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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9205CC77B61 for ; Mon, 1 May 2023 17:03:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232711AbjEARDa (ORCPT ); Mon, 1 May 2023 13:03:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39400 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233161AbjEARB6 (ORCPT ); Mon, 1 May 2023 13:01:58 -0400 Received: from mail-pf1-x44a.google.com (mail-pf1-x44a.google.com [IPv6:2607:f8b0:4864:20::44a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DABB940D7 for ; Mon, 1 May 2023 09:57:02 -0700 (PDT) Received: by mail-pf1-x44a.google.com with SMTP id d2e1a72fcca58-64115e69e1eso23348157b3a.0 for ; Mon, 01 May 2023 09:57:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1682960195; x=1685552195; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=uHz3gIMQ14LMAlJH3BHlupoStZ8/+BrUL09pT+1nDVs=; b=cL9ulyr1TZmloHcY9ZAQt2916/Hy8kFnLfCTiFsQOyXG21mKZDk2kVsVGS3swW/o9A lmsPI4V+ni8bJ2cDmSOvMhTe7jiZncm+a+dX+h32N0c6xUNbGxEO59xGx2raskwk+yE+ EY40N2q/B5lxnqf+wqKkKUxKcIxmFMWDeQ/MPMZ5UoklVL3SBusyJB6cuGrGjrAev2jt I6daIpOCKx+oNZEO+zjvrtYAnmo4PPKmPdsrXndRo+l1Ieu4A+pt+fjUYtVugs+1Ncqh keNiqCygIJKFaCxV1denDbSpt/uk9T3I2i0PdEP0vYROV8UgAo/d+Ogm15HjT6dg+WeL DFBQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682960195; x=1685552195; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=uHz3gIMQ14LMAlJH3BHlupoStZ8/+BrUL09pT+1nDVs=; b=k+Bwwb+/S85EKC6d8S+Pkbofz0LqJGkuTAJ/qSI85U/tdq6Z+29x9kwPpvZiWUN+EQ Qvwnfigy3EoFQuKiCkjnd5jt2UbaW1CQnWzXzuWM8b5NCxiyyZVvzSr4RTdVXqJSMZzd XcIPVtn+qUUaJtOMlZUpWEUr37qrlKGig3NpkFdllJKYLmpHI3jzIEN9QdPouFu3L9Pi oAMZOXHTaDwaLKMI2fBoDyk4wXf7ITsXYOeZrQYJNMPkFz4qRLVhyzspuUWxeCb8MSxp l96BGLJAnQJ4BnlF5Kq/3kgWX1uNIBwZTpUHbgFIJjzD5ptZZQySk0R8eGvQplSN30GF 1cTA== X-Gm-Message-State: AC+VfDwnKiN7Ns8wWk4aqUE/w1gvf+ZO4FiZpEaGF5Um3S2/hDypd5GT KZTkezqW/N5EVdI9bOb44hEeQSjlnfs= X-Google-Smtp-Source: ACHHUZ7qtjt6xJv0/W6KanE/G1kJWq4JffXkn4YmB84VAxkpL2X6o57PZ5XdLwRiQeUXxZyrcuCDjEjhXCs= X-Received: from surenb-desktop.mtv.corp.google.com ([2620:15c:211:201:6d24:3efd:facc:7ac4]) (user=surenb job=sendgmr) by 2002:a17:90a:5105:b0:244:9620:c114 with SMTP id t5-20020a17090a510500b002449620c114mr3673305pjh.1.1682960194723; Mon, 01 May 2023 09:56:34 -0700 (PDT) Date: Mon, 1 May 2023 09:54:48 -0700 In-Reply-To: <20230501165450.15352-1-surenb@google.com> Mime-Version: 1.0 References: <20230501165450.15352-1-surenb@google.com> X-Mailer: git-send-email 2.40.1.495.gc816e09b53d-goog Message-ID: <20230501165450.15352-39-surenb@google.com> Subject: [PATCH 38/40] codetag: debug: mark codetags for reserved pages as empty From: Suren Baghdasaryan To: akpm@linux-foundation.org Cc: kent.overstreet@linux.dev, mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org, roman.gushchin@linux.dev, mgorman@suse.de, dave@stgolabs.net, willy@infradead.org, liam.howlett@oracle.com, corbet@lwn.net, void@manifault.com, peterz@infradead.org, juri.lelli@redhat.com, ldufour@linux.ibm.com, catalin.marinas@arm.com, will@kernel.org, arnd@arndb.de, tglx@linutronix.de, mingo@redhat.com, dave.hansen@linux.intel.com, x86@kernel.org, peterx@redhat.com, david@redhat.com, axboe@kernel.dk, mcgrof@kernel.org, masahiroy@kernel.org, nathan@kernel.org, dennis@kernel.org, tj@kernel.org, muchun.song@linux.dev, rppt@kernel.org, paulmck@kernel.org, pasha.tatashin@soleen.com, yosryahmed@google.com, yuzhao@google.com, dhowells@redhat.com, hughd@google.com, andreyknvl@gmail.com, keescook@chromium.org, ndesaulniers@google.com, gregkh@linuxfoundation.org, ebiggers@google.com, ytcoode@gmail.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, bristot@redhat.com, vschneid@redhat.com, cl@linux.com, penberg@kernel.org, iamjoonsoo.kim@lge.com, 42.hyeyoo@gmail.com, glider@google.com, elver@google.com, dvyukov@google.com, shakeelb@google.com, songmuchun@bytedance.com, jbaron@akamai.com, rientjes@google.com, minchan@google.com, kaleshsingh@google.com, surenb@google.com, kernel-team@android.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, kasan-dev@googlegroups.com, cgroups@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org To avoid debug warnings while freeing reserved pages which were not allocated with usual allocators, mark their codetags as empty before freeing. Maybe we can annotate reserved pages correctly and avoid this? Signed-off-by: Suren Baghdasaryan --- include/linux/mm.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 27ce77080c79..f5969cb85879 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -5,6 +5,7 @@ #include #include #include +#include #include #include #include @@ -2920,6 +2921,13 @@ extern void reserve_bootmem_region(phys_addr_t start, phys_addr_t end); /* Free the reserved page into the buddy system, so it gets managed. */ static inline void free_reserved_page(struct page *page) { + union codetag_ref *ref; + + ref = get_page_tag_ref(page); + if (ref) { + set_codetag_empty(ref); + put_page_tag_ref(ref); + } ClearPageReserved(page); init_page_count(page); __free_page(page); -- 2.40.1.495.gc816e09b53d-goog