From nobody Fri Oct 3 14:44:01 2025 Received: from mail-ej1-f43.google.com (mail-ej1-f43.google.com [209.85.218.43]) (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 88A5C1D63E6 for ; Sun, 31 Aug 2025 09:39:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.43 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756633182; cv=none; b=m+gE0dCCFKtAk7VsKF7JR0r3uU6MlozmuQHYzZIAMlE/XNW8So2AEgcQN8i5JCAKgvELoK15VWB8mGuQIFPXYleoi/yGsjqwBKsu/7utSYlHm3dRN+nOssiXN+RZO4Yr5fN8/qWofAHopHF8sKk+xj4J9bMbO6mO0LhIXmukOJ4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756633182; c=relaxed/simple; bh=/Nm5XGhdzQkNpKwR7Ib3TKLhoGMiX2JymV2ELO5tYH4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nGQxSsVSNrokQMqN2Qj55TSndQNRAn2kRXyHPZ7egHD4zzObf+bai21ZHPYyKk8PTwAahX8teEXrfu1+GdMfHW1ijTVaYk0g0YYvLoSOvjeoaDubdGGPr/4Mql+bsu/RdOBfLYtCuTuT2DsgUI6KI70YeFl6XYjCzhkDEECa8kM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=ionos.com; spf=pass smtp.mailfrom=ionos.com; dkim=pass (2048-bit key) header.d=ionos.com header.i=@ionos.com header.b=RTVpPv6J; arc=none smtp.client-ip=209.85.218.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=ionos.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ionos.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ionos.com header.i=@ionos.com header.b="RTVpPv6J" Received: by mail-ej1-f43.google.com with SMTP id a640c23a62f3a-afcb7a8dd3dso480769866b.3 for ; Sun, 31 Aug 2025 02:39:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ionos.com; s=google; t=1756633179; x=1757237979; darn=vger.kernel.org; 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=agcUJTbetPLLC7T8VbmvLYEfBB6utcDRFF105PwkvnA=; b=RTVpPv6J/GXAFNjxWTXhYdfVw+SnRjQt0TZ6qoHbKRjLUrNU6i5bsj6td9FjU1+/Wp CcMZtviFpdPJFxyGIV96g4331+S2ZwqTo/EgXo5k28IMfxfqApD6rR+0NJLf/P2FZ8Ut Ilx2jX873YYFMHuu4EWDekqDW9VB59A7ZcuyK0nQ63AKzxqQOIHY1ofjhZEAecbmtJV+ 484npgBX/u1Llf1vwXck7rRZbM0DO7hn/6acR/TwfM7N0+vW3MV0XZud8V7MJl4MZKLV RNSYbL/2n+TezZ0FPnL003ZK4vDIcFkAp2SzWjI4zgJ8QHzR6xNrFjobxojPcBusB+1x u40A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1756633179; x=1757237979; 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=agcUJTbetPLLC7T8VbmvLYEfBB6utcDRFF105PwkvnA=; b=dov0FroMm22c1qjW/Uyfw8ExoUnmBcPeVDK1bY5tBGfsWis7uaJOR0XQlalu2dd3Uz T0eC78A6LjzLMdNTNxd6O+1iqGnxnJF5eSTTvBc5YF4A7ZPURHAUoxWpSQM6EyRZiop+ QkRLdrANTRm23B5i5EbTKwM7JqxGcLKrF8QkUyohE2vS9Hy7cqEvsNjAR1+3+gec/yoz qxD2yrJiL5ez/3KH86VMYPK0b7xMzk4x2V3t+dBUWkKdFe8+k3XgdWg2r4a0cYOxH8gf sMhFBwZOhykqtGjz/Ur6kqNouw1m2vlJPZxF4cKxhQPE6ivGCL3fsq9H8UU3bPMaE3eU snSw== X-Forwarded-Encrypted: i=1; AJvYcCVDNdv0LBFYtcW83QPFwLYv4oOTgx0+kQ+cpq7e3N5IQRbLjf/rHzf4uWyf0wUwEdBFdgo6lMzSayOqtiU=@vger.kernel.org X-Gm-Message-State: AOJu0YxFtQhv/gSYHJHHFdZPfxsNbmafSPuVG9NrHMnisWTOYq09Ssur 8C6HPdiMhbWdr93cqSi3fahpdM8vqmlvBn0O/HdfmuEZRAAvHIAvmV7bvk7h/MEFccISWfwNmAR mcbbi X-Gm-Gg: ASbGnctZpeVUvLd3NlLOdUzb4LAQqSofBTZ2vJ5WzAT5c0WWxLnGABWIX6Ij0TMcZWz bY4X2oeMQnzF7ivUd8iMQF1Y4bInzWk0FOzT4dStXJERQ1qIphWvKNfzbHCWHSeahWqhpdGz9HZ Lk4Xsq1K10DYOlQdyNaogKTf4j6p+BznOj5mvgZ0Ze2/6En57hq+M9lTlGHUe+EfkQYdQlLv7PW MSvXdVFGQU1W/K6Vm/KOeLg98cNapoHYBkFB6AHr2jmMDFvb5hbKh+MrQrzs2WYDZtk0UbSgupk HIpLzYk1eZGgJSdy4x8OvmYQgDEIF55LmmV0NXz27V+b+yWRM/EGEKOdEvyuNpeW7OEjQ2Xt9bv AO2+klGNQ2UL/sOX+LVL+ANY4c95KOFKxFdXJDRlLUGXUXTinU3s0PvAggjLmCiV5o2Gd5mOgGY HccuIzBbPjI2ZZ8MA9k+3aEzcX/W22rh70 X-Google-Smtp-Source: AGHT+IGOcaYq6pdvf8qss0FJ69VWFSUVu6c1gqKvRxFyz1rOmWyTevdbJuT1tri9g/lRb4gUoiv96w== X-Received: by 2002:a17:907:3d0c:b0:afe:c099:aea8 with SMTP id a640c23a62f3a-b01d8a266abmr378742166b.9.1756633178673; Sun, 31 Aug 2025 02:39:38 -0700 (PDT) Received: from raven.intern.cm-ag (p200300dc6f1d0f00023064fffe740809.dip0.t-ipconnect.de. [2003:dc:6f1d:f00:230:64ff:fe74:809]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-afefcbd8656sm597512566b.56.2025.08.31.02.39.