On Wed, Feb 19, 2020 at 08:50:20AM -0800, Paul E. McKenney wrote: > On Wed, Feb 19, 2020 at 05:03:18PM +0100, Peter Zijlstra wrote: > > On Wed, Feb 19, 2020 at 10:46:26AM -0500, Steven Rostedt wrote: > > > On Wed, 19 Feb 2020 15:47:40 +0100 > > > Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > > > > > > > From: Marco Elver <elver@xxxxxxxxxx> > > > > > > > > This adds KCSAN instrumentation to atomic-instrumented.h. > > > > > > > > Signed-off-by: Marco Elver <elver@xxxxxxxxxx> > > > > Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx> > > > > [peterz: removed the actual kcsan hooks] > > > > Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> > > > > Reviewed-by: Mark Rutland <mark.rutland@xxxxxxx> > > > > --- > > > > include/asm-generic/atomic-instrumented.h | 390 +++++++++++++++--------------- > > > > scripts/atomic/gen-atomic-instrumented.sh | 14 - > > > > 2 files changed, 212 insertions(+), 192 deletions(-) > > > > > > > > > > > > > Does this and the rest of the series depend on the previous patches in > > > the series? Or can this be a series on to itself (patches 16-22)? > > > > It can probably stand on its own, but it very much is related in so far > > that it's fallout from staring at all this nonsense. > > > > Without these the do_int3() can actually have accidental tracing before > > reaching it's nmi_enter(). > > The original is already in -tip, so some merge magic will be required. Yes, So I don't strictly need this one, but I do need the two next patches adding __always_inline to everything. I figured it was easier to also pick this one (and butcher it) than to rebase everything. I didn't want to depend on the locking/kcsan tree, and if this goes in, we do have to do something 'funny' there. Maybe rebase, maybe put in a few kcsan stubs so the original patch at least compiles. We'll see :/
