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 432A3C4332F for ; Mon, 17 Oct 2022 16:02:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230448AbiJQQCw (ORCPT ); Mon, 17 Oct 2022 12:02:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38544 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230153AbiJQQCo (ORCPT ); Mon, 17 Oct 2022 12:02:44 -0400 Received: from mail-ej1-x62d.google.com (mail-ej1-x62d.google.com [IPv6:2a00:1450:4864:20::62d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F189B6D843 for ; Mon, 17 Oct 2022 09:02:41 -0700 (PDT) Received: by mail-ej1-x62d.google.com with SMTP id d26so25960138eje.10 for ; Mon, 17 Oct 2022 09:02:41 -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=P/1RiMr1eJ0x+wK6LRLfk+CIs20GXMv9Cr5BUn6E+1A=; b=qxhJaPRp0C1CnLCFp02667sEh3nTRwKHTgeeTplt+G+mCrIlcs4hRfjfzFmtSMKS5B Ru4N2JJro5y1V+RBQElu0oUEWVc/iuDrkjsfJALvC3mui2/wFwWSeLu7KvUBCfH/QVbg e+8R4DsIoDD8jTjBvGL5JrrxB3mBMXM44W9pyDU+0ZKXgZs+Nqf/IlXKv5FNtW10hkJU LfLfrVSmU/MYA7xHhsFVYKKxpYoZ1y/v3S42Cpf0ciYRKHx9ghv8mTY1vcrxcBtXwOAx FqKtwhN3Jb5kDDN/U2PNa8GEdiND3I3a3Z/2TiJGEaIYyTMIhX8Su0Jvy6wC2TQ8XPdd SFbQ== 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=P/1RiMr1eJ0x+wK6LRLfk+CIs20GXMv9Cr5BUn6E+1A=; b=fpkfsEXOWxt8NnbqN21u8Wr9jBPB/4PdQk4izF8MDaH/RvzAetAjfOf9x73F5ReIX8 Z+2qWwOtygAgENZnysDRMhdmZq+JR+ZZCIEFdvjIYZ7d+BysbxtsLmqUrO56MVv2c8DD ruY7hRm8Qx7gjyfJrhF0eFEP2WzpiMDsl+0kvHuaDcfScnmn2vfLwMhCzSLNWEp5rf7A 5LLM3LpIKAKHfBUjQKdGGMN+YVIasWak87qIyAq5cFgkQpXuAyxNmJiaPyEn0Hk2UQTa BmV4K9kZXyWigWqSpuNaHipZjbfUivL51n3nqEvtzPriU8hEeApahNXMf+FIjy5kg+Yd /uCw== X-Gm-Message-State: ACrzQf3JqHoOOgHWQw7lk98ZTwmpwLyiux/jb2sORyP0JiNlbcL/mrbh lkTkS7BL0HdqQ0ZeS3kVnwU= X-Google-Smtp-Source: AMsMyM5oF/D+J68qyYf7OpinzoVRIca5njlKZiVt120+6mGZCZeIlXSoEubnaQQ/aKTMqvFacsOwCw== X-Received: by 2002:a17:906:ef8f:b0:78e:28e7:6c64 with SMTP id ze15-20020a170906ef8f00b0078e28e76c64mr9497023ejb.165.1666022560203; Mon, 17 Oct 2022 09:02:40 -0700 (PDT) Received: from pc638.lan ([155.137.26.201]) by smtp.gmail.com with ESMTPSA id g16-20020a170906539000b0073d5948855asm6389629ejo.1.2022.10.17.09.02.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Oct 2022 09:02:39 -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 Subject: [PATCH 2/7] mm: vmap: Add purge_vmap_area_lazy trace event Date: Mon, 17 Oct 2022 18:02:27 +0200 Message-Id: <20221017160233.16582-4-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" It is for debug purpose to track number of freed vmaps including a range it occurs on. To: Steven Rostedt Signed-off-by: Uladzislau Rezki (Sony) --- include/trace/events/vmap.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/include/trace/events/vmap.h b/include/trace/events/vmap.h index 504870d95a4e..2af2b84c6eb7 100644 --- a/include/trace/events/vmap.h +++ b/include/trace/events/vmap.h @@ -50,6 +50,39 @@ TRACE_EVENT(alloc_vmap_area, __entry->vstart, __entry->vend, __entry->failed) ); =20 +/** + * purge_vmap_area_lazy - called when vmap areas were lazily freed + * @start: purging start address + * @end: purging end address + * @npurged: numbed of purged vmap areas + * + * This event is used for a debug purpose. It gives some + * indication about start:end range and how many objects + * are released. + */ +TRACE_EVENT(purge_vmap_area_lazy, + + TP_PROTO(unsigned long start, unsigned long end, + unsigned int npurged), + + TP_ARGS(start, end, npurged), + + TP_STRUCT__entry( + __field(unsigned long, start) + __field(unsigned long, end) + __field(unsigned int, npurged) + ), + + TP_fast_assign( + __entry->start =3D start; + __entry->end =3D end; + __entry->npurged =3D npurged; + ), + + TP_printk("start=3D0x%lx end=3D0x%lx num_purged=3D%u", + __entry->start, __entry->end, __entry->npurged) +); + #endif /* _TRACE_VMAP_H */ =20 /* This part must be outside protection */ --=20 2.30.2