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>
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@ -713,6 +713,8 @@ static int f2fs_read_data_page(struct file *file, struct page *page)
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struct inode *inode = page->mapping->host;
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int ret;
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trace_f2fs_readpage(page, DATA);
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/* If the file has inline data, try to read it directlly */
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if (f2fs_has_inline_data(inode))
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ret = f2fs_read_inline_data(inode, page);
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@ -732,6 +732,7 @@ DECLARE_EVENT_CLASS(f2fs__page,
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__field(int, dir)
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__field(pgoff_t, index)
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__field(int, dirty)
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__field(int, uptodate)
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),
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TP_fast_assign(
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@ -741,14 +742,17 @@ DECLARE_EVENT_CLASS(f2fs__page,
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__entry->dir = S_ISDIR(page->mapping->host->i_mode);
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__entry->index = page->index;
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__entry->dirty = PageDirty(page);
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__entry->uptodate = PageUptodate(page);
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),
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TP_printk("dev = (%d,%d), ino = %lu, %s, %s, index = %lu, dirty = %d",
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TP_printk("dev = (%d,%d), ino = %lu, %s, %s, index = %lu, "
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"dirty = %d, uptodate = %d",
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show_dev_ino(__entry),
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show_block_type(__entry->type),
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show_file_type(__entry->dir),
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(unsigned long)__entry->index,
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__entry->dirty)
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__entry->dirty,
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__entry->uptodate)
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);
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DEFINE_EVENT(f2fs__page, f2fs_writepage,
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@ -758,6 +762,13 @@ DEFINE_EVENT(f2fs__page, f2fs_writepage,
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TP_ARGS(page, type)
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);
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DEFINE_EVENT(f2fs__page, f2fs_readpage,
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TP_PROTO(struct page *page, int type),
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TP_ARGS(page, type)
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);
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DEFINE_EVENT(f2fs__page, f2fs_set_page_dirty,
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TP_PROTO(struct page *page, int type),
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