From: Steven Rostedt <rostedt@goodmis.org>
To: Mark Rutland <mark.rutland@arm.com>
Cc: Torsten Duwe <duwe@suse.de>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>
Subject: Re: KASAN_INLINE && patchable-function-entry
Date: Thu, 21 Nov 2019 14:27:37 -0500 [thread overview]
Message-ID: <20191121142737.69978ef9@oasis.local.home> (raw)
In-Reply-To: <20191121183630.GA3668@lakrids.cambridge.arm.com>
On Thu, 21 Nov 2019 18:36:32 +0000
Mark Rutland <mark.rutland@arm.com> wrote:
> As a heads-up to the ftrace folk, I think it's possible to work around
> this specific issue in the kernel by allowing the arch code to filter
> out call sites at init time (probably in ftrace_init_nop()), but I
> haven't put that together yet.
If you need to make some code invisible to ftrace at init time, it can
be possible by setting the dyn_ftrace rec flag to DISABLED, but this
can be cleared, which we would need a way to keep it from being
cleared, which shouldn't be too hard.
Is that what you would be looking for?
-- Steve
next prev parent reply other threads:[~2019-11-21 19:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-21 18:36 KASAN_INLINE && patchable-function-entry Mark Rutland
2019-11-21 19:27 ` Steven Rostedt [this message]
2019-11-22 11:32 ` Mark Rutland
2019-11-22 11:35 ` Mark Rutland
2019-11-22 9:27 ` Torsten Duwe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191121142737.69978ef9@oasis.local.home \
--to=rostedt@goodmis.org \
--cc=duwe@suse.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mingo@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).