From nobody Tue Apr 7 15:54:03 2026 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 8B13DC433FE for ; Mon, 17 Oct 2022 16:03:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231160AbiJQQDD (ORCPT ); Mon, 17 Oct 2022 12:03:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38604 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230149AbiJQQCr (ORCPT ); Mon, 17 Oct 2022 12:02:47 -0400 Received: from mail-ej1-x630.google.com (mail-ej1-x630.google.com [IPv6:2a00:1450:4864:20::630]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0735A6DF8E for ; Mon, 17 Oct 2022 09:02:45 -0700 (PDT) Received: by mail-ej1-x630.google.com with SMTP id bj12so25923598ejb.13 for ; Mon, 17 Oct 2022 09:02:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; 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=JtTLJEmxkngU/xzkXx+LrxeCsOIvLIsQVzHgn6JJ/30=; b=Rfae/Y+4yaGIP0vcpaZVNUfII+7m7g52LOf1BBwmovC33F4FdDhsJTYyIWL6AuKQyJ 00E7hdNbT9AJARRPFsDe+QTTbCVOvP+tYMJdn3lM6XO5CgyjpiptP6Q89gE+W1m+COwH HIeCPuYctOpQLqLjeW8NBHyioUVGGZIfXWGSFqtzWlYBCk3fQzcUr7twHFDxB6r6BW5L KFSwG/f1vRCNHovUODXMUVMhzSQ+3NWuvcbOzn46gaRHV7UEPuNjXWgRV3pLSNYQtIoe cya/NQMrFKU+F/PM631Jf2/A1+xMxqBwxO0MeJ6+eWPO8W3Tq1TO0XHKXup/VIpqLgfW nVjw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=JtTLJEmxkngU/xzkXx+LrxeCsOIvLIsQVzHgn6JJ/30=; b=ZyLSrGnWQH7+n/Lu33Sl3aHk2p4WONg5+rGq4dezU8FwwClkPlddJtxBMNSH/blMmd 3As5R8GxYVSj1ISxDHKmfX8AREr0Y9cQc+iY03/NQgCjtnVEhocKMuqoHzN7K5LXrWld OalRqohW+KoipH+i7CI/6IOl0mUa9Xp9wm+RDAqovtPBj65UJfpxtUxAC0Rr19ZFmKZI U5C6yDhGG37cKnQD4P//vrg+iIjqGoKXRA7wL4p45QXHoJQNabwfWBwQ6qi2vg6q+uLV tkgLGF4yMshx69+bqhGgdo5dapzaKX1FN02n9diNSvg89Z3OiSGwKHfTA80ZJtyxz6qs 5KCg== X-Gm-Message-State: ACrzQf2K0j48E47NEtAjcuOo6Q/1k8SpQSqcEnNFk98uLO8V10mg5buO E1q3Rpr6D19xBxDu9ZwTJGo= X-Google-Smtp-Source: AMsMyM5llVzvSQnQKDP6QZSuQ5Zyi2qyUSdhaPTRPjvw7/c1QoH9pgMxAEO7uSQNp7a9ikcRbXmHEw== X-Received: by 2002:a17:906:7944:b0:73c:838:ac3d with SMTP id l4-20020a170906794400b0073c0838ac3dmr9166590ejo.242.1666022563310; Mon, 17 Oct 2022 09:02:43 -0700 (PDT) Received: from pc638.lan ([155.137.26.201]) by smtp.gmail.com with ESMTPSA id g16-20020a170906539000b0073d5948855asm6389629ejo.1.2022.10.17.09.02.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Oct 2022 09:02:42 -0700 (PDT) From: "Uladzislau Rezki (Sony)" To: Andrew Morton Cc: linux-mm@kvack.org, LKML , Christoph Hellwig , Matthew Wilcox , Nicholas Piggin , Uladzislau Rezki , Oleksiy Avramchenko , Steven Rostedt Subject: [PATCH 4/7] mm/vmalloc: Use a trace_alloc_vmap_area event Date: Mon, 17 Oct 2022 18:02:30 +0200 Message-Id: <20221017160233.16582-7-urezki@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221017160233.16582-1-urezki@gmail.com> References: <20221017160233.16582-1-urezki@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" This is for debug purpose and is called when an allocation attempt occurs. This event gives some information about: - a start address of allocated area; - a size that is requested; - an align that is required; - vstart/vend restriction; - if an allocation fails. Cc: Steven Rostedt Signed-off-by: Uladzislau Rezki (Sony) --- mm/vmalloc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 83b54beb12fa..f4397817ccd7 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -43,6 +43,9 @@ #include #include =20 +#define CREATE_TRACE_POINTS +#include + #include "internal.h" #include "pgalloc-track.h" =20 @@ -1621,6 +1624,8 @@ static struct vmap_area *alloc_vmap_area(unsigned lon= g size, size, align, vstart, vend); spin_unlock(&free_vmap_area_lock); =20 + trace_alloc_vmap_area(addr, size, align, vstart, vend, addr =3D=3D vend); + /* * If an allocation fails, the "vend" address is * returned. Therefore trigger the overflow path. --=20 2.30.2