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From: Muchun Song <songmuchun@bytedance.com>
To: gregkh@linuxfoundation.org, rafael@kernel.org,
	adobriyan@gmail.com, akpm@linux-foundation.org,
	hannes@cmpxchg.org, mhocko@kernel.org, vdavydov.dev@gmail.com,
	hughd@google.com, will@kernel.org, guro@fb.com, rppt@kernel.org,
	tglx@linutronix.de, esyr@redhat.com, peterx@redhat.com,
	krisman@collabora.com, surenb@google.com, avagin@openvz.org,
	elver@google.com, rdunlap@infradead.org, iamjoonsoo.kim@lge.com
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-mm@kvack.org, cgroups@vger.kernel.org,
	Muchun Song <songmuchun@bytedance.com>
Subject: [PATCH 6/9] mm: memcontrol: convert NR_SHMEM_THPS account to pages
Date: Sat,  5 Dec 2020 21:02:21 +0800	[thread overview]
Message-ID: <20201205130224.81607-7-songmuchun@bytedance.com> (raw)
In-Reply-To: <20201205130224.81607-1-songmuchun@bytedance.com>

Convert NR_SHMEM_THPS account to pages

Signed-off-by: Muchun Song <songmuchun@bytedance.com>
---
 drivers/base/node.c |  3 +--
 fs/proc/meminfo.c   |  2 +-
 mm/filemap.c        |  2 +-
 mm/huge_memory.c    |  3 ++-
 mm/khugepaged.c     |  2 +-
 mm/memcontrol.c     | 26 ++------------------------
 mm/page_alloc.c     |  2 +-
 mm/shmem.c          |  3 ++-
 8 files changed, 11 insertions(+), 32 deletions(-)

diff --git a/drivers/base/node.c b/drivers/base/node.c
index f6a9521bbcf8..a64f9c5484a0 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -462,8 +462,7 @@ static ssize_t node_read_meminfo(struct device *dev,
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 			     ,
 			     nid, K(node_page_state(pgdat, NR_ANON_THPS)),
-			     nid, K(node_page_state(pgdat, NR_SHMEM_THPS) *
-				    HPAGE_PMD_NR),
+			     nid, K(node_page_state(pgdat, NR_SHMEM_THPS)),
 			     nid, K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED) *
 				    HPAGE_PMD_NR),
 			     nid, K(node_page_state(pgdat, NR_FILE_THPS)),
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 9b2cb770326e..574779b6e48c 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -131,7 +131,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 	show_val_kb(m, "AnonHugePages:  ",
 		    global_node_page_state(NR_ANON_THPS));
 	show_val_kb(m, "ShmemHugePages: ",
-		    global_node_page_state(NR_SHMEM_THPS) * HPAGE_PMD_NR);
+		    global_node_page_state(NR_SHMEM_THPS));
 	show_val_kb(m, "ShmemPmdMapped: ",
 		    global_node_page_state(NR_SHMEM_PMDMAPPED) * HPAGE_PMD_NR);
 	show_val_kb(m, "FileHugePages:  ",
diff --git a/mm/filemap.c b/mm/filemap.c
index c4dcb1144883..5fdefbbc1bc2 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -204,7 +204,7 @@ static void unaccount_page_cache_page(struct address_space *mapping,
 	if (PageSwapBacked(page)) {
 		__mod_lruvec_page_state(page, NR_SHMEM, -nr);
 		if (PageTransHuge(page))
-			__dec_lruvec_page_state(page, NR_SHMEM_THPS);
+			__mod_lruvec_page_state(page, NR_SHMEM_THPS, -HPAGE_PMD_NR);
 	} else if (PageTransHuge(page)) {
 		__mod_lruvec_page_state(page, NR_FILE_THPS, -HPAGE_PMD_NR);
 		filemap_nr_thps_dec(mapping);
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 37840bdeaad0..0e8541bd9f50 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2746,7 +2746,8 @@ int split_huge_page_to_list(struct page *page, struct list_head *list)
 		spin_unlock(&ds_queue->split_queue_lock);
 		if (mapping) {
 			if (PageSwapBacked(head))
-				__dec_lruvec_page_state(head, NR_SHMEM_THPS);
+				__mod_lruvec_page_state(head, NR_SHMEM_THPS,
+							-HPAGE_PMD_NR);
 			else
 				__mod_lruvec_page_state(head, NR_FILE_THPS,
 							-HPAGE_PMD_NR);
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 1e1ced2208d0..4fe79ccfc312 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1857,7 +1857,7 @@ static void collapse_file(struct mm_struct *mm,
 	}
 
 	if (is_shmem)
-		__inc_lruvec_page_state(new_page, NR_SHMEM_THPS);
+		__mod_lruvec_page_state(new_page, NR_SHMEM_THPS, HPAGE_PMD_NR);
 	else {
 		__mod_lruvec_page_state(new_page, NR_FILE_THPS, HPAGE_PMD_NR);
 		filemap_nr_thps_inc(mapping);
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index dce76dddac61..48d70c1ad301 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1497,7 +1497,7 @@ struct memory_stat {
 	unsigned int idx;
 };
 
