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| author | Chao Yu <chao2.yu@samsung.com> | 2014-05-06 16:53:08 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-05-07 10:21:59 +0900 |
| commit | c20e89cde669799eff62bf8c00ca9a4819c4e11f (patch) | |
| tree | 9fba31d66ff9bff75ddb72438d3ac5d2e6a7d207 | |
| parent | e57484343898094bb8f72a2aa1a50929d27aa027 (diff) | |
| download | op-kernel-dev-c20e89cde669799eff62bf8c00ca9a4819c4e11f.zip op-kernel-dev-c20e89cde669799eff62bf8c00ca9a4819c4e11f.tar.gz | |
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 <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
| -rw-r--r-- | fs/f2fs/data.c | 2 | ||||
| -rw-r--r-- | 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 21bfafa..8c250a5 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 91b1fcc..b983990 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), |
