From: Nitesh Lal <nilal@redhat.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: linux-kernel@vger.kernel.org,
Nicolas Saenz Julienne <nsaenzju@redhat.com>,
Frederic Weisbecker <frederic@kernel.org>,
Christoph Lameter <cl@linux.com>,
Juri Lelli <juri.lelli@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Alex Belits <abelits@belits.com>, Peter Xu <peterx@redhat.com>
Subject: Re: [patch V3 2/8] add prctl task isolation prctl docs and samples
Date: Wed, 1 Sep 2021 13:49:53 -0400 [thread overview]
Message-ID: <CAFki+L=wYqKZon8TRdMhOHfS3goh7yHXQFDb7RXM=iOJeZJBPw@mail.gmail.com> (raw)
In-Reply-To: <20210901173401.GB48995@fuller.cnet>
On Wed, Sep 1, 2021 at 1:38 PM Marcelo Tosatti <mtosatti@redhat.com> wrote:
>
> On Wed, Sep 01, 2021 at 09:11:56AM -0400, Nitesh Lal wrote:
> > On Tue, Aug 24, 2021 at 11:42 AM Marcelo Tosatti <mtosatti@redhat.com> wrote:
> > >
> > > Add documentation and userspace sample code for prctl
> > > task isolation interface.
> > >
> > > Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
> > >
> > > ---
> > > Documentation/userspace-api/task_isolation.rst | 211 +++++++++++++++++++++++++
> > > samples/Kconfig | 7
> > > samples/Makefile | 1
> > > samples/task_isolation/Makefile | 9 +
> > > samples/task_isolation/task_isol.c | 83 +++++++++
> > > samples/task_isolation/task_isol.h | 9 +
> > > samples/task_isolation/task_isol_userloop.c | 56 ++++++
> > > 7 files changed, 376 insertions(+)
> >
> > [...]
> >
> > > + if (ret) {
> > > + perror("mlock");
> > > + return EXIT_FAILURE;
> > > + }
> > > +
> > > + ret = task_isol_setup();
> > > + if (ret)
> > > + return EXIT_FAILURE;
> >
> > The above check condition should be 'ret == -1', isn't it?
>
> task_isol_setup returns 0 on success, so fail to see the point
> of testing for ret == -1 rather than ret != 0 ?
>
Hmm, could be something that I misinterpreted.
I will double-check.
--
Thanks
Nitesh
next prev parent reply other threads:[~2021-09-01 17:50 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-24 15:24 [patch V3 0/8] extensible prctl task isolation interface and vmstat sync Marcelo Tosatti
2021-08-24 15:24 ` [patch V3 1/8] add basic task isolation prctl interface Marcelo Tosatti
2021-08-24 15:24 ` [patch V3 2/8] add prctl task isolation prctl docs and samples Marcelo Tosatti
2021-08-26 9:59 ` Frederic Weisbecker
2021-08-26 12:11 ` Marcelo Tosatti
2021-08-26 19:15 ` Christoph Lameter
2021-08-26 20:37 ` Marcelo Tosatti
2021-08-27 13:08 ` Frederic Weisbecker
2021-08-27 14:44 ` Marcelo Tosatti
2021-08-30 11:38 ` Frederic Weisbecker
2021-09-01 13:11 ` Nitesh Lal
2021-09-01 17:34 ` Marcelo Tosatti
2021-09-01 17:49 ` Nitesh Lal [this message]
2021-08-24 15:24 ` [patch V3 3/8] task isolation: sync vmstats on return to userspace Marcelo Tosatti
2021-09-10 13:49 ` nsaenzju
2021-08-24 15:24 ` [patch V3 4/8] procfs: add per-pid task isolation state Marcelo Tosatti
2021-08-24 15:24 ` [patch V3 5/8] task isolation: sync vmstats conditional on changes Marcelo Tosatti
2021-08-25 9:46 ` Christoph Lameter
2021-08-24 15:24 ` [patch V3 6/8] KVM: x86: call isolation prepare from VM-entry code path Marcelo Tosatti
2021-08-24 15:24 ` [patch V3 7/8] mm: vmstat: move need_update Marcelo Tosatti
2021-08-24 15:24 ` [patch V3 8/8] mm: vmstat_refresh: avoid queueing work item if cpu stats are clean Marcelo Tosatti
2021-08-25 9:30 ` Christoph Lameter
2021-09-01 13:05 ` Nitesh Lal
2021-09-01 17:32 ` Marcelo Tosatti
2021-09-01 18:33 ` Marcelo Tosatti
2021-09-03 17:38 ` Nitesh Lal
2021-08-25 10:02 ` [patch V3 0/8] extensible prctl task isolation interface and vmstat sync Marcelo Tosatti
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