diff mbox series

[071/200] mm: move lruvec stats update functions to vmstat.h

Message ID 20201215030714.sY4TR2x6z%akpm@linux-foundation.org (mailing list archive)
State New, archived
Headers show
Series [001/200] kthread: add kthread_work tracepoints | expand

Commit Message

Andrew Morton Dec. 15, 2020, 3:07 a.m. UTC 
From: Shakeel Butt <shakeelb@google.com>
Subject: mm: move lruvec stats update functions to vmstat.h

Patch series "memcg: add pagetable comsumption to memory.stat", v2.

Many workloads consumes significant amount of memory in pagetables.  One
specific use-case is the user space network driver which mmaps the
application memory to provide zero copy transfer.  This driver can consume
a large amount memory in page tables.  This patch series exposes the
pagetable comsumption for each memory cgroup.


This patch (of 2):

This does not change any functionality and only move the functions which
update the lruvec stats to vmstat.h from memcontrol.h.  The main reason
for this patch is to be able to use these functions in the page table
contructor function which is defined in mm.h and we can not include the
memcontrol.h in that file.  Also this is a better place for this interface
in general.  The lruvec abstraction, while invented for memcg, isn't
specific to memcg at all.

Link: https://lkml.kernel.org/r/20201130212541.2781790-2-shakeelb@google.com
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/memcontrol.h |  111 -----------------------------------
 include/linux/vmstat.h     |  104 ++++++++++++++++++++++++++++++++
 mm/memcontrol.c            |   17 +++++
 3 files changed, 121 insertions(+), 111 deletions(-)
diff mbox series

Patch

--- a/include/linux/memcontrol.h~mm-move-lruvec-stats-update-functions-to-vmstath
+++ a/include/linux/memcontrol.h
@@ -786,8 +786,6 @@  static inline unsigned long lruvec_page_
 
 void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx,
 			      int val);
-void __mod_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx,
-			int val);
 void __mod_lruvec_kmem_state(void *p, enum node_stat_item idx, int val);
 
 static inline void mod_lruvec_kmem_state(void *p, enum node_stat_item idx,
@@ -810,43 +808,6 @@  static inline void mod_memcg_lruvec_stat
 	local_irq_restore(flags);
 }
 
-static inline void mod_lruvec_state(struct lruvec *lruvec,
-				    enum node_stat_item idx, int val)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	__mod_lruvec_state(lruvec, idx, val);
-	local_irq_restore(flags);
-}
-
-static inline void __mod_lruvec_page_state(struct page *page,
-					   enum node_stat_item idx, int val)
-{
-	struct page *head = compound_head(page); /* rmap on tail pages */
-	pg_data_t *pgdat = page_pgdat(page);
-	struct lruvec *lruvec;
-
-	/* Untracked pages have no memcg, no lruvec. Update only the node */
-	if (!head->mem_cgroup) {
-		__mod_node_page_state(pgdat, idx, val);
-		return;
-	}
-
-	lruvec = mem_cgroup_lruvec(head->mem_cgroup, pgdat);
-	__mod_lruvec_state(lruvec, idx, val);
-}
-
-static inline void mod_lruvec_page_state(struct page *page,
-					 enum node_stat_item idx, int val)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	__mod_lruvec_page_state(page, idx, val);
-	local_irq_restore(flags);
-}
-
 unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order,
 						gfp_t gfp_mask,
 						unsigned long *total_scanned);
@@ -1205,30 +1166,6 @@  static inline void __mod_memcg_lruvec_st
 {
 }
 
-static inline void __mod_lruvec_state(struct lruvec *lruvec,
-				      enum node_stat_item idx, int val)
-{
-	__mod_node_page_state(lruvec_pgdat(lruvec), idx, val);
-}
-
-static inline void mod_lruvec_state(struct lruvec *lruvec,
-				    enum node_stat_item idx, int val)
-{
-	mod_node_page_state(lruvec_pgdat(lruvec), idx, val);
-}
-
-static inline void __mod_lruvec_page_state(struct page *page,
-					   enum node_stat_item idx, int val)
-{
-	__mod_node_page_state(page_pgdat(page), idx, val);
-}
-
-static inline void mod_lruvec_page_state(struct page *page,
-					 enum node_stat_item idx, int val)
-{
-	mod_node_page_state(page_pgdat(page), idx, val);
-}
-
 static inline void __mod_lruvec_kmem_state(void *p, enum node_stat_item idx,
 					   int val)
 {
@@ -1308,30 +1245,6 @@  static inline void __dec_memcg_page_stat
 	__mod_memcg_page_state(page, idx, -1);
 }
 
-static inline void __inc_lruvec_state(struct lruvec *lruvec,
-				      enum node_stat_item idx)
-{
-	__mod_lruvec_state(lruvec, idx, 1);
-}
-
-static inline void __dec_lruvec_state(struct lruvec *lruvec,
-				      enum node_stat_item idx)
-{
-	__mod_lruvec_state(lruvec, idx, -1);
-}
-
-static inline void __inc_lruvec_page_state(struct page *page,
-					   enum node_stat_item idx)
-{
-	__mod_lruvec_page_state(page, idx, 1);
-}
-
-static inline void __dec_lruvec_page_state(struct page *page,
-					   enum node_stat_item idx)
-{
-	__mod_lruvec_page_state(page, idx, -1);
-}
-
 static inline void __inc_lruvec_kmem_state(void *p, enum node_stat_item idx)
 {
 	__mod_lruvec_kmem_state(p, idx, 1);
@@ -1370,30 +1283,6 @@  static inline void dec_memcg_page_state(
 	mod_memcg_page_state(page, idx, -1);
 }
 