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 31 Aug 2025 02:39:38 -0700 (PDT) From: Max Kellermann To: akpm@linux-foundation.org, david@redhat.com, axelrasmussen@google.com, yuanchu@google.com, willy@infradead.org, hughd@google.com, mhocko@suse.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, vishal.moola@gmail.com Cc: Max Kellermann Subject: [PATCH v2 03/12] include/mmzone.h: add `const` to lots of pointer parameters Date: Sun, 31 Aug 2025 11:39:09 +0200 Message-ID: <20250831093918.2815332-4-max.kellermann@ionos.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250831093918.2815332-1-max.kellermann@ionos.com> References: <20250831093918.2815332-1-max.kellermann@ionos.com> 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" For improved const-correctness. Signed-off-by: Max Kellermann Reviewed-by: Vishal Moola (Oracle) --- include/linux/mmzone.h | 42 +++++++++++++++++++++--------------------- 1 file changed, 21 insertions(+), 21 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index fe13ad175fed..7228f3231f37 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -1103,7 +1103,7 @@ static inline unsigned long promo_wmark_pages(const s= truct zone *z) return wmark_pages(z, WMARK_PROMO); } =20 -static inline unsigned long zone_managed_pages(struct zone *zone) +static inline unsigned long zone_managed_pages(const struct zone *const zo= ne) { return (unsigned long)atomic_long_read(&zone->managed_pages); } @@ -1127,12 +1127,12 @@ static inline bool zone_spans_pfn(const struct zone= *zone, unsigned long pfn) return zone->zone_start_pfn <=3D pfn && pfn < zone_end_pfn(zone); } =20 -static inline bool zone_is_initialized(struct zone *zone) +static inline bool zone_is_initialized(const struct zone *const zone) { return zone->initialized; } =20 -static inline bool zone_is_empty(struct zone *zone) +static inline bool zone_is_empty(const struct zone *const zone) { return zone->spanned_pages =3D=3D 0; } @@ -1272,7 +1272,7 @@ static inline bool folio_is_zone_movable(const struct= folio *folio) * Return true if [start_pfn, start_pfn + nr_pages) range has a non-empty * intersection with the given zone */ -static inline bool zone_intersects(struct zone *zone, +static inline bool zone_intersects(const struct zone *const zone, unsigned long start_pfn, unsigned long nr_pages) { if (zone_is_empty(zone)) @@ -1580,12 +1580,12 @@ static inline int local_memory_node(int node_id) { = return node_id; }; #define zone_idx(zone) ((zone) - (zone)->zone_pgdat->node_zones) =20 #ifdef CONFIG_ZONE_DEVICE -static inline bool zone_is_zone_device(struct zone *zone) +static inline bool zone_is_zone_device(const struct zone *const zone) { return zone_idx(zone) =3D=3D ZONE_DEVICE; } #else -static inline bool zone_is_zone_device(struct zone *zone) +static inline bool zone_is_zone_device(const struct zone *const zone) { return false; } @@ -1597,19 +1597,19 @@ static inline bool zone_is_zone_device(struct zone = *zone) * populated_zone(). If the whole zone is reserved then we can easily * end up with populated_zone() && !managed_zone(). */ -static inline bool managed_zone(struct zone *zone) +static inline bool managed_zone(const struct zone *const zone) { return zone_managed_pages(zone); } =20 /* Returns true if a zone has memory */ -static inline bool populated_zone(struct zone *zone) +static inline bool populated_zone(const