From: Greg KH <greg@kroah.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
devel@driverdev.osuosl.org, lttng-dev@lists.lttng.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Christoph Lameter <cl@linux-foundation.org>,
Tejun Heo <tj@kernel.org>, David Howells <dhowells@redhat.com>,
David McCullough <davidm@snapgear.com>,
D Jeff Dionne <jeff@uClinux.org>,
Greg Ungerer <gerg@snapgear.com>,
Paul Mundt <lethal@linux-sh.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 01/11] mm: export vmalloc_sync_all symbol to GPL modules
Date: Thu, 1 Dec 2011 14:13:37 -0800 [thread overview]
Message-ID: <20111201221337.GB3365@kroah.com> (raw)
In-Reply-To: <20111201215700.GA16782@infradead.org>
On Thu, Dec 01, 2011 at 04:57:00PM -0500, Christoph Hellwig wrote:
> On Thu, Dec 01, 2011 at 04:41:13PM -0500, Mathieu Desnoyers wrote:
> > LTTng needs this symbol exported. It calls it to ensure its tracing
> > buffers and allocated data structures never trigger a page fault. This
> > is required to handle page fault handler tracing and NMI tracing
> > gracefully.
>
> We:
>
> a) don't export symbols unless they have an intree-user
lttng is now in-tree in the drivers/staging/ area. See linux-next for
details if you are curious.
> b) especially don't export something as lowlevel as this one.
Mathieu, there's nothing else you can do to get this information? Or
does lttng really want such lowlevel data?
thanks,
greg k-h
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <greg@kroah.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
devel@driverdev.osuosl.org, lttng-dev@lists.lttng.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Christoph Lameter <cl@linux-foundation.org>,
Tejun Heo <tj@kernel.org>, David Howells <dhowells@redhat.com>,
David McCullough <davidm@snapgear.com>,
D Jeff Dionne <jeff@uClinux.org>,
Greg Ungerer <gerg@snapgear.com>,
Paul Mundt <lethal@linux-sh.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 01/11] mm: export vmalloc_sync_all symbol to GPL modules
Date: Thu, 1 Dec 2011 14:13:37 -0800 [thread overview]
Message-ID: <20111201221337.GB3365@kroah.com> (raw)
In-Reply-To: <20111201215700.GA16782@infradead.org>
On Thu, Dec 01, 2011 at 04:57:00PM -0500, Christoph Hellwig wrote:
> On Thu, Dec 01, 2011 at 04:41:13PM -0500, Mathieu Desnoyers wrote:
> > LTTng needs this symbol exported. It calls it to ensure its tracing
> > buffers and allocated data structures never trigger a page fault. This
> > is required to handle page fault handler tracing and NMI tracing
> > gracefully.
>
> We:
>
> a) don't export symbols unless they have an intree-user
lttng is now in-tree in the drivers/staging/ area. See linux-next for
details if you are curious.
> b) especially don't export something as lowlevel as this one.
Mathieu, there's nothing else you can do to get this information? Or
does lttng really want such lowlevel data?
thanks,
greg k-h
next prev parent reply other threads:[~2011-12-01 22:14 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1322775683-8741-1-git-send-email-mathieu.desnoyers@efficios.com>
2011-12-01 21:41 ` [PATCH 01/11] mm: export vmalloc_sync_all symbol to GPL modules Mathieu Desnoyers
2011-12-01 21:41 ` Mathieu Desnoyers
2011-12-01 21:57 ` Christoph Hellwig
2011-12-01 21:57 ` Christoph Hellwig
2011-12-01 22:13 ` Greg KH [this message]
2011-12-01 22:13 ` Greg KH
2011-12-01 22:19 ` Mathieu Desnoyers
2011-12-01 22:19 ` Mathieu Desnoyers
2011-12-01 22:41 ` Greg KH
2011-12-01 22:41 ` Greg KH
2011-12-01 22:28 ` Christoph Hellwig
2011-12-01 22:28 ` Christoph Hellwig
2011-12-01 23:00 ` Greg KH
2011-12-01 23:00 ` Greg KH
2011-12-01 21:57 ` Christoph Hellwig
2011-12-01 21:57 ` Christoph Hellwig
2011-12-01 21:57 ` Christoph Hellwig
2011-12-01 21:41 ` [PATCH 03/11] fs/splice: export splice_to_pipe " Mathieu Desnoyers
2011-12-02 7:19 ` Jