From: Tejun Heo <tj@kernel.org>
To: axboe@kernel.dk
Cc: linux-kernel@vger.kernel.org, chavey@google.com
Subject: [PATCHSET] block: improve tracepoints
Date: Wed, 9 Jan 2013 08:45:03 -0800 [thread overview]
Message-ID: <1357749908-16562-1-git-send-email-tj@kernel.org> (raw)
Hello, Jens.
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_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 | 8 ++
fs/fs-writeback.c | 17 ++++
include/linux/blktrace_api.h | 1
include/linux/buffer_head.h | 2
include/trace/events/block.h | 78 ++++++++++++++++++----
include/trace/events/writeback.h | 135 +++++++++++++++++++++++++++++++++++++++
kernel/trace/blktrace.c | 28 +++++++-
mm/page-writeback.c | 2
12 files changed, 255 insertions(+), 35 deletions(-)
--
tejun
next reply other threads:[~2013-01-09 16:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-09 16:45 Tejun Heo [this message]
2013-01-09 16:45 ` [PATCH 1/5] block: add missing block_bio_complete() tracepoint Tejun Heo
2013-01-09 16:45 ` [PATCH 2/5] block: add @req to bio_{front|back}_merge tracepoints Tejun Heo
2013-01-09 16:45 ` [PATCH 3/5] buffer: make touch_buffer() an exported function Tejun Heo
2013-01-09 16:45 ` [PATCH 4/5] block: add block_touch_buffer tracepoint Tejun Heo
2013-01-09 16:45 ` [PATCH 5/5] writeback: add more tracepoints Tejun Heo
2013-01-11 20:08 ` [PATCHSET] block: improve tracepoints Tejun Heo
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