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

From: Ingo Molnar
Date: Fri Mar 20 2009 - 07:09:50 EST



* Ingo Molnar <mingo@xxxxxxx> wrote:

>
> * Li Zefan <lizf@xxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxx>
>
> 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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