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Commit c20e89cd authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: add a tracepoint for f2fs_read_data_page 



This patch adds a tracepoint for f2fs_read_data_page to trace when page is
readed by user.

Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk.kim@samsung.com>
parent e5748434

fs/f2fs/data.c

+2 −0
Original line number Diff line number Diff line
@@ -713,6 +713,8 @@ static int f2fs_read_data_page(struct file *file, struct page *page) 
	struct inode *inode = page->mapping->host;

	int ret;



	trace_f2fs_readpage(page, DATA);



	/* If the file has inline data, try to read it directlly */

	if (f2fs_has_inline_data(inode))

		ret = f2fs_read_inline_data(inode, page);

include/trace/events/f2fs.h

+13 −2
Original line number Diff line number Diff line
@@ -732,6 +732,7 @@ DECLARE_EVENT_CLASS(f2fs__page, 
		__field(int, dir)

		__field(pgoff_t, index)

		__field(int, dirty)

		__field(int, uptodate)

	),



	TP_fast_assign(
@@ -741,14 +742,17 @@ DECLARE_EVENT_CLASS(f2fs__page, 
		__entry->dir	= S_ISDIR(page->mapping->host->i_mode);

		__entry->index	= page->index;

		__entry->dirty	= PageDirty(page);

		__entry->uptodate = PageUptodate(page);

	),



	TP_printk("dev = (%d,%d), ino = %lu, %s, %s, index = %lu, dirty = %d",

	TP_printk("dev = (%d,%d), ino = %lu, %s, %s, index = %lu, "

		"dirty = %d, uptodate = %d",

		show_dev_ino(__entry),

		show_block_type(__entry->type),

		show_file_type(__entry->dir),

		(unsigned long)__entry->index,

		__entry->dirty)

		__entry->dirty,

		__entry->uptodate)

);



DEFINE_EVENT(f2fs__page, f2fs_writepage,
@@ -758,6 +762,13 @@ DEFINE_EVENT(f2fs__page, f2fs_writepage, 
	TP_ARGS(page, type)

);



DEFINE_EVENT(f2fs__page, f2fs_readpage,



	TP_PROTO(struct page *page, int type),



	TP_ARGS(page, type)

);



DEFINE_EVENT(f2fs__page, f2fs_set_page_dirty,



	TP_PROTO(struct page *page, int type),