From nobody Wed Feb 11 05:14:40 2026 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 388ED1FC0EB for ; Mon, 24 Feb 2025 21:59:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740434370; cv=none; b=fg7XTFg+8P7cjQ0J5bfydTo844ZkSRZH+3plzplvuffyJqF5I8T40XpOnx0eX0LylNhPi8DlP2B/QM4ZsHl+Gy/o4Pj7noqUM+L/jRtSLd5rCfWQ2pp+QzucvrVzqJ181OdFIcQg226QMD/Y5RHMRiMYZbJoELxaZiNZ5IVIM5Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740434370; c=relaxed/simple; bh=rTjLKS6zi3fibnlja9uhJe1I0xGmSZ8izGxln042tOM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OU3hZxJTFjn3YBlWbRyMxXUL9+C9C5MkYtTQby5wG3BZBVgtlCh6JDhu81QGlfZvl6sR7BB/56zxRBvFYrByozQtlpYq5VcbZNzSIUJhMcRcSgZAUq5jss22c4QTpNWv783II9PuUqw5c0fHue6cKXZMiJ0t15/lX29QB3jY5WA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=XmxRY1Uj; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="XmxRY1Uj" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1740434368; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FtYeaQb9yjWDAqIxpFJ3I+Fkvf55cMTzB8yThSJBOoQ=; b=XmxRY1Ujax7TBC72QJcTKPD9O/V4SbeF2a25WfA2jhlE4bty1uInFV8TscR1oADSlj8I7O s7Y1lBdPU/f1HpilGS/vgk73gzi7xR6Uvvl5XFNaQXe7X0vqZBxyuf/RKeN/FbmmYM1Yf0 egnEdvAGaTYi8st4MDMspFERbbNsRug= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-462-JUYoEci3NZm2AUhf6yksEw-1; Mon, 24 Feb 2025 16:59:22 -0500 X-MC-Unique: JUYoEci3NZm2AUhf6yksEw-1 X-Mimecast-MFC-AGG-ID: JUYoEci3NZm2AUhf6yksEw_1740434361 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C20701800373; Mon, 24 Feb 2025 21:59:20 +0000 (UTC) Received: from fedora.redhat.com (unknown [10.22.65.50]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 6746D1800359; Mon, 24 Feb 2025 21:59:18 +0000 (UTC) From: Luiz Capitulino To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, david@redhat.com, yuzhao@google.com, pasha.tatashin@soleen.com Cc: akpm@linux-foundation.org, hannes@cmpxchg.org, muchun.song@linux.dev, luizcap@redhat.com Subject: [PATCH v2 1/4] mm: page_ext: make lookup_page_ext() public Date: Mon, 24 Feb 2025 16:59:05 -0500 Message-ID: In-Reply-To: References: 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 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Content-Type: text/plain; charset="utf-8" The next commit will use it. Signed-off-by: Luiz Capitulino --- include/linux/page_ext.h | 1 + mm/page_ext.c | 4 ++-- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/include/linux/page_ext.h b/include/linux/page_ext.h index e4b48a0dda244..d6fb891c51d1d 100644 --- a/include/linux/page_ext.h +++ b/include/linux/page_ext.h @@ -79,6 +79,7 @@ static inline void page_ext_init(void) =20 extern struct page_ext *page_ext_get(const struct page *page); extern void page_ext_put(struct page_ext *page_ext); +extern struct page_ext *lookup_page_ext(const struct page *page); =20 static inline void *page_ext_data(struct page_ext *page_ext, struct page_ext_operations *ops) diff --git a/mm/page_ext.c b/mm/page_ext.c index 641d93f6af4c1..23ad30597c05c 100644 --- a/mm/page_ext.c +++ b/mm/page_ext.c @@ -165,7 +165,7 @@ void __meminit pgdat_page_ext_init(struct pglist_data *= pgdat) pgdat->node_page_ext =3D NULL; } =20 -static struct page_ext *lookup_page_ext(const struct page *page) +struct page_ext *lookup_page_ext(const struct page *page) { unsigned long pfn =3D page_to_pfn(page); unsigned long index; @@ -245,7 +245,7 @@ static bool page_ext_invalid(struct page_ext *page_ext) return !page_ext || (((unsigned long)page_ext & PAGE_EXT_INVALID) =3D=3D = PAGE_EXT_INVALID); } =20 -static struct page_ext *lookup_page_ext(const struct page *page) +struct page_ext *lookup_page_ext(const struct page *page) { unsigned long pfn =3D page_to_pfn(page); struct mem_section *section =3D __pfn_to_section(pfn); --=20 2.48.1