrBHkeKCUeVFHJFwICJ0/U2v4UXYBhUBwo6I0W7t1 MrxJ0Bx8nlpqDdR6T2tOncI4YqW7cw53JU2/mObdD/bJBfEqeA6EihjNw5M/h991Zvgp r/mHE8Kxz8P9RbBBsKrnLUEyV6JbZInyDW84XQIr+1R9nW/jlR07K3uM55hJPtBeMTFB T0MA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=0e0rL00kLadi2lyvM6hOzWlirSZ5oBt2j8X8F7bJZSM=; b=LAueUD4grwbHnHmTKjqOWd+2CPYBGn8qwmH7qs9/F9xCkTGyECM5ixPgOzjzMdrJT/ 6Z+bcSQM99HK2FZmCoEa29TUC5FbkvjCgQ3eJamWV1a8/IAI5VzN05ftoHA72M+IkzvK DGaMiJqqU2l0T5poPpSR5IyPLEzHHDPfVe9vgQ8sPRGOuH1PMQUDbxPE3oaV888N7jSa jKwfLGXzjEUaxNrZnyApSFlv90K/3eMxcjALv6pCHLI/OngihDYmRm3qYSKVlqD7x2QR SkD2HreLbrVRhsUwKyLKw+Xm37WbaejuvwNtjXQgErjZbREpqZRsHCBC+AwPRDOkRwq/ 2rGg== X-Gm-Message-State: AOAM5310y9cf88CzTKsSYOPbuuLnbKS+GtJZHS9mhkIn4/5IG1nGk40D wdtRg4epPzhEQlh2OwZfO0+Plw== X-Google-Smtp-Source: ABdhPJza8yelISHYV2A2JNlOPcudILx0Sa5Dcpdsaxzffy0q9fqNcu137J6I1K7iZBHRbBmYnVVrFw== X-Received: by 2002:a37:a041:: with SMTP id j62mr21265322qke.423.1634061714932; Tue, 12 Oct 2021 11:01:54 -0700 (PDT) Received: from localhost (cpe-98-15-154-102.hvc.res.rr.com. [98.15.154.102]) by smtp.gmail.com with ESMTPSA id a16sm5992748qkn.16.2021.10.12.11.01.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Oct 2021 11:01:54 -0700 (PDT) From: Johannes Weiner To: linux-mm@kvack.org Cc: Matthew Wilcox , Kent Overstreet , "Kirill A. Shutemov" , Vlastimil Babka , Michal Hocko , Roman Gushchin , linux-kernel@vger.kernel.org, kernel-team@fb.com Subject: [PATCH 03/11] PageSlab: eliminate unnecessary compound_head() calls in kernel/resource Date: Tue, 12 Oct 2021 14:01:40 -0400 Message-Id: <20211012180148.1669685-4-hannes@cmpxchg.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20211012180148.1669685-1-hannes@cmpxchg.org> References: <20211012180148.1669685-1-hannes@cmpxchg.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org virt_to_head_page() implies it. Signed-off-by: Johannes Weiner --- kernel/resource.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/resource.c b/kernel/resource.c index a363211fda99..ca9f5198a01f 100644 --- a/kernel/resource.c +++ b/kernel/resource.c @@ -151,7 +151,7 @@ static void free_resource(struct resource *res) if (!res) return; - if (!PageSlab(compound_head(virt_to_head_page(res)))) { + if (!PageSlab(virt_to_head_page(res))) { spin_lock(&bootmem_resource_lock); res->sibling = bootmem_resource_free; bootmem_resource_free = res; -- 2.32.0