From nobody Tue Apr 7 19:14:17 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 9C83DC433FE for ; Tue, 18 Oct 2022 18:11:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229731AbiJRSLE (ORCPT ); Tue, 18 Oct 2022 14:11:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45282 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229868AbiJRSLA (ORCPT ); Tue, 18 Oct 2022 14:11:00 -0400 Received: from mail-ed1-x535.google.com (mail-ed1-x535.google.com [IPv6:2a00:1450:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 076212A402 for ; Tue, 18 Oct 2022 11:10:59 -0700 (PDT) Received: by mail-ed1-x535.google.com with SMTP id r14so21722458edc.7 for ; Tue, 18 Oct 2022 11:10:58 -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=se3AV6vebDZ5YP2shntPND551GMkzS6L+QPXNqXiQ7o=; b=EiH1XPctTsH40jJoCVZZQ2IWCv/qUknaMjZUF6TgNR1NyiiSgP1FKDRwgS3YgvgusO KAuH+P3qhGPDvn9cHgJYQ3UTGZGWiJlnO/BPHA/hsY8Ri9HPyj/YX5Tr7/BV7dnuoHlQ AtOfDu0kXX/3QfwsV1hlmwVz9X+MeAL0TpbJIQ2awoBkxBa+iQkwbt4U+XoHEetoQ3J5 SnhRrjXJuyZiyawCxpUsB/X1SVmr2DP4dlXgGt39dKrXXpQnovJNwgHhtrEYxPAF9Yp5 zigl8L0Dn6HAeQDpPGtOBDWQmEvL6nC2ySfy50CgtLQmONHTErp3JDAE9H2hq5yQ3prC 3mvg== 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=se3AV6vebDZ5YP2shntPND551GMkzS6L+QPXNqXiQ7o=; b=OX1IU61dl/YpJSFrq5FQOwPupjrFA3CjPb9hSpmlpcAYhzOZ3QU73Byg8F65BVkwa6 w73GdIOmVjra30r/EVr95wWpbs2WkTMl4J8PhSylGe5ritKahZTzXKn74bx7s4aMVOTy iACTXSNXE8Q3/Z4TZcDNR1vvLQWy4WFgmbWQEF1Tf+ehm+K5h66BFRY8DKWuzKKqfsOc XCLJtX0mVXq8ZNkKGVeLNYswBdbimtNrDHqqbIwbxiQTVwzKVrzwYwnILwivXXRv8roc E3tNE8h8LvzmmmIVDPK/NxuZ/LcCG5nJpscIjeDsZaqnl8LwMakz6k/dNSlbDFmHFlzo Fkmw== X-Gm-Message-State: ACrzQf2IE7Be8Htm1vqm1/LwLdME0iGzzL8/pOLhkhmZbT7fJV8Exz3m zke7y5mTlglSpzEzVFaIUTE= X-Google-Smtp-Source: AMsMyM555IpSQr3xQVjxZqzGIi4S+lkctx+n6jalt6F4k/WIUgkQUw6UHLeQ3jOaPacFX26PYZk0HA== X-Received: by 2002:a05:6402:5193:b0:45c:e2c6:6f0e with SMTP id q19-20020a056402519300b0045ce2c66f0emr3820266edd.29.1666116657449; Tue, 18 Oct 2022 11:10:57 -0700 (PDT) Received: from pc638.lan ([155.137.26.201]) by smtp.gmail.com with ESMTPSA id c1-20020a17090618a100b007877ad05b32sm7739302ejf.208.2022.10.18.11.10.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Oct 2022 11:10:56 -0700 (PDT) From: "Uladzislau Rezki (Sony)" To: Andrew Morton Cc: linux-mm@kvack.org, LKML , Christoph Hellwig , Matthew Wilcox , Nicholas Piggin , Steven Rostedt , Uladzislau Rezki , Oleksiy Avramchenko Subject: [PATCH v2 1/7] mm: vmalloc: Add alloc_vmap_area trace event Date: Tue, 18 Oct 2022 20:10:47 +0200 Message-Id: <20221018181053.434508-2-urezki@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221018181053.434508-1-urezki@gmail.com> References: <20221018181053.434508-1-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" It is for a debug purpose and for validation of passed parameters. Signed-off-by: Uladzislau Rezki (Sony) Reviewed-by: Christoph Hellwig --- include/trace/events/vmalloc.h | 56 ++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 include/trace/events/vmalloc.h diff --git a/include/trace/events/vmalloc.h b/include/trace/events/vmalloc.h new file mode 100644 index 000000000000..39fbd77c91e7 --- /dev/null +++ b/include/trace/events/vmalloc.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM vmalloc + +#if !defined(_TRACE_VMALLOC_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_VMALLOC_H + +#include + +/** + * alloc_vmap_area - called when a new vmap allocation occurs + * @addr: an allocated address + * @size: a requested size + * @align: a requested alignment + * @vstart: a requested start range + * @vend: a requested end range + * @failed: an allocation failed or not + * + * This event is used for a debug purpose, it can give an extra + * information for a developer about how often it occurs and which + * parameters are passed for further validation. + */ +TRACE_EVENT(alloc_vmap_area, + + TP_PROTO(unsigned long addr, unsigned long size, unsigned long align, + unsigned long vstart, unsigned long vend, int failed), + + TP_ARGS(addr, size, align, vstart, vend, failed), + + TP_STRUCT__entry( + __field(unsigned long, addr) + __field(unsigned long, size) + __field(unsigned long, align) + __field(unsigned long, vstart) + __field(unsigned long, vend) + __field(int, failed) + ), + + TP_fast_assign( + __entry->addr =3D addr; + __entry->size =3D size; + __entry->align =3D align; + __entry->vstart =3D vstart; + __entry->vend =3D vend; + __entry->failed =3D failed; + ), + + TP_printk("va_start: %lu size=3D%lu align=3D%lu vstart=3D0x%lx vend=3D0x%= lx failed=3D%d", + __entry->addr, __entry->size, __entry->align, + __entry->vstart, __entry->vend, __entry->failed) +); + +#endif /* _TRACE_VMALLOC_H */ + +/* This part must be outside protection */ +#include --=20 2.30.2