From nobody Sat Oct 4 08:05:17 2025 Received: from mail-pl1-f180.google.com (mail-pl1-f180.google.com [209.85.214.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0C0332D3EEE for ; Tue, 19 Aug 2025 03:27:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.180 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755574023; cv=none; b=iwzrxcnWC/kWaj0rqKd7RmQRsPBl9iJ2Rz6o/K4Sx7vkR4FYWM+49Dn6xe3aK1w1Zz0Pir1f6ocf7AhdDET1+RL8SJ8TH+jRauFb8PZXbzQnJ7W4f4pLV7dWvDOvsxBeW/5YlXVGBFstQF0gHRnHwoW3BJlyPfYOVFNTUHBB9GY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755574023; c=relaxed/simple; bh=YfJYeNuK5s6n+6K9DDdIvhqVIE3tNH0UjNo9blGT8Rk=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=ipaRFpooc9CQwI6hnOB5CbA/Z3Fr/gz1VM/1W/v+BQX8AuOoC6QRm8bCE2WNWwC1RUwvEXVtVvqB33uRqvKNY/CFNjkKHMH97I8nzEP0VhKgBOKRCXD08l5sHo/eB5CNOMq6dWzdlGAHlMrMYBPHbmqzK7jSib0FBU9VFuasa+c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ZzIz/FRu; arc=none smtp.client-ip=209.85.214.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZzIz/FRu" Received: by mail-pl1-f180.google.com with SMTP id d9443c01a7336-244580536efso33746925ad.1 for ; Mon, 18 Aug 2025 20:27:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1755574021; x=1756178821; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=vr68yBZi3TFfbnXKqi+esYUOPsHcYPZ3pVlLEo5gGLw=; b=ZzIz/FRuuKKPXVqpzKcFFcYmHsAAl56spvGbzCnKOdhtcaPbaNFjieTJCFa69i40Gy myucmdQcgYhJ1QP2UqAhiVxrnlJNnjFzxGp4vbrJP/RKCeNsSS+FvCRoCGsRDXbN13dr 0hEmqXJ/cRYEHG0gETdzLIckvCgrUNKEFNAov5XyaIijke1SUvrX+CmB6ADuq9ulqBpY d8TNxDghJ4poQUF3c3K6BfIJnSD3FJwN842Q/sXUO8v0dsMDq+MwTtZ5DV2tISmnjgqg sPBGNe/HVGDmpAVxy/LmBYx09KeUPeo3tEtK243IZjdH9BaiokiTXXl2MF5zEpUyx4BQ CxpQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755574021; x=1756178821; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=vr68yBZi3TFfbnXKqi+esYUOPsHcYPZ3pVlLEo5gGLw=; b=v3vv3tw/fDjqJi/cY2XDzQWAFTV82hYZg8R11o4lTix34JC1IOXovDeg1xZGLvWC5F 7RfxnVMLqF3QQzCymiCFHerb8N8SjkMhvLOPjM1wci4LADc/s6185QKsbFj6la9sfENR I5afwLUG9i5CQwLH5hUF89Wi4nVM+V241v40J/HFFd6Ez1lq5oE/eW9s0HAZsAoINV3E t3OCoPp7Sy876Cy0VsObkeXMsbKmz6z/usoxJaYnFypV0Qas6riL+W2pVaZFDzWrzZo1 I4tsEAgSy07SgXNAu7wlb8K86KG6iWk2xJgauT2GTTROSieBZbkvzAvJCV77RByfcy+M H99w== X-Forwarded-Encrypted: i=1; AJvYcCXKuvTqvGxuPA+0jsDoG3ITLppxFeC278rp/Q1rPC6+xqP5yD5Ri3SO60AHC5GPRAbOn2jWx3lMG8OCIPk=@vger.kernel.org X-Gm-Message-State: AOJu0YwQxpH5Iib7cc49K4lOMXJ2VyWZmvmwCBGTu5GzsU8ElwYXf8D4 nLE76UXT45VBnzSrK5Jfof4iW4LArPwUCS7Vu7HaKprGuv6qyW9LRFvs X-Gm-Gg: ASbGnctArKY6PHakr9nxOqb5ckYAKoGfUQXN1NDuX7qdtGvq7TLU8/Cw8EsnkSNw1Sa oCi7+NEOQX7nnHT+XBC3kml3JbDH1TZsoWJc8XJHjJoCh+cdWi2GDEaYlGJwH/iOggChkZPzHqe GegDPhjJ/YIapBj0JoBPZUKyJuhPBqOqA6qHPs49XUA8q1fF6inaBNw2ZrySSYNCYI10kUf3uVp bbh1Vl6ToXMN+ZIZSZUK1odaR3vXxzdSL3O2kYcTp96V+eBsj4rOsttmE/28EP8xlyVeuOZyV/b xgLroA+9tlMSnS1Eq17IVeyxdxNs2jIrnWoD/9F9q2ILBHKfOFERl+NroEU3wLLTB+qza/ttDFb