From nobody Tue Apr 7 15:54:02 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 DB58AC4332F for ; Mon, 17 Oct 2022 16:02:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230262AbiJQQCs (ORCPT ); Mon, 17 Oct 2022 12:02:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38470 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229980AbiJQQCl (ORCPT ); Mon, 17 Oct 2022 12:02:41 -0400 Received: from mail-ed1-x532.google.com (mail-ed1-x532.google.com [IPv6:2a00:1450:4864:20::532]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60B626D841 for ; Mon, 17 Oct 2022 09:02:40 -0700 (PDT) Received: by mail-ed1-x532.google.com with SMTP id u21so16713359edi.9 for ; Mon, 17 Oct 2022 09:02:40 -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=DLer6Af9yKSB5ehlJqsvjiavXklY9gP8YgB5+o0/x2C9g/bsjaDsVai9moAt1vqXpR gmwM1KoesEPNSUP55KIbw3TmwNkAO8zKzomWb6tfPyWGKUobzY7e3nTOjwhoCx46FPci T8q4RRP3HnXnk4gAgnJdu7gpX/NPRbk544624yw1zuJVNv61ZMumR2OFiWQsLqhAtljB juk/mi7Jiy9pn87anP15eEoDF2FWJOZZyLayMzxOciaDv2tiFNl6b4uBkbFj5KJnqOmr vVpAriTMlwiQyT1AqQe5Lfx2bggjR+L+0OlXbujEaP3SXIT21QBYWmL9+YGPAyOqU+90 zzlA== 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=XfOb/4hdU+SAF2aWhwb9uMW2x+/FiwmuYlHADc/lwSfw/IocYmkyRZyiDA+d68w19+ eEdxVetj7NIJ7Nd34yTIHvfCh01sBY7aw51sFlo9zrQ3ctNiMIWNKy2TUwNCtsnmqEI6 +RPsMxvxeQFCrpLR+XallV1kIaLWGwW1GIKOj575g+T/m1MFdTKv0JyYyH7XiYJcoLux uo9Q7F4X8HRl4vEkZ0mqjRQC5CknDLjBC5gE+Q9Kttbym+ERxuzlCdt08TQhgNIPuOTr ZEHrcj1u3XLmhjrPhSH0qz8sI9QOd90wCTVikWsktMv792tA7RkB7PV+l5hTRYx8xwGT 5vnQ== X-Gm-Message-State: ACrzQf0jqxcPjdq2qfUEeiztiI+kHfH8L2vTnJZdmwBg8JVkghDq583E Eu+iu6f/v3mPcKxRHeV4EoM= X-Google-Smtp-Source: AMsMyM7j6l6EW5hrjHaMWS0m06ylnM0/tLTszR1u9HVA9Id5jZFLJTLjoArgj3EMPX3y0vr6F9NWzg== X-Received: by 2002:aa7:dd45:0:b0:458:7474:1fbe with SMTP id o5-20020aa7dd45000000b0045874741fbemr10980661edw.334.1666022558782; Mon, 17 Oct 2022 09:02:38 -0700 (PDT) Received: from pc638.lan ([155.137.26.201]) by smtp.gmail.com with ESMTPSA id g16-20020a170906539000b0073d5948855asm6389629ejo.1.2022.10.17.09.02.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Oct 2022 09:02:38 -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 a purge_vmap_area_lazy trace event Date: Mon, 17 Oct 2022 18:02:26 +0200 Message-Id: <20221017160233.16582-3-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