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Date: Wed, 17 Jun 2015 12:33:51 +0300 From: Riku Voipio <riku.voipio@....fi> To: Ingo Molnar <mingo@...nel.org> Cc: Rusty Russell <rusty@...tcorp.com.au>, Stephen Rothwell <sfr@...b.auug.org.au>, Peter Zijlstra <peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>, <linux-kernel@...r.kernel.org>, "Paul E. McKenney" <paulmck@...ibm.com> Subject: Re: [PATCH] tools/perf, rbtree: Add RCU wrappers to make rbtree.h usable in user-space On Wednesday, June 17, 2015 12:17:04 PM EEST, Ingo Molnar wrote: > * Riku Voipio <riku.voipio@....fi> wrote: > >> Hi, >> >> The commit: >> >> commit d72da4a4d973d8a0a0d3c97e7cdebf287fbe3a99 >> Author: Peter Zijlstra <peterz@...radead.org> >> Date: Wed May 27 11:09:36 2015 +0930 ... > > Does the patch below make things work? It does, Tested-by: Riku Voipio <riku.voipio@....fi> > This fix could go into the modules tree, as this commit came via Rusty. > > Stephen, feel free to add: > > make -C tools/perf > > to the linux-next build tests. It's always supposed to build > without failure, in > pretty much whatever x86 distro you run your build tests on. > > Thanks, > > Ingo > > > ===================> > From 62c251255f07ede8efa356d4ea9ab51827ffa0d0 Mon Sep 17 00:00:00 2001 > From: Ingo Molnar <mingo@...nel.org> > Date: Wed, 17 Jun 2015 11:07:11 +0200 > Subject: [PATCH] tools/perf, rbtree: Add RCU wrappers to make > rbtree.h usable in user-space > > Reported-by: Riku Voipio <riku.voipio@....fi> > Signed-off-by: Ingo Molnar <mingo@...nel.org> > --- > tools/perf/util/include/linux/rcupdate.h | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/tools/perf/util/include/linux/rcupdate.h > b/tools/perf/util/include/linux/rcupdate.h > new file mode 100644 > index 000000000000..3e022dd9a69b > --- /dev/null > +++ b/tools/perf/util/include/linux/rcupdate.h > @@ -0,0 +1,9 @@ > +#ifndef PERF_LINUX_RCUPDATE_H_ > +#define PERF_LINUX_RCUPDATE_H_ > + > +/* Simple trivial wrappers for now, we don't use RCU in perf > user-space (yet): */ > +#define WRITE_ONCE(var, val) ((var) = (val)) > +#define rcu_assign_pointer(ptr, val) WRITE_ONCE(ptr, val) > + > +#endif > + > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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