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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2016-07-27 01:26:10 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-27 02:19:19 +0300
commit65c453778aea374a46597f4d9826274d1eaf7338 (patch)
tree4210852e253bcea95da5b2973d7be93a535ee3a1 /mm/page_alloc.c
parentfc127da085c26beb89f83ad804cf73422c3b6855 (diff)
downloadlinux-65c453778aea374a46597f4d9826274d1eaf7338.tar.xz
mm, rmap: account shmem thp pages
Let's add ShmemHugePages and ShmemPmdMapped fields into meminfo and smaps. It indicates how many times we allocate and map shmem THP. NR_ANON_TRANSPARENT_HUGEPAGES is renamed to NR_ANON_THPS. Link: http://lkml.kernel.org/r/1466021202-61880-27-git-send-email-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 847281eb74da..452513bf02ce 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4312,6 +4312,9 @@ void show_free_areas(unsigned int filter)
" unevictable:%lu dirty:%lu writeback:%lu unstable:%lu\n"
" slab_reclaimable:%lu slab_unreclaimable:%lu\n"
" mapped:%lu shmem:%lu pagetables:%lu bounce:%lu\n"
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ " anon_thp: %lu shmem_thp: %lu shmem_pmdmapped: %lu\n"
+#endif
" free:%lu free_pcp:%lu free_cma:%lu\n",
global_page_state(NR_ACTIVE_ANON),
global_page_state(NR_INACTIVE_ANON),
@@ -4329,6 +4332,11 @@ void show_free_areas(unsigned int filter)
global_page_state(NR_SHMEM),
global_page_state(NR_PAGETABLE),
global_page_state(NR_BOUNCE),
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ global_page_state(NR_ANON_THPS) * HPAGE_PMD_NR,
+ global_page_state(NR_SHMEM_THPS) * HPAGE_PMD_NR,
+ global_page_state(NR_SHMEM_PMDMAPPED) * HPAGE_PMD_NR,
+#endif
global_page_state(NR_FREE_PAGES),
free_pcp,
global_page_state(NR_FREE_CMA_PAGES));
@@ -4363,6 +4371,11 @@ void show_free_areas(unsigned int filter)
" writeback:%lukB"
" mapped:%lukB"
" shmem:%lukB"
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ " shmem_thp: %lukB"
+ " shmem_pmdmapped: %lukB"
+ " anon_thp: %lukB"
+#endif
" slab_reclaimable:%lukB"
" slab_unreclaimable:%lukB"
" kernel_stack:%lukB"
@@ -4395,6 +4408,12 @@ void show_free_areas(unsigned int filter)
K(zone_page_state(zone, NR_WRITEBACK)),
K(zone_page_state(zone, NR_FILE_MAPPED)),
K(zone_page_state(zone, NR_SHMEM)),
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ K(zone_page_state(zone, NR_SHMEM_THPS) * HPAGE_PMD_NR),
+ K(zone_page_state(zone, NR_SHMEM_PMDMAPPED)
+ * HPAGE_PMD_NR),
+ K(zone_page_state(zone, NR_ANON_THPS) * HPAGE_PMD_NR),
+#endif
K(zone_page_state(zone, NR_SLAB_RECLAIMABLE)),
K(zone_page_state(zone, NR_SLAB_UNRECLAIMABLE)),
zone_page_state(zone, NR_KERNEL_STACK) *