-static struct memory_stat memory_stats[] = {
+static const struct memory_stat memory_stats[] = {
 	{ "anon", PAGE_SIZE, NR_ANON_MAPPED },
 	{ "file", PAGE_SIZE, NR_FILE_PAGES },
 	{ "kernel_stack", 1, NR_KERNEL_STACK_B },
@@ -1508,14 +1508,9 @@ static struct memory_stat memory_stats[] = {
 	{ "file_dirty", PAGE_SIZE, NR_FILE_DIRTY },
 	{ "file_writeback", PAGE_SIZE, NR_WRITEBACK },
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-	/*
-	 * The ratio will be initialized in memory_stats_init(). Because
-	 * on some architectures, the macro of HPAGE_PMD_SIZE is not
-	 * constant(e.g. powerpc).
-	 */
 	{ "anon_thp", PAGE_SIZE, NR_ANON_THPS },
 	{ "file_thp", PAGE_SIZE, NR_FILE_THPS },
-	{ "shmem_thp", 0, NR_SHMEM_THPS },
+	{ "shmem_thp", PAGE_SIZE, NR_SHMEM_THPS },
 #endif
 	{ "inactive_anon", PAGE_SIZE, NR_INACTIVE_ANON },
 	{ "active_anon", PAGE_SIZE, NR_ACTIVE_ANON },
@@ -1540,23 +1535,6 @@ static struct memory_stat memory_stats[] = {
 	{ "workingset_nodereclaim", 1, WORKINGSET_NODERECLAIM },
 };
 
-static int __init memory_stats_init(void)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(memory_stats); i++) {
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-		if (memory_stats[i].idx == NR_SHMEM_THPS)
-			memory_stats[i].ratio = HPAGE_PMD_SIZE;
-#endif
-		VM_BUG_ON(!memory_stats[i].ratio);
-		VM_BUG_ON(memory_stats[i].idx >= MEMCG_NR_STAT);
-	}
-
-	return 0;
-}
-pure_initcall(memory_stats_init);
-
 static char *memory_stat_format(struct mem_cgroup *memcg)
 {
 	struct seq_buf s;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index fabdbb340806..8fb9f3d38b67 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5567,7 +5567,7 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask)
 			K(node_page_state(pgdat, NR_WRITEBACK)),
 			K(node_page_state(pgdat, NR_SHMEM)),
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-			K(node_page_state(pgdat, NR_SHMEM_THPS) * HPAGE_PMD_NR),
+			K(node_page_state(pgdat, NR_SHMEM_THPS)),
 			K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED)
 					* HPAGE_PMD_NR),
 			K(node_page_state(pgdat, NR_ANON_THPS)),
diff --git a/mm/shmem.c b/mm/shmem.c
index 5da4f1a3e663..ea5d8c9ccb5b 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -713,7 +713,8 @@ static int shmem_add_to_page_cache(struct page *page,
 		}
 		if (PageTransHuge(page)) {
 			count_vm_event(THP_FILE_ALLOC);
-			__inc_lruvec_page_state(page, NR_SHMEM_THPS);
+			__mod_lruvec_page_state(page, NR_SHMEM_THPS,
+						HPAGE_PMD_NR);
 		}
 		mapping->nrpages += nr;
 		__mod_lruvec_page_state(page, NR_FILE_PAGES, nr);
-- 
2.11.0


  parent reply	other threads:[~2020-12-05 18:34 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-05 13:02 [PATCH 0/9] Convert all THP vmstat counters to pages Muchun Song
2020-12-05 13:02 ` [PATCH 1/9] mm: vmstat: fix stat_threshold for NR_KERNEL_STACK_KB Muchun Song
2020-12-05 13:02 ` [PATCH 2/9] mm: memcontrol: fix NR_ANON_THPS account Muchun Song
2020-12-05 13:02 ` [PATCH 3/9] mm: memcontrol: convert kernel stack account to byte-sized Muchun Song
2020-12-05 14:10   ` Greg KH
2020-12-05 13:02 ` [PATCH 4/9] mm: memcontrol: convert NR_ANON_THPS account to pages Muchun Song
2020-12-05 13:02 ` [PATCH 5/9] mm: memcontrol: convert NR_FILE_THPS " Muchun Song
2020-12-05 14:10   ` Greg KH
2020-12-05 15:29     ` [External] " Muchun Song
2020-12-05 15:32       ` Greg KH
2020-12-05 15:39         ` Muchun Song
2020-12-05 16:33           ` Greg KH
2020-12-05 16:52             ` Muchun Song
2020-12-05 17:06               ` Greg KH
2020-12-05 13:02 ` Muchun Song [this message]
2020-12-05 13:02 ` [PATCH 7/9] mm: memcontrol: convert NR_SHMEM_PMDMAPPED " Muchun Song
2020-12-05 13:02 ` [PATCH 8/9] mm: memcontrol: convert NR_FILE_PMDMAPPED " Muchun Song
2020-12-05 13:02 ` [PATCH 9/9] mm: memcontrol: make the slab calculation consistent Muchun Song
2020-12-06  8:22 [PATCH v2 00/12] Convert all vmstat counters to pages or bytes Muchun Song
2020-12-06  8:23 ` [PATCH 6/9] mm: memcontrol: convert NR_SHMEM_THPS account to pages Muchun Song

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