linux-kernel - Re: [PATCH 0/7] blktrace: various cleanups and fixes

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Date:	Fri, 20 Mar 2009 12:09:21 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Li Zefan <lizf@...fujitsu.com>
Cc:	Jens Axboe <jens.axboe@...cle.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/7] blktrace: various cleanups and fixes


* Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Li Zefan <lizf@...fujitsu.com> wrote:
> 
> > While trying to use blktrace in -tip tree, I encounted kernel NULL 
> > dereference, so I looked into the code, and then found some other 
> > bugs.
> > 
> > This patchset is part 1, and I have some other pending fixes.
> > 
> > Each patch is small and straightforward, and should be easy to review:
> > 
> > [PATCH 1/7] blktrace: fix possible memory leak
> > [PATCH 2/7] blktrace: make blk_tracer_enabled a bool flag
> > [PATCH 3/7] blktrace: remove blk_probe_mutex
> > [PATCH 4/7] blktrace: don't increase blk_probes_ref if failed to setup blk trace
> > [PATCH 5/7] blktrace: report EBUSY correctly
> > [PATCH 6/7] blktrace: remove sysfs_blk_trace_enable_show/store()
> > [PATCH 7/7] blktrace: avoid accessing NULL bdev->bd_disk
> > ---
> >  blktrace.c |  154 +++++++++++++++++--------------------------------------------
> >  1 file changed, 45 insertions(+), 109 deletions(-)
> > 
> > Signed-off-by: Li Zefan <lizf@...fujitsu.com>
> 
> Nice fixes. Applied to tip:tracing/blktrace, thanks!

Which would go upstream in the .30 merge window (unless Jens or 
Steve objects of course).

	Ingo
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