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SubjectRe: [PATCH tip 1/2] ring_buffer: remove unused flags parameter
On Thu, Feb 05, 2009 at 11:48:40PM -0200, Arnaldo Carvalho de Melo wrote:
> Em Thu, Feb 05, 2009 at 11:17:02PM +0100, Frederic Weisbecker escreveu:
> > On Thu, Feb 05, 2009 at 04:12:56PM -0200, Arnaldo Carvalho de Melo wrote:
> > > Impact: API change, cleanup
> > >
> > > From ring_buffer_{lock_reserve,unlock_commit}.
> > >
> > > Cc: Ingo Molnar <mingo@elte.hu>
> > > Cc: Frédéric Weisbecker <fweisbec@gmail.com>
> > > Cc: Jens Axboe <jens.axboe@oracle.com>
> > > Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> > > ---
> > > block/blktrace.c | 8 +++---
> > > include/linux/ring_buffer.h | 9 ++----
> > > kernel/trace/kmemtrace.c | 12 +++-----
> > > kernel/trace/ring_buffer.c | 9 +-----
> > > kernel/trace/trace.c | 56 +++++++++++++------------------------
> > > kernel/trace/trace_boot.c | 12 +++-----
> > > kernel/trace/trace_branch.c | 7 ++---
> > > kernel/trace/trace_hw_branches.c | 6 ++--
> > > kernel/trace/trace_mmiotrace.c | 12 +++-----
> > > kernel/trace/trace_power.c | 12 +++-----
> > > 10 files changed, 51 insertions(+), 92 deletions(-)
> > >
> > > $ codiff /tmp/vmlinux.before /tmp/vmlinux.after
> > > linux-2.6-tip/kernel/trace/trace.c:
> > > trace_vprintk | -14
> > > trace_graph_return | -14
> > > trace_graph_entry | -10
> > > trace_function | -8
> > > __ftrace_trace_stack | -8
> > > ftrace_trace_userstack | -8
> > > tracing_sched_switch_trace | -8
> > > ftrace_trace_special | -12
> > > tracing_sched_wakeup_trace | -8
> > > 9 functions changed, 90 bytes removed, diff: -90
> > >
> > > linux-2.6-tip/block/blktrace.c:
> > > __blk_add_trace | -1
> > > 1 function changed, 1 bytes removed, diff: -1
> > >
> > > /tmp/vmlinux.after:
> > > 10 functions changed, 91 bytes removed, diff: -91
> >
> >
> > codiff... I didn't know this great tool! :-)
>
> My marketing dept is not so good, but since you liked it, I guess its
> appropriate to point you to this, that is the only documentation
> available about it and some of its friends, like pahole:
>
> https://ols2006.108.redhat.com/2007/Reprints/melo-Reprint.pdf

Oh thank you! :-)

> Now back to the Rostedts extended TODO list.
>
> - Arnaldo

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