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[PATCH 17/27] mm: Rename NR_ANON_PAGES to NR_ANON_MAPPED

From Mel Gorman <mgorman@techsingularity.net>
Newsgroups linux.kernel
Subject [PATCH 17/27] mm: Rename NR_ANON_PAGES to NR_ANON_MAPPED
Date 2016-06-21 16:30 +0200
Message-ID <rMuQF-6YC-7@gated-at.bofh.it> (permalink)
References <rMuGZ-6Vn-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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NR_FILE_PAGES  is the number of        file pages.
NR_FILE_MAPPED is the number of mapped file pages.
NR_ANON_PAGES  is the number of mapped anon pages.

This is unhelpful naming as it's easy to confuse NR_FILE_MAPPED and NR_ANON_PAGES for
mapped pages. This patch renames NR_ANON_PAGES so we have

NR_FILE_PAGES  is the number of        file pages.
NR_FILE_MAPPED is the number of mapped file pages.
NR_ANON_MAPPED is the number of mapped anon pages.

Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
---
 drivers/base/node.c    | 2 +-
 fs/proc/meminfo.c      | 2 +-
 include/linux/mmzone.h | 2 +-
 mm/migrate.c           | 2 +-
 mm/rmap.c              | 8 ++++----
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/base/node.c b/drivers/base/node.c
index 66aed68a0fdc..897b6bcb36be 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -120,7 +120,7 @@ static ssize_t node_read_meminfo(struct device *dev,
 		       nid, K(sum_zone_node_page_state(nid, NR_WRITEBACK)),
 		       nid, K(sum_zone_node_page_state(nid, NR_FILE_PAGES)),
 		       nid, K(node_page_state(pgdat, NR_FILE_MAPPED)),
-		       nid, K(node_page_state(pgdat, NR_ANON_PAGES)),
+		       nid, K(node_page_state(pgdat, NR_ANON_MAPPED)),
 		       nid, K(i.sharedram),
 		       nid, sum_zone_node_page_state(nid, NR_KERNEL_STACK) *
 				THREAD_SIZE / 1024,
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 54e039682ec9..076afb43fc56 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -138,7 +138,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 		K(i.freeswap),
 		K(global_page_state(NR_FILE_DIRTY)),
 		K(global_page_state(NR_WRITEBACK)),
-		K(global_node_page_state(NR_ANON_PAGES)),
+		K(global_node_page_state(NR_ANON_MAPPED)),
 		K(global_node_page_state(NR_FILE_MAPPED)),
 		K(i.sharedram),
 		K(global_page_state(NR_SLAB_RECLAIMABLE) +
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 8fafbd5fe74a..6b1fea6cde9a 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -159,7 +159,7 @@ enum node_stat_item {
 	WORKINGSET_REFAULT,
 	WORKINGSET_ACTIVATE,
 	WORKINGSET_NODERECLAIM,
-	NR_ANON_PAGES,	/* Mapped anonymous pages */
+	NR_ANON_MAPPED,	/* Mapped anonymous pages */
 	NR_FILE_MAPPED,	/* pagecache pages mapped into pagetables.
 			   only modified from process context */
 	NR_VM_NODE_STAT_ITEMS
diff --git a/mm/migrate.c b/mm/migrate.c
index ffd86850564c..1582c07205c6 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -501,7 +501,7 @@ int migrate_page_move_mapping(struct address_space *mapping,
 	 * new page and drop references to the old page.
 	 *
 	 * Note that anonymous pages are accounted for
-	 * via NR_FILE_PAGES and NR_ANON_PAGES if they
+	 * via NR_FILE_PAGES and NR_ANON_MAPPED if they
 	 * are mapped to swap space.
 	 */
 	if (newzone != oldzone) {
diff --git a/mm/rmap.c b/mm/rmap.c
index dea2d115d68f..1c1455d2d39d 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1219,7 +1219,7 @@ void do_page_add_anon_rmap(struct page *page,
 			__inc_zone_page_state(page,
 					      NR_ANON_TRANSPARENT_HUGEPAGES);
 		}
-		__mod_node_page_state(page_pgdat(page), NR_ANON_PAGES, nr);
+		__mod_node_page_state(page_pgdat(page), NR_ANON_MAPPED, nr);
 	}
 	if (unlikely(PageKsm(page)))
 		return;
@@ -1263,7 +1263,7 @@ void page_add_new_anon_rmap(struct page *page,
 		/* increment count (starts at -1) */
 		atomic_set(&page->_mapcount, 0);
 	}
-	__mod_node_page_state(page_pgdat(page), NR_ANON_PAGES, nr);
+	__mod_node_page_state(page_pgdat(page), NR_ANON_MAPPED, nr);
 	__page_set_anon_rmap(page, vma, address, 1);
 }
 
