On Thu, 5 Oct 2017 09:01:14 -0700
Thomas Garnier wrote:
> On Thu, Oct 5, 2017 at 6:06 AM, Steven Rostedt wrote:
> > On Wed, 4 Oct 2017 14:19:56 -0700
> > Thomas Garnier wrote:
> >
> >> When using -fPIE/PIC with function tracing, the compiler generates a
&
On Wed, 4 Oct 2017 14:19:56 -0700
Thomas Garnier wrote:
> When using -fPIE/PIC with function tracing, the compiler generates a
> call through the GOT (call *__fentry__@GOTPCREL). This instruction
> takes 6 bytes instead of 5 on the usual relative call.
>
> With this change, function tracing sup
On Thu, 24 Aug 2017 14:13:38 -0700
Thomas Garnier wrote:
> With the fix for function tracing, the hackbench results have an
> average of +0.8 to +1.4% (from +8% to +10% before). With a default
> configuration, the numbers are closer to 0.8%.
Wow, an empty fentry function not "nop"ed out only add
On Fri, 11 Aug 2017 14:07:14 +0200
Peter Zijlstra wrote:
> It goes like:
>
> CPU0CPU1
>
> unhook page
> cli
> traverse page tables
> TLB invalidate --->
> sti
>
dding Ingo and Steven)
Feel free to add:
Acked-by: Steven Rostedt (VMware)
to both.
-- Steve
>
> Reviewed-by: Boris Ostrovsky
>
> although I think "s/some Xen/some unused Xen/" in the commit message
> would make it clearer.
>
_
On Fri, 4 Aug 2017 15:20:30 -0400
Boris Ostrovsky wrote:
> On 08/04/2017 07:36 AM, Juergen Gross wrote:
> > The function xen_set_domain_pte() is used nowhere in the kernel.
> > Remove it.
> >
> > Signed-off-by: Juergen Gross
>
> Reviewed-by: Boris Ostrovsky
>
> (+ Ingo and Steven who are ma
r_warn("WARNING: mapping %lu kB @ 0x%08lx in PCI address space, and
> writing 16 kB of rubbish in there\n",
> + size >> 10, mmio_address);
> do_test(size);
> do_test_bulk_ioremapping();
> pr_info("All done.\n");
Acked-by: Ste
On Mon, 15 Aug 2016 21:15:06 +0100
Alan Cox wrote:
> > This is the module tag ... it says what licence the module is under,
> > not the licence for the module combined with the kernel, which is
> > always GPLv2 because the stricter licence rules.
>
> Because if I build a BSD licensed module ag
On Fri, 22 Jul 2016 22:37:16 +0100
James Hogan wrote:
> > --- /dev/null
> > +++ b/arch/alpha/include/asm/sections.h
> > @@ -0,0 +1,6 @@
> > +#ifndef _ASM_ALPHA_SECTIONS_H
> > +#define _ASM_ALPHA_SECTIONS_H
> > +
> > +#include
> > +
> > +#endif /* _ASM_ALPHA_SECTIONS_H */
>
> Any particular r
On Thu, 22 Jan 2015 17:40:27 -0800
Andy Lutomirski wrote:
> >
> > +/*
> > + * CONFIG_PREEMPT=n kernels can end up triggering the softlock
> > + * TASK_UNINTERRUPTIBLE hanger check (default 120 seconds)
> > + * when certain multicalls are used [0] on large systems, in
> > + * that case we need a w
On Thu, 22 Jan 2015 12:58:00 -0800
Andy Lutomirski wrote:
> On Thu, Jan 22, 2015 at 12:37 PM, Steven Rostedt wrote:
> > On Thu, 22 Jan 2015 12:24:47 -0800
> > Andy Lutomirski wrote:
> >
> >> > Also, please remove the "notrace", because function traci
On Thu, 22 Jan 2015 12:24:47 -0800
Andy Lutomirski wrote:
> > Also, please remove the "notrace", because function tracing goes an
> > extra step to not require RCU being visible. The only thing you get
> > with notrace is not being able to trace an otherwise traceable function.
> >
>
> Is this a
[ Added Paul McKenney ]
On Thu, 22 Jan 2015 19:39:13 +0100
"Luis R. Rodriguez" wrote:
> > Why not make this a tracepoint? Then you can enable it only when you
> > want to. As tracepoints are also hooks, you could add you own code that
> > hooks to it and does a printk as well. The advantage of
On Thu, 22 Jan 2015 11:50:10 +
Andrew Cooper wrote:
> On 22/01/15 02:17, Luis R. Rodriguez wrote:
> > --- a/drivers/xen/events/events_base.c
> > +++ b/drivers/xen/events/events_base.c
> > @@ -32,6 +32,8 @@
> > #include
> > #include
> > #include
> > +#include
> > +#include
> >
> > #
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