From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934572AbaEFItX (ORCPT ); Tue, 6 May 2014 04:49:23 -0400 Received: from mailout2.samsung.com ([203.254.224.25]:38641 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934382AbaEFItV (ORCPT ); Tue, 6 May 2014 04:49:21 -0400 X-AuditID: cbfee61b-b7f766d00000646c-0e-5368a20f8348 From: Chao Yu To: Jaegeuk Kim Cc: linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [f2fs-dev][PATCH 3/6] f2fs: add a tracepoint for f2fs_write_{meta,node,data}_page Date: Tue, 06 May 2014 16:48:26 +0800 Message-id: <004501cf6908$123c99d0$36b5cd70$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: Ac9pB91OS7JTDtXAT02lTE6MmAzJtw== Content-language: zh-cn X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrLLMWRmVeSWpSXmKPExsVy+t9jQV3+RRnBBjtu6Vhc3/WXyeLSIneL PXtPslhc3jWHzYHFY/eCz0wefVtWMXp83iQXwBzFZZOSmpNZllqkb5fAlbH5/zq2glv8FTe2 vmdsYLzP08XIySEhYCLx+GAPE4QtJnHh3nq2LkYuDiGB6YwSf1bsYIJwfjBKfFpwhg2kik1A RWJ5x3+wDhEBTYnHyzczg9jMApkS95pmgNnCAjES1+ceYQWxWQRUJabeWwIW5xWwlHjw6gIr hC0o8WPyPRaIXi2J9TuPM0HY8hKb17xlhrhIQWLH2deMXYwcQLv0JB53hkOUiEtsPHKLZQKj wCwkk2YhmTQLyaRZSFoWMLKsYhRNLUguKE5KzzXSK07MLS7NS9dLzs/dxAgO5GfSOxhXNVgc YhTgYFTi4T2xMj1YiDWxrLgy9xCjBAezkghvfX5GsBBvSmJlVWpRfnxRaU5q8SFGaQ4WJXHe g63WgUIC6YklqdmpqQWpRTBZJg5OqQbGEL9+Ifbfnq4axbenr5zApDp/5loR5o0tB251738e 6rk2crFs5MTMK/9uiK+N5Vd9c7j8aeGGb+J5ywwZhN4xi6oUXQqqKbvYXSDc/k4gnd/VffnN HMZ9zxN74j84OCeFP/i++bu7ofOOb5dfpS8y2qN2gsfZkSewW7ZjmevjV94mCm6FHN5KLMUZ iYZazEXFiQDvycn9YAIAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds a tracepoint for f2fs_write_{meta,node,data}_page to trace when page is writting out. Signed-off-by: Chao Yu --- fs/f2fs/checkpoint.c | 2 ++ fs/f2fs/data.c | 2 ++ fs/f2fs/node.c | 2 ++ include/trace/events/f2fs.h | 7 +++++++ 4 files changed, 13 insertions(+) diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index b6f6ead..7962aaf 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -160,6 +160,8 @@ static int f2fs_write_meta_page(struct page *page, struct inode *inode = page->mapping->host; struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); + trace_f2fs_writepage(page, META); + if (unlikely(sbi->por_doing)) goto redirty_out; if (wbc->for_reclaim) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index ea58fb6..b997d55 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -788,6 +788,8 @@ static int f2fs_write_data_page(struct page *page, .rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE, }; + trace_f2fs_writepage(page, DATA); + if (page->index < end_index) goto write; diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 059aaf5..49bdddb 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1199,6 +1199,8 @@ static int f2fs_write_node_page(struct page *page, .rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE, }; + trace_f2fs_writepage(page, NODE); + if (unlikely(sbi->por_doing)) goto redirty_out; diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index 483804b..d70991e 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -751,6 +751,13 @@ DECLARE_EVENT_CLASS(f2fs__page, __entry->dirty) ); +DEFINE_EVENT(f2fs__page, f2fs_writepage, + + 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), -- 1.7.9.5