@@ -1345,7 +1345,7 @@ static void page_remove_anon_compound_rmap(struct page *page)
 		clear_page_mlock(page);
 
 	if (nr) {
-		__mod_node_page_state(page_pgdat(page), NR_ANON_PAGES, -nr);
+		__mod_node_page_state(page_pgdat(page), NR_ANON_MAPPED, -nr);
 		deferred_split_huge_page(page);
 	}
 }
@@ -1377,7 +1377,7 @@ void page_remove_rmap(struct page *page, bool compound)
 	 * these counters are not modified in interrupt context, and
 	 * pte lock(a spinlock) is held, which implies preemption disabled.
 	 */
-	__dec_node_page_state(page, NR_ANON_PAGES);
+	__dec_node_page_state(page, NR_ANON_MAPPED);
 
 	if (unlikely(PageMlocked(page)))
 		clear_page_mlock(page);
-- 
2.6.4

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Thread

[PATCH 00/27] Move LRU page reclaim from zones to nodes v7 Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:20 +0200
  [PATCH 07/27] mm, vmscan: Remove balance gap Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:20 +0200
  [PATCH 09/27] mm, vmscan: By default have direct reclaim only shrink once per node Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:20 +0200
  [PATCH 06/27] mm, vmscan: Make kswapd reclaim in terms of nodes Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:20 +0200
  [PATCH 02/27] mm, vmscan: Move lru_lock to the node Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:20 +0200
  [PATCH 10/27] mm, vmscan: Remove duplicate logic clearing node congestion and dirty state Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:20 +0200
  [PATCH 11/27] mm: vmscan: Do not reclaim from kswapd if there is any eligible zone Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:20 +0200
  [PATCH 14/27] mm, workingset: Make working set detection node-aware Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:30 +0200
  [PATCH 17/27] mm: Rename NR_ANON_PAGES to NR_ANON_MAPPED Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:30 +0200
    Re: [PATCH 17/27] mm: Rename NR_ANON_PAGES to NR_ANON_MAPPED Michal Hocko <mhocko@kernel.org> - 2016-06-22 16:30 +0200
  [PATCH 12/27] mm, vmscan: Make shrink_node decisions more node-centric Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:30 +0200
    Re: [PATCH 12/27] mm, vmscan: Make shrink_node decisions more  node-centric Michal Hocko <mhocko@kernel.org> - 2016-06-22 15:30 +0200
    Re: [PATCH 12/27] mm, vmscan: Make shrink_node decisions more  node-centric Vlastimil Babka <vbabka@suse.cz> - 2016-06-22 17:50 +0200
  [PATCH 16/27] mm: Move page mapped accounting to the node Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:30 +0200
    Re: [PATCH 16/27] mm: Move page mapped accounting to the node Andrew Morton <akpm@linux-foundation.org> - 2016-06-22 00:50 +0200
      Re: [PATCH 16/27] mm: Move page mapped accounting to the node Mel Gorman <mgorman@techsingularity.net> - 2016-06-23 10:40 +0200
    Re: [PATCH 16/27] mm: Move page mapped accounting to the node Michal Hocko <mhocko@kernel.org> - 2016-06-22 16:40 +0200
  [PATCH 13/27] mm, memcg: Move memcg limit enforcement from zones to nodes Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:30 +0200
    Re: [PATCH 13/27] mm, memcg: Move memcg limit enforcement from zones  to nodes Michal Hocko <mhocko@kernel.org> - 2016-06-22 15:20 +0200
  [PATCH 22/27] mm: Convert zone_reclaim to node_reclaim Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:30 +0200
  [PATCH 19/27] mm: Move vmscan writes and file write accounting to the node Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:30 +0200
