From: Paul Moore <pmoore@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-audit@redhat.com,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Dmitry Vyukov <dvyukov@google.com>
Subject: Re: Audit fixes for v4.11 (#1)
Date: Sun, 26 Mar 2017 11:18:21 -0400 [thread overview]
Message-ID: <CAGH-Kgu4=rnUoYE93NQtf4KyHqjuTeoBdQ1+hb68uaFiqe-oYA@mail.gmail.com> (raw)
In-Reply-To: <CA+55aFyLuR8rxSjps-FF=aMaUpy4gGQpNxLAgDqSbVm7fqdaVA@mail.gmail.com>
On Sat, Mar 25, 2017 at 6:23 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> On Fri, Mar 24, 2017 at 2:39 PM, Paul Moore <pmoore@redhat.com> wrote:
>>
>> This code has passed our testsuite without problem and it has held up
>> to my ad-hoc stress tests (arguably better than the existing code),
>> please consider pulling this as fix for the next v4.11-rcX tag.
>
> Ok, pulled. However, looking at the changes in the patch it becomes
> obvious that it is now completely bogus to inline the
> "audit_signal_info()" function.
>
> That silly inline in the header file now only generates bigger and
> slower code, since that inlined function now calls another function
> auditd_test_task() that is *not* inlined, so it ends up being a
> function call anyway.
Good catch. I was so worried about the other issues in this patch I
missed this obvious point.
> It would be much better to just unlinline audit_signal_info(), move it
> into kernel/audit.c, and let the compiler then inline the
> __audit_signal_info() helper function (or just fold it into that
> function manually as part of the move).
>
> The whole reason for that inlined part, and the uninlined
> __audit_signal_info() helper was that the code *used* to be able to
> avoid a function call entirely. That reason is now gone.
Agreed. Normally I would say let's just fix it in audit/next and I'll
send it to you during the next merge window; however, since we're
breaking the whole point of this inline in the -rcX stage, and the
uninline'ing patch would be rather trivial, would you prefer I send it
to you now for v4.11?
--
paul moore
security @ redhat
next prev parent reply other threads:[~2017-03-26 15:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-24 21:39 Audit fixes for v4.11 (#1) Paul Moore
2017-03-25 14:49 ` [GIT PULL] " Paul Moore
2017-03-25 22:23 ` Linus Torvalds
2017-03-26 15:18 ` Paul Moore [this message]
2017-03-26 17:23 ` Linus Torvalds
2017-03-27 19:05 ` Paul Moore
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