struct zone *const zone) { return zone->present_pages; } =20 #ifdef CONFIG_NUMA -static inline int zone_to_nid(struct zone *zone) +static inline int zone_to_nid(const struct zone *const zone) { return zone->node; } @@ -1619,7 +1619,7 @@ static inline void zone_set_nid(struct zone *zone, in= t nid) zone->node =3D nid; } #else -static inline int zone_to_nid(struct zone *zone) +static inline int zone_to_nid(const struct zone *zone) { return 0; } @@ -1646,7 +1646,7 @@ static inline int is_highmem_idx(enum zone_type idx) * @zone: pointer to struct zone variable * Return: 1 for a highmem zone, 0 otherwise */ -static inline int is_highmem(struct zone *zone) +static inline int is_highmem(const struct zone *const zone) { return is_highmem_idx(zone_idx(zone)); } @@ -1712,12 +1712,12 @@ static inline struct zone *zonelist_zone(struct zon= eref *zoneref) return zoneref->zone; } =20 -static inline int zonelist_zone_idx(struct zoneref *zoneref) +static inline int zonelist_zone_idx(const struct zoneref *const zoneref) { return zoneref->zone_idx; } =20 -static inline int zonelist_node_idx(struct zoneref *zoneref) +static inline int zonelist_node_idx(const struct zoneref *const zoneref) { return zone_to_nid(zoneref->zone); } @@ -2020,7 +2020,7 @@ static inline struct page *__section_mem_map_addr(str= uct mem_section *section) return (struct page *)map; } =20 -static inline int present_section(struct mem_section *section) +static inline int present_section(const struct mem_section *const section) { return (section && (section->section_mem_map & SECTION_MARKED_PRESENT)); } @@ -2030,12 +2030,12 @@ static inline int present_section_nr(unsigned long = nr) return present_section(__nr_to_section(nr)); } =20 -static inline int valid_section(struct mem_section *section) +static inline int valid_section(const struct mem_section *const section) { return (section && (section->section_mem_map & SECTION_HAS_MEM_MAP)); } =20 -static inline int early_section(struct mem_section *section) +static inline int early_section(const struct mem_section *const section) { return (section && (section->section_mem_map & SECTION_IS_EARLY)); } @@ -2045,27 +2045,27 @@ static inline int valid_section_nr(unsigned long nr) return valid_section(__nr_to_section(nr)); } =20 -static inline int online_section(struct mem_section *section) +static inline int online_section(const struct mem_section *const section) { return (section && (section->section_mem_map & SECTION_IS_ONLINE)); } =20 #ifdef CONFIG_ZONE_DEVICE -static inline int online_device_section(struct mem_section *section) +static inline int online_device_section(const struct mem_section *const se= ction) { unsigned long flags =3D SECTION_IS_ONLINE | SECTION_TAINT_ZONE_DEVICE; =20 return section && ((section->section_mem_map & flags) =3D=3D flags); } #else -static inline int online_device_section(struct mem_section *section) +static inline int online_device_section(const struct mem_section *const se= ction) { return 0; } #endif =20 #ifdef CONFIG_SPARSEMEM_VMEMMAP_PREINIT -static inline int preinited_vmemmap_section(struct mem_section *section) +static inline int preinited_vmemmap_section(const struct mem_section *cons= t section) { return (section && (section->section_mem_map & SECTION_IS_VMEMMAP_PREINIT)); @@ -2075,7 +2075,7 @@ void sparse_vmemmap_init_nid_early(int nid); void sparse_vmemmap_init_nid_late(int nid); =20 #else -static inline int preinited_vmemmap_section(struct mem_section *section) +static inline int preinited_vmemmap_section(const struct mem_section *cons= t section) { return 0; } --=20 2.47.2