    Re: [PATCH 19/27] mm: Move vmscan writes and file write accounting  to the node Michal Hocko <mhocko@kernel.org> - 2016-06-22 16:50 +0200
      Re: [PATCH 19/27] mm: Move vmscan writes and file write accounting  to the node Mel Gorman <mgorman@techsingularity.net> - 2016-06-23 16:00 +0200
        Re: [PATCH 19/27] mm: Move vmscan writes and file write accounting to  the node Vlastimil Babka <vbabka@suse.cz> - 2016-06-23 16:10 +0200
          Re: [PATCH 19/27] mm: Move vmscan writes and file write accounting  to the node Mel Gorman <mgorman@techsingularity.net> - 2016-06-23 18:10 +0200
  [PATCH 24/27] mm, page_alloc: Remove fair zone allocation policy Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:30 +0200
  [PATCH 18/27] mm: Move most file-based accounting to the node Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:30 +0200
    Re: [PATCH 18/27] mm: Move most file-based accounting to the node Michal Hocko <mhocko@kernel.org> - 2016-06-22 17:30 +0200
  [PATCH 23/27] mm, vmscan: Add classzone information to tracepoints Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:40 +0200
  [PATCH 20/27] mm, vmscan: Update classzone_idx if buffer_heads_over_limit Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:40 +0200
    Re: [PATCH 20/27] mm, vmscan: Update classzone_idx if  buffer_heads_over_limit Michal Hocko <mhocko@kernel.org> - 2016-06-22 16:50 +0200
  [PATCH 27/27] mm: vmstat: Account per-zone stalls and pages skipped during reclaim Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:40 +0200
  [PATCH 26/27] mm: vmstat: Replace __count_zone_vm_events with a zone id equivalent Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:40 +0200
  [PATCH 15/27] mm, page_alloc: Consider dirtyable memory in terms of nodes Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:40 +0200
    Re: [PATCH 15/27] mm, page_alloc: Consider dirtyable memory in terms  of nodes Michal Hocko <mhocko@kernel.org> - 2016-06-22 16:30 +0200
      Re: [PATCH 15/27] mm, page_alloc: Consider dirtyable memory in terms  of nodes Michal Hocko <mhocko@kernel.org> - 2016-06-22 16:30 +0200
        Re: [PATCH 15/27] mm, page_alloc: Consider dirtyable memory in terms  of nodes Mel Gorman <mgorman@techsingularity.net> - 2016-06-23 15:00 +0200
          Re: [PATCH 15/27] mm, page_alloc: Consider dirtyable memory in terms  of nodes Michal Hocko <mhocko@kernel.org> - 2016-06-23 15:20 +0200
  [PATCH 25/27] mm: page_alloc: Cache the last node whose dirty limit is reached Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:50 +0200
  [PATCH 21/27] mm, vmscan: Only wakeup kswapd once per node for the requested classzone Mel Gorman <mgorman@techsingularity.net> - 2016-06-21 16:50 +0200
    Re: [PATCH 21/27] mm, vmscan: Only wakeup kswapd once per node for  the requested classzone Vlastimil Babka <vbabka@suse.cz> - 2016-06-22 18:10 +0200
  Re: [PATCH 03/27] mm, vmscan: Move LRU lists to node Vlastimil Babka <vbabka@suse.cz> - 2016-06-22 15:00 +0200
  Re: [PATCH 00/27] Move LRU page reclaim from zones to nodes v7 Mel Gorman <mgorman@techsingularity.net> - 2016-06-23 12:30 +0200
    Re: [PATCH 00/27] Move LRU page reclaim from zones to nodes v7 Michal Hocko <mhocko@kernel.org> - 2016-06-23 13:30 +0200
      Re: [PATCH 00/27] Move LRU page reclaim from zones to nodes v7 Mel Gorman <mgorman@techsingularity.net> - 2016-06-23 14:40 +0200
        Re: [PATCH 00/27] Move LRU page reclaim from zones to nodes v7 Michal Hocko <mhocko@kernel.org> - 2016-06-23 14:50 +0200

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