From: Tejun Heo <tj@kernel.org>
To: axboe@kernel.dk
Cc: linux-kernel@vger.kernel.org, chavey@google.com, fengguang.wu@intel.com
Subject: [PATCHSET] block: improve tracepoints, take#2
Date: Fri, 11 Jan 2013 13:06:32 -0800 [thread overview]
Message-ID: <1357938397-5413-1-git-send-email-tj@kernel.org> (raw)
Hello, Jens.
This is the second take. Changes from the first take[L] are
* writeback_dirty_buffer TP was botched. It made build fail when
CONFIG_BLOCK is not set (reported by Fengguang) and I somehow lost
its actual triggering in mark_buffer_dirty() while splitting
patches. Made it a block TP instead so that it can share TP
definition with block_touch_buffer and restored the triggering from
mark_buffer_dirty().
This patchset fixes/improves bio_complete TP so that block layer
proper triggers for all completing bios instead of stackign drivers
triggering them manually and adds more buffer / block / writeback TPs.
These improve visibility in general and are already in use in google.
This patchset contains the following five patches.
0001-block-add-missing-block_bio_complete-tracepoint.patch
0002-block-add-req-to-bio_-front-back-_merge-tracepoints.patch
0003-buffer-make-touch_buffer-an-exported-function.patch
0004-block-add-block_-touch-dirty-_buffer-tracepoint.patch
0005-writeback-add-more-tracepoints.patch
It's based on top of v3.8-rc2 and also available in the following git
branch.
git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git block-tps
diffstat follows. Thanks.
block/blk-core.c | 5 -
drivers/md/dm.c | 1
drivers/md/raid5.c | 11 ---
fs/bio.c | 2
fs/buffer.c | 10 +++
fs/fs-writeback.c | 16 ++++-
include/linux/blktrace_api.h | 1
include/linux/buffer_head.h | 2
include/trace/events/block.h | 104 +++++++++++++++++++++++++++++-----
include/trace/events/writeback.h | 116 +++++++++++++++++++++++++++++++++++++++
kernel/trace/blktrace.c | 28 ++++++++-
mm/page-writeback.c | 2
12 files changed, 263 insertions(+), 35 deletions(-)
--
tejun
[L] http://thread.gmane.org/gmane.linux.kernel/1419141
next reply other threads:[~2013-01-11 21:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-11 21:06 Tejun Heo [this message]
2013-01-11 21:06 ` [PATCH 1/5] block: add missing block_bio_complete() tracepoint Tejun Heo
2013-01-11 21:06 ` [PATCH 2/5] block: add @req to bio_{front|back}_merge tracepoints Tejun Heo
2013-01-11 21:06 ` [PATCH 3/5] buffer: make touch_buffer() an exported function Tejun Heo
2013-01-11 21:06 ` [PATCH 4/5] block: add block_{touch|dirty}_buffer tracepoint Tejun Heo
2013-01-11 21:06 ` [PATCH 5/5] writeback: add more tracepoints Tejun Heo
2013-01-12 3:17 ` Fengguang Wu
2013-01-14 13:57 ` Jan Kara
2013-01-14 14:02 ` [PATCHSET] block: improve tracepoints, take#2 Jens Axboe
2013-01-14 17:43 ` Tejun Heo
2013-01-14 18:22 ` [PATCH] writeback: mark sysctl vm.block_dump for removal Tejun Heo
2013-01-14 19:00 ` Jan Kara
2013-01-15 16:28 ` [PATCH v2] " Tejun Heo
2013-01-16 2:07 ` Jan Kara
2013-01-16 2:53 ` Fengguang Wu
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