From nobody Fri Oct 3 00:00:52 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 91EBB1D5CE8 for ; Tue, 9 Sep 2025 07:48:37 +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=1757404122; cv=none; b=tES3tECGOTXnz+IEZVg6oVH1MTH79NH7NcU/8fMNfuc8NtxAaoPIKGaLZeoSg3iAQBWQagAsZE6jPRMY6kJiz/5WIrpO3AumCbsYOkyAglwNqUNdy+CMPs1xvX+a0V0j54BShK7cWL/VbfcFdkfC2aQTn1avmU1ZNwx/09IUIAI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757404122; c=relaxed/simple; bh=0TvMik+92sFdyhvEcEaf+VARkKvs2ijz/U0CNzz/MDg=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=KBVAoIQTZZHgY3Ugnx9k+K1t4hOD2BEinw+w42qFAwFu6gaeFwfaH4zo8+0/uWtBXLwIwvhJzYcYLdRzJ1qeVF0jo3eBWdDcdhhuqvkh204q5WoXunm3geJQalJjmRc0ba8R2HXLoIZ7ufCbS+qCcRkF989ZKAT6gUp8fvVCyC4= 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: 603b27588d5111f0b29709d653e92f7d-20250909 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_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_NAME IP_TRUSTED, SRC_TRUSTED, DN_TRUSTED, SA_EXISTED, SN_EXISTED SPF_NOPASS, DKIM_NOPASS, DMARC_NOPASS X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.45,REQID:c9d64b59-8547-4850-8971-4da55c312d9f,IP:10, URL:0,TC:0,Content:0,EDM:25,RT:0,SF:-5,FILE:0,BULK:0,RULE:Release_Ham,ACTI ON:release,TS:30 X-CID-INFO: VERSION:1.1.45,REQID:c9d64b59-8547-4850-8971-4da55c312d9f,IP:10,UR L:0,TC:0,Content:0,EDM:25,RT:0,SF:-5,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:30 X-CID-META: VersionHash:6493067,CLOUDID:de6a38db08b61df599d118a345fe75fa,BulkI D:250909154831ZXY1HHMU,BulkQuantity:0,Recheck:0,SF:19|24|38|44|66|72|78|10 2|850,TC:nil,Content:0|50,EDM:5,IP:-2,URL:0,File:nil,RT:nil,Bulk:nil,QS:ni l,BEC:nil,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,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_FSD,TF_CID_SPAM_FSI X-UUID: 603b27588d5111f0b29709d653e92f7d-20250909 X-User: husong@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 1128407; Tue, 09 Sep 2025 15:48:29 +0800 From: Hu Song To: Vlastimil Babka , Andrew Morton Cc: Hu Song , Christoph Lameter , David Rientjes , Roman Gushchin , Harry Yoo , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH] mm/slub: Use folio_nr_pages() in __free_slab() Date: Tue, 9 Sep 2025 15:48:11 +0800 Message-Id: <20250909074812.599030-1-husong@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" Use folio_nr_pages() helper instead of manual calculation (1 << order) for better code readability and maintainability. Signed-off-by: Hu Song --- mm/slub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index d257141896c9..eba25461641a 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2719,7 +2719,7 @@ static void __free_slab(struct kmem_cache *s, struct = slab *slab) { struct folio *folio =3D slab_folio(slab); int order =3D folio_order(folio); - int pages =3D 1 << order; + int pages =3D folio_nr_pages(folio); =20 __slab_clear_pfmemalloc(slab); folio->mapping =3D NULL; --=20 2.25.1