From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934530AbaEFIsJ (ORCPT ); Tue, 6 May 2014 04:48:09 -0400 Received: from mailout4.samsung.com ([203.254.224.34]:51845 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934397AbaEFIsF (ORCPT ); Tue, 6 May 2014 04:48:05 -0400 X-AuditID: cbfee61a-b7f2b6d000006c4d-6c-5368a1c40c36 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 2/6] f2fs: add a tracepoint for f2fs_write_end Date: Tue, 06 May 2014 16:47:23 +0800 Message-id: <004401cf6907$e584ffe0$b08effa0$@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: Ac9pB7u3fSt0TeuTRbGIU+l1nNaDPw== Content-language: zh-cn X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrLLMWRmVeSWpSXmKPExsVy+t9jQd0jCzOCDY5f07S4vusvk8WlRe4W e/aeZLG4vGsOmwOLx+4Fn5k8+rasYvT4vEkugDmKyyYlNSezLLVI3y6BK+Pdg//MBV28Feen CDcwnubqYuTkkBAwkZgxdSsbhC0mceHeeiCbi0NIYDqjxNL729ghnB+MEu8OXWQGqWITUJFY 3vGfCcQWEdCUeLx8M1icWSBT4l7TDDBbWMBDYsKq5ywgNouAqsS//VsYQWxeAUuJU2dXMEHY ghI/Jt9jgejVkli/8zgThC0vsXnNW2aIixQkdpx9zQixS0/i7vQNjBA14hIbj9ximcAoMAvJ qFlIRs1CMmoWkpYFjCyrGEVTC5ILipPScw31ihNzi0vz0vWS83M3MYID+ZnUDsaVDRaHGAU4 GJV4eE+sTA8WYk0sK67MPcQowcGsJMJbn58RLMSbklhZlVqUH19UmpNafIhRmoNFSZz3QKt1 oJBAemJJanZqakFqEUyWiYNTqoFxfdA3sY48r5/eBxROH4gzn5wZHpWezKIxb1ZUv84P9a/5 sXd/7GjVtjwXbHj5dUGeNU+dmbXZgscLX4ltjmUU5z26/9zSJyZW5+uUZ2ns23Q07/zUJ2LB szbd1lsorL3fOZNtp+ztwH/7HoTdV0rd+6ui+ampqpfblveq5+Rv3XtymOXTld+7lViKMxIN tZiLihMBpu+tsWACAAA= 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_end to trace write op of user. Signed-off-by: Chao Yu --- fs/f2fs/data.c | 2 ++ include/trace/events/f2fs.h | 30 ++++++++++++++++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index cde0d69..ea58fb6 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -989,6 +989,8 @@ static int f2fs_write_end(struct file *file, { struct inode *inode = page->mapping->host; + trace_f2fs_write_end(inode, pos, len, copied); + SetPageUptodate(page); set_page_dirty(page); diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index 1e9375a..483804b 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -689,6 +689,36 @@ TRACE_EVENT(f2fs_write_begin, __entry->flags) ); +TRACE_EVENT(f2fs_write_end, + + TP_PROTO(struct inode *inode, loff_t pos, unsigned int len, + unsigned int copied), + + TP_ARGS(inode, pos, len, copied), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(loff_t, pos) + __field(unsigned int, len) + __field(unsigned int, copied) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->pos = pos; + __entry->len = len; + __entry->copied = copied; + ), + + TP_printk("dev = (%d,%d), ino = %lu, pos = %llu, len = %u, copied = %u", + show_dev_ino(__entry), + (unsigned long long)__entry->pos, + __entry->len, + __entry->copied) +); + DECLARE_EVENT_CLASS(f2fs__page, TP_PROTO(struct page *page, int type), -- 1.7.9.5