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Diffstat (limited to 'mm/filemap.c')
-rw-r--r--mm/filemap.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 75575c392167..c1fc205a92c6 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -123,6 +123,8 @@ void __remove_from_page_cache(struct page *page)
page->mapping = NULL;
mapping->nrpages--;
__dec_zone_page_state(page, NR_FILE_PAGES);
+ if (PageSwapBacked(page))
+ __dec_zone_page_state(page, NR_SHMEM);
BUG_ON(page_mapped(page));
/*
@@ -435,6 +437,8 @@ int add_to_page_cache_locked(struct page *page, struct address_space *mapping,
if (likely(!error)) {
mapping->nrpages++;
__inc_zone_page_state(page, NR_FILE_PAGES);
+ if (PageSwapBacked(page))
+ __inc_zone_page_state(page, NR_SHMEM);
spin_unlock_irq(&mapping->tree_lock);
} else {
page->mapping = NULL;