-static inline void inc_lruvec_state(struct lruvec *lruvec,
-				    enum node_stat_item idx)
-{
-	mod_lruvec_state(lruvec, idx, 1);
-}
-
-static inline void dec_lruvec_state(struct lruvec *lruvec,
-				    enum node_stat_item idx)
-{
-	mod_lruvec_state(lruvec, idx, -1);
-}
-
-static inline void inc_lruvec_page_state(struct page *page,
-					 enum node_stat_item idx)
-{
-	mod_lruvec_page_state(page, idx, 1);
-}
-
-static inline void dec_lruvec_page_state(struct page *page,
-					 enum node_stat_item idx)
-{
-	mod_lruvec_page_state(page, idx, -1);
-}
-
 static inline struct lruvec *parent_lruvec(struct lruvec *lruvec)
 {
 	struct mem_cgroup *memcg;
--- a/include/linux/vmstat.h~mm-move-lruvec-stats-update-functions-to-vmstath
+++ a/include/linux/vmstat.h
@@ -450,4 +450,108 @@  static inline const char *vm_event_name(
 }
 #endif /* CONFIG_VM_EVENT_COUNTERS || CONFIG_MEMCG */
 
+#ifdef CONFIG_MEMCG
+
+void __mod_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx,
+			int val);
+
+static inline void mod_lruvec_state(struct lruvec *lruvec,
+				    enum node_stat_item idx, int val)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	__mod_lruvec_state(lruvec, idx, val);
+	local_irq_restore(flags);
+}
+
+void __mod_lruvec_page_state(struct page *page,
+			     enum node_stat_item idx, int val);
+
+static inline void mod_lruvec_page_state(struct page *page,
+					 enum node_stat_item idx, int val)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	__mod_lruvec_page_state(page, idx, val);
+	local_irq_restore(flags);
+}
+
+#else
+
+static inline void __mod_lruvec_state(struct lruvec *lruvec,
+				      enum node_stat_item idx, int val)
+{
+	__mod_node_page_state(lruvec_pgdat(lruvec), idx, val);
+}
+
+static inline void mod_lruvec_state(struct lruvec *lruvec,
+				    enum node_stat_item idx, int val)
+{
+	mod_node_page_state(lruvec_pgdat(lruvec), idx, val);
+}
+
+static inline void __mod_lruvec_page_state(struct page *page,
+					   enum node_stat_item idx, int val)
+{
+	__mod_node_page_state(page_pgdat(page), idx, val);
+}
+
+static inline void mod_lruvec_page_state(struct page *page,
+					 enum node_stat_item idx, int val)
+{
+	mod_node_page_state(page_pgdat(page), idx, val);
+}
+
+#endif /* CONFIG_MEMCG */
+
+static inline void __inc_lruvec_state(struct lruvec *lruvec,
+				      enum node_stat_item idx)
+{
+	__mod_lruvec_state(lruvec, idx, 1);
+}
+
+static inline void __dec_lruvec_state(struct lruvec *lruvec,
+				      enum node_stat_item idx)
+{
+	__mod_lruvec_state(lruvec, idx, -1);
+}
+
+static inline void __inc_lruvec_page_state(struct page *page,
+					   enum node_stat_item idx)
+{
+	__mod_lruvec_page_state(page, idx, 1);
+}
+
+static inline void __dec_lruvec_page_state(struct page *page,
+					   enum node_stat_item idx)
+{
+	__mod_lruvec_page_state(page, idx, -1);
+}
+
+static inline void inc_lruvec_state(struct lruvec *lruvec,
+				    enum node_stat_item idx)
+{
+	mod_lruvec_state(lruvec, idx, 1);
+}
+
+static inline void dec_lruvec_state(struct lruvec *lruvec,
+				    enum node_stat_item idx)
+{
+	mod_lruvec_state(lruvec, idx, -1);
+}
+
+static inline void inc_lruvec_page_state(struct page *page,
+					 enum node_stat_item idx)
+{
+	mod_lruvec_page_state(page, idx, 1);
+}
+
+static inline void dec_lruvec_page_state(struct page *page,
+					 enum node_stat_item idx)
+{
+	mod_lruvec_page_state(page, idx, -1);
+}
+
 #endif /* _LINUX_VMSTAT_H */
--- a/mm/memcontrol.c~mm-move-lruvec-stats-update-functions-to-vmstath
+++ a/mm/memcontrol.c
@@ -853,6 +853,23 @@  void __mod_lruvec_state(struct lruvec *l
 		__mod_memcg_lruvec_state(lruvec, idx, val);
 }
 
+void __mod_lruvec_page_state(struct page *page, enum node_stat_item idx,
+			     int val)
+{
+	struct page *head = compound_head(page); /* rmap on tail pages */
+	pg_data_t *pgdat = page_pgdat(page);
+	struct lruvec *lruvec;
+
+	/* Untracked pages have no memcg, no lruvec. Update only the node */
+	if (!head->mem_cgroup) {
+		__mod_node_page_state(pgdat, idx, val);
+		return;
+	}
+
+	lruvec = mem_cgroup_lruvec(head->mem_cgroup, pgdat);
+	__mod_lruvec_state(lruvec, idx, val);
+}
+
 void __mod_lruvec_kmem_state(void *p, enum node_stat_item idx, int val)
 {
 	pg_data_t *pgdat = page_pgdat(virt_to_page(p));