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From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 03/27] mm/vmstat: Add folio stat wrappers
Date: Mon, 18 Jan 2021 17:01:24 +0000
Message-ID: <20210118170148.3126186-4-willy@infradead.org> (raw)
In-Reply-To: <20210118170148.3126186-1-willy@infradead.org>

Allow page counters to be more readily modified by callers which have
a folio.  Name these wrappers with 'stat' instead of 'state' as requested
by Linus here:
https://lore.kernel.org/linux-mm/CAHk-=wj847SudR-kt+46fT3+xFFgiwpgThvm7DJWGdi4cVrbnQ@mail.gmail.com/

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 include/linux/vmstat.h | 60 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 773135fc6e19..3c3373c2c3c2 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -396,6 +396,54 @@ static inline void drain_zonestat(struct zone *zone,
 			struct per_cpu_pageset *pset) { }
 #endif		/* CONFIG_SMP */
 
+static inline
+void __inc_zone_folio_stat(struct folio *folio, enum zone_stat_item item)
+{
+	__inc_zone_page_state(&folio->page, item);
+}
+
+static inline
+void __dec_zone_folio_stat(struct folio *folio, enum zone_stat_item item)
+{
+	__dec_zone_page_state(&folio->page, item);
+}
+
+static inline
+void inc_zone_folio_stat(struct folio *folio, enum zone_stat_item item)
+{
+	inc_zone_page_state(&folio->page, item);
+}
+
+static inline
+void dec_zone_folio_stat(struct folio *folio, enum zone_stat_item item)
+{
+	dec_zone_page_state(&folio->page, item);
+}
+
+static inline
+void __inc_node_folio_stat(struct folio *folio, enum node_stat_item item)
+{
+	__inc_node_page_state(&folio->page, item);
+}
+
+static inline
+void __dec_node_folio_stat(struct folio *folio, enum node_stat_item item)
+{
+	__dec_node_page_state(&folio->page, item);
+}
+
+static inline
+void inc_node_folio_stat(struct folio *folio, enum node_stat_item item)
+{
+	inc_node_page_state(&folio->page, item);
+}
+
+static inline
+void dec_node_folio_stat(struct folio *folio, enum node_stat_item item)
+{
+	dec_node_page_state(&folio->page, item);
+}
+
 static inline void __mod_zone_freepage_state(struct zone *zone, int nr_pages,
 					     int migratetype)
 {
@@ -530,6 +578,18 @@ static inline void __dec_lruvec_page_state(struct page *page,
 	__mod_lruvec_page_state(page, idx, -1);
 }
 
+static inline void __inc_lruvec_folio_stat(struct folio *folio,
+					   enum node_stat_item idx)
+{
+	__mod_lruvec_page_state(&folio->page, idx, 1);
+}
+
+static inline void __dec_lruvec_folio_stat(struct folio *folio,
+					   enum node_stat_item idx)
+{
+	__mod_lruvec_page_state(&folio->page, idx, -1);
+}
+
 static inline void inc_lruvec_state(struct lruvec *lruvec,
 				    enum node_stat_item idx)
 {
-- 
2.29.2


  parent reply index

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-18 17:01 [PATCH v2 00/27] Page folios Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 01/27] mm: Introduce struct folio Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 02/27] mm: Add folio_pgdat Matthew Wilcox (Oracle)
2021-01-18 17:01 ` Matthew Wilcox (Oracle) [this message]
2021-01-18 17:01 ` [PATCH v2 04/27] mm/debug: Add VM_BUG_ON_FOLIO and VM_WARN_ON_ONCE_FOLIO Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 05/27] mm: Add put_folio Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 06/27] mm: Add get_folio Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 07/27] mm: Create FolioFlags Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 08/27] mm: Handle per-folio private data Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 09/27] mm: Add folio_index, folio_page and folio_contains Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 10/27] mm/util: Add folio_mapping and folio_file_mapping Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 11/27] mm/memcg: Add folio_memcg, lock_folio_memcg and unlock_folio_memcg Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 12/27] mm/memcg: Add mem_cgroup_folio_lruvec Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 13/27] mm: Add unlock_folio Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 14/27] mm: Add lock_folio Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 15/27] mm: Add lock_folio_killable Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 16/27] mm: Convert lock_page_async to lock_folio_async Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 17/27] mm/filemap: Convert lock_page_for_iocb to lock_folio_for_iocb Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 18/27] mm/filemap: Convert wait_on_page_locked_async to wait_on_folio_locked_async Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 19/27] mm/filemap: Convert end_page_writeback to end_folio_writeback Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 20/27] mm: Convert wait_on_page_bit to wait_on_folio_bit Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 21/27] mm: Add wait_for_stable_folio and wait_on_folio_writeback Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 22/27] mm: Add wait_on_folio_locked & wait_on_folio_locked_killable Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 23/27] mm: Convert lock_page_or_retry to lock_folio_or_retry Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 24/27] mm/filemap: Convert wake_up_page_bit to wake_up_folio_bit Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 25/27] mm: Convert test_clear_page_writeback to test_clear_folio_writeback Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 26/27] mm/filemap: Convert page wait queues to be folios Matthew Wilcox (Oracle)
2021-01-18 17:01 ` [PATCH v2 27/27] cachefiles: Switch to wait_page_key Matthew Wilcox (Oracle)

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