From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chao Yu Subject: [f2fs-dev] [PATCH 2/2] f2fs: adds a tracepoint for f2fs_submit_read_bio Date: Wed, 20 Nov 2013 16:41:17 +0800 Message-ID: <001f01cee5cc$5d297450$177c5cf0$@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=gb2312 Content-Transfer-Encoding: 7bit Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, =?gb2312?B?zLfmrQ==?= To: ??? Return-path: Received: from mailout3.samsung.com ([203.254.224.33]:21772 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750855Ab3KTIl4 (ORCPT ); Wed, 20 Nov 2013 03:41:56 -0500 Content-language: zh-cn Sender: linux-fsdevel-owner@vger.kernel.org List-ID: This patch adds a tracepoint for f2fs_submit_read_bio. Signed-off-by: Chao Yu --- fs/f2fs/data.c | 2 ++ include/trace/events/f2fs.h | 27 +++++++++++++++++++++++++++ 2 files changed, 29 insertions(+) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 0ca93be..c9e9d79 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -407,6 +407,8 @@ void f2fs_submit_read_bio(struct f2fs_sb_info *sbi, int rw) if (!io->bio) return; + trace_f2fs_submit_read_bio(sbi->sb, rw, io->bio); + mutex_lock(&io->io_mutex); if (io->bio) { submit_bio(rw, io->bio); diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index 571f39a..ac970e3 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -453,6 +453,33 @@ TRACE_EVENT_CONDITION(f2fs_readpage, show_bio_type(__entry->type)) ); +TRACE_EVENT(f2fs_submit_read_bio, + + TP_PROTO(struct super_block *sb, int rw, struct bio *bio), + + TP_ARGS(sb, rw, bio), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(int, rw) + __field(sector_t, sector) + __field(unsigned int, size) + ), + + TP_fast_assign( + __entry->dev = sb->s_dev; + __entry->rw = rw; + __entry->sector = bio->bi_sector; + __entry->size = bio->bi_size; + ), + + TP_printk("dev = (%d,%d), bio_type = %s, sector = %lld, size = %u", + show_dev(__entry), + show_bio_type(__entry->rw), + (unsigned long long)__entry->sector, + __entry->size) +); + TRACE_EVENT(f2fs_submit_read_page, TP_PROTO(struct page *page, block_t blk_addr, int rw), -- 1.7.9.5