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-rw-r--r--mm/filemap.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index e1979fdca805..2581826409f2 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -35,6 +35,9 @@
#include <linux/cleancache.h>
#include "internal.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/filemap.h>
+
/*
* FIXME: remove all knowledge of the buffer layer from the core VM
*/
@@ -113,6 +116,7 @@ void __delete_from_page_cache(struct page *page)
{
struct address_space *mapping = page->mapping;
+ trace_mm_filemap_delete_from_page_cache(page);
/*
* if we're uptodate, flush out into the cleancache, otherwise
* invalidate any existing cleancache entries. We can't leave
@@ -464,6 +468,7 @@ int add_to_page_cache_locked(struct page *page, struct address_space *mapping,
mapping->nrpages++;
__inc_zone_page_state(page, NR_FILE_PAGES);
spin_unlock_irq(&mapping->tree_lock);
+ trace_mm_filemap_add_to_page_cache(page);
} else {
page->mapping = NULL;
/* Leave page->index set: truncation relies upon it */