lkml.org 
[lkml]   [2021]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v8 2/4] libperf: Add evsel mmap support
Em Thu, Apr 15, 2021 at 04:14:31AM +0900, Namhyung Kim escreveu:
> On Thu, Apr 15, 2021 at 3:23 AM Arnaldo Carvalho de Melo
> <acme@kernel.org> wrote:
> >
> > Em Wed, Apr 14, 2021 at 03:02:08PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > Em Thu, Apr 15, 2021 at 01:41:35AM +0900, Namhyung Kim escreveu:
> > > > Hello,
> > > >
> > > > On Thu, Apr 15, 2021 at 1:07 AM Rob Herring <robh@kernel.org> wrote:
> > > > > +void *perf_evsel__mmap_base(struct perf_evsel *evsel, int cpu, int thread)
> > > > > +{
> > > > > + if (FD(evsel, cpu, thread) < 0 || MMAP(evsel, cpu, thread) == NULL)
> > > > > + return NULL;
> > > >
> > > > I think you should check the cpu and the thread is in
> > > > a valid range. Currently xyarray__entry() simply accesses
> > > > the content without checking the boundaries.
> > >
> > > So, since xyarray has the bounds, it should check it, i.e. we need to
> > > have a __xyarray__entry() that is what xyarray__entry() does, i.e.
> > > assume the values have been bounds checked, then a new method,
> > > xyarray__entry() that does bounds check, if it fails, return NULL,
> > > otherwise calls __xyarray__entry().
> > >
> > > I see this is frustrating and I should've chimed in earlier, but at
> > > least now this is getting traction, and the end result will be better
> > > not just for the feature you've been dilligently working on,
> > >
> > > Thank you for your persistence,
> >
> > Re-reading, yeah, this can be done in a separate patch, Namhyung, can I
> > have your Reviewed-by? That or an Acked-by?
>
> Sure, for the series:
>
> Acked-by: Namhyung Kim <namhyung@kernel.org>

Ok, b4 failed on it, probably some missing Reply to, so I'll apply it by
hand:

[acme@five perf]$ b4 am -t -s -l --cc-trailers 20210414155412.3697605-1-robh@kernel.org
Looking up https://lore.kernel.org/r/20210414155412.3697605-1-robh%40kernel.org
Grabbing thread from lore.kernel.org/lkml
Analyzing 11 messages in the thread
---
Thread incomplete, attempting to backfill
---
Writing ./v8_20210414_robh_libperf_userspace_counter_access.mbx
[PATCH v8 1/4] tools/include: Add an initial math64.h
+ Acked-by: Namhyung Kim <namhyung@kernel.org>
+ Acked-by: Jiri Olsa <jolsa@redhat.com> (✓ DKIM/redhat.com)
+ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+ Link: https://lore.kernel.org/r/20210414155412.3697605-2-robh@kernel.org
+ Cc: Catalin Marinas <catalin.marinas@arm.com>
+ Cc: Mark Rutland <mark.rutland@arm.com>
+ Cc: Itaru Kitayama <itaru.kitayama@gmail.com>
+ Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
+ Cc: Will Deacon <will@kernel.org>
+ Cc: Ingo Molnar <mingo@redhat.com>
+ Cc: linux-kernel@vger.kernel.org
ERROR: missing [2/4]!
[PATCH v8 3/4] libperf: tests: Add support for verbose printing
+ Acked-by: Jiri Olsa <jolsa@redhat.com> (✓ DKIM/redhat.com)
+ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+ Link: https://lore.kernel.org/r/20210414155412.3697605-3-robh@kernel.org
+ Cc: Catalin Marinas <catalin.marinas@arm.com>
+ Cc: Mark Rutland <mark.rutland@arm.com>
+ Cc: Itaru Kitayama <itaru.kitayama@gmail.com>
+ Cc: Peter Zijlstra <peterz@infradead.org>
+ Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
+ Cc: Namhyung Kim <namhyung@kernel.org>
+ Cc: Will Deacon <will@kernel.org>
+ Cc: Ingo Molnar <mingo@redhat.com>
+ Cc: linux-kernel@vger.kernel.org
[PATCH v8 4/4] libperf: Add support for user space counter access
+ Acked-by: Jiri Olsa <jolsa@redhat.com> (✓ DKIM/redhat.com)
+ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+ Link: https://lore.kernel.org/r/20210414155412.3697605-4-robh@kernel.org
+ Cc: Catalin Marinas <catalin.marinas@arm.com>
+ Cc: Mark Rutland <mark.rutland@arm.com>
+ Cc: Itaru Kitayama <itaru.kitayama@gmail.com>
+ Cc: Peter Zijlstra <peterz@infradead.org>
+ Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
+ Cc: Namhyung Kim <namhyung@kernel.org>
+ Cc: Will Deacon <will@kernel.org>
+ Cc: Ingo Molnar <mingo@redhat.com>
+ Cc: linux-kernel@vger.kernel.org
---
Total patches: 3
---
WARNING: Thread incomplete!
Cover: ./v8_20210414_robh_libperf_userspace_counter_access.cover
Link: https://lore.kernel.org/r/20210414155412.3697605-1-robh@kernel.org
Base: not found
git am ./v8_20210414_robh_libperf_userspace_counter_access.mbx
[acme@five perf]$

\
 
 \ /
  Last update: 2021-04-15 21:39    [W:0.064 / U:0.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site