IxVQO5KCnk7AYCcXRowha1UI5DDeW7JqNdhDYvu3VqKX0PYperRseh2AYvoGLxK82OH2JsZkcyR A= X-Google-Smtp-Source: AGHT+IFwjWO9fZD3g8LIFOJO7X2Wija0jcyJGdc8SrAd/SCDg7XngqtnwRQL5pP5IA0IXoJApdAKBA== X-Received: by 2002:a17:903:3c4e:b0:23d:fa9a:80ac with SMTP id d9443c01a7336-245e031010dmr12452115ad.16.1755574021175; Mon, 18 Aug 2025 20:27:01 -0700 (PDT) Received: from bj-kjy-standalone-gaoxiang17.mioffice.cn ([43.224.245.244]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2446ca9d99csm93979715ad.24.2025.08.18.20.26.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Aug 2025 20:27:00 -0700 (PDT) From: Xiang Gao To: akpm@linux-foundation.org, david@redhat.com Cc: lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, gaoxiang17 Subject: [PATCH] mm/cma: add available_count and total count in trace_cma_alloc_start Date: Tue, 19 Aug 2025 11:26:54 +0800 Message-Id: <20250819032654.4345-1-gxxa03070307@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: gaoxiang17 This makes cma info more intuitive during debugging. Signed-off-by: gaoxiang17 Acked-by: David Hildenbrand --- include/trace/events/cma.h | 17 ++++++++++++----- mm/cma.c | 2 +- 2 files changed, 13 insertions(+), 6 deletions(-) diff --git a/include/trace/events/cma.h b/include/trace/events/cma.h index 383c09f583ac..fbe70008ffc7 100644 --- a/include/trace/events/cma.h +++ b/include/trace/events/cma.h @@ -38,25 +38,32 @@ TRACE_EVENT(cma_release, =20 TRACE_EVENT(cma_alloc_start, =20 - TP_PROTO(const char *name, unsigned long count, unsigned int align), + TP_PROTO(const char *name, unsigned long request_count, unsigned long ava= ilable_count, + unsigned long total_count, unsigned int align), =20 - TP_ARGS(name, count, align), + TP_ARGS(name, request_count, available_count, total_count, align), =20 TP_STRUCT__entry( __string(name, name) - __field(unsigned long, count) + __field(unsigned long, request_count) + __field(unsigned long, available_count) + __field(unsigned long, total_count) __field(unsigned int, align) ), =20 TP_fast_assign( __assign_str(name); - __entry->count =3D count; + __entry->count =3D request_count; + __entry->available_count =3D available_count; + __entry->total_count =3D total_count; __entry->align =3D align; ), =20 TP_printk("name=3D%s count=3D%lu align=3D%u", __get_str(name), - __entry->count, + __entry->request_count, + __entry->available_count, + __entry->total_count, __entry->align) ); =20 diff --git a/mm/cma.c b/mm/cma.c index 2ffa4befb99a..e56ec64d0567 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -864,7 +864,7 @@ static struct page *__cma_alloc(struct cma *cma, unsign= ed long count, if (!count) return page; =20 - trace_cma_alloc_start(name, count, align); + trace_cma_alloc_start(name, count, cma->available_count, cma->count, alig= n); =20 for (r =3D 0; r < cma->nranges; r++) { page =3D NULL; --=20 2.34.1