From nobody Fri Dec 19 19:37:27 2025 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 83F474C85 for ; Wed, 12 Mar 2025 03:23:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741749841; cv=none; b=LK6zqZKNnMDtdTIi3pBVSBqBv+PSUEGGEvfVkAYTQq7QvdTFBibC5xjru2ZuIYtIyEAtgLp4m4ccsNUjzSXm853CKJfLPsSr5lktb+S39lTNvEjeNLH44P70zPano3BpYp0ts+pVsG5kfx/vNYOom/SKgwJ4qxVkUqzY0qBPjLM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741749841; c=relaxed/simple; bh=Y6SVdAECs2gi8txONHweoVGcYvHJ5BYU59n3WU71QcE=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=Wo4B5m190r1SFKwraqZiFZJV59mfkhX3zLvMDEjN+n9W0Y8xNZW5P+HgqmwNRADZMI0o6mTQyGbN5U6QH/6jKSS/DDJ1QkLA4oD0BGKJdu4Hw3LnMdbRzPw9sbOiJJ6nlQxjwAP9tmOvgGWASUVBrGHyXqxSMSTosBrVGkFMVHc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 6aae9be6fef111efa216b1d71e6e1362-20250312 X-CTIC-Tags: HR_CC_COUNT, HR_CC_DOMAIN_COUNT, HR_CC_NAME, HR_CC_NO_NAME, HR_CTE_8B HR_CTT_MISS, HR_DATE_H, HR_DATE_WKD, HR_DATE_ZONE, HR_FROM_NAME HR_SJ_DIGIT_LEN, HR_SJ_LANG, HR_SJ_LEN, HR_SJ_LETTER, HR_SJ_NOR_SYM HR_SJ_PHRASE, HR_SJ_PHRASE_LEN, HR_SJ_WS, HR_TO_COUNT, HR_TO_DOMAIN_COUNT HR_TO_NO_NAME, IP_TRUSTED, SRC_TRUSTED, DN_TRUSTED, SA_EXISTED SN_EXISTED, SPF_NOPASS, DKIM_NOPASS, DMARC_NOPASS, CIE_BAD CIE_GOOD_SPF, GTI_FG_BS, GTI_RG_INFO, GTI_C_BU, AMN_T1 AMN_GOOD, AMN_C_TI, AMN_C_BU, ABX_MISS_RDNS X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.45,REQID:11a57a68-89c1-4180-a672-f20610d247a7,IP:10, URL:0,TC:0,Content:0,EDM:25,RT:0,SF:-15,FILE:0,BULK:0,RULE:Release_Ham,ACT ION:release,TS:20 X-CID-INFO: VERSION:1.1.45,REQID:11a57a68-89c1-4180-a672-f20610d247a7,IP:10,UR L:0,TC:0,Content:0,EDM:25,RT:0,SF:-15,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:20 X-CID-META: VersionHash:6493067,CLOUDID:845d2dae1041badea67863155d66218d,BulkI D:250312112352OQV2NXMX,BulkQuantity:0,Recheck:0,SF:17|19|24|44|66|78|102,T C:nil,Content:0|50,EDM:5,IP:-2,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:n il,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_FSI,TF_CID_SPAM_SNR,TF_CID_SPAM_FAS,TF_CID_SPAM_FSD X-UUID: 6aae9be6fef111efa216b1d71e6e1362-20250312 X-User: liuye@kylinos.cn Received: from localhost.localdomain [(223.70.159.239)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 867985988; Wed, 12 Mar 2025 11:23:50 +0800 From: Liu Ye To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Liu Ye Subject: [PATCH v2] mm/debug: Fix minor issues in mm Date: Wed, 12 Mar 2025 11:23:44 +0800 Message-Id: <20250312032344.297946-1-liuye@kylinos.cn> X-Mailer: git-send-email 2.25.1 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" This patch includes several minor fixes: - Simplify compound page judgment conditions. - Missing a newline character at the end of the format string. Each change is independent. Signed-off-by: Liu Ye --- V2 : drop Fix out-of-bounds access in page_type_name(). --- --- mm/debug.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/mm/debug.c b/mm/debug.c index 8d2acf432385..544b2b05c567 100644 --- a/mm/debug.c +++ b/mm/debug.c @@ -132,15 +132,15 @@ static void __dump_page(const struct page *page) again: memcpy(&precise, page, sizeof(*page)); head =3D precise.compound_head; - if ((head & 1) =3D=3D 0) { + if (head & 1) { + foliop =3D (struct folio *)(head - 1); + idx =3D folio_page_idx(foliop, page); + } else { foliop =3D (struct folio *)&precise; idx =3D 0; if (!folio_test_large(foliop)) goto dump; foliop =3D (struct folio *)page; - } else { - foliop =3D (struct folio *)(head - 1); - idx =3D folio_page_idx(foliop, page); } =20 if (idx < MAX_FOLIO_NR_PAGES) { @@ -165,7 +165,7 @@ static void __dump_page(const struct page *page) void dump_page(const struct page *page, const char *reason) { if (PagePoisoned(page)) - pr_warn("page:%p is uninitialized and poisoned", page); + pr_warn("page:%p is uninitialized and poisoned\n", page); else __dump_page(page); if (reason) --=20 2.25.1