From c20e89cde669799eff62bf8c00ca9a4819c4e11f Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Tue, 6 May 2014 16:53:08 +0800 Subject: [PATCH] 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: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/data.c | 2 ++ include/trace/events/f2fs.h | 15 +++++++++++++-- 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 21bfafaafe83..8c250a5d6f26 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -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); diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index 91b1fcc5ec93..b983990b4a9f 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -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), -- 2.20.1