f2fs: add tracepoint for vm_page_mkwrite

This patch adds a tracepoint for f2fs_vm_page_mkwrite.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

2 files changed, 8 insertions, 0 deletions

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index c80faa2fff39..2d4190a4abe3 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -88,6 +88,7 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
         set_page_dirty(page);
         SetPageUptodate(page);
 
+        trace_f2fs_vm_page_mkwrite(page, DATA);
 mapped:
         /* fill the page */
         wait_on_page_writeback(page);
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index ebde3afb89cd..e0dc355fa317 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -667,6 +667,13 @@ DEFINE_EVENT(f2fs__page, f2fs_set_page_dirty,
         TP_ARGS(page, type)
 );
 
+DEFINE_EVENT(f2fs__page, f2fs_vm_page_mkwrite,
+
+        TP_PROTO(struct page *page, int type),
+
+        TP_ARGS(page, type)
+);
+
 TRACE_EVENT(f2fs_submit_write_page,
 
         TP_PROTO(struct page *page, block_t blk_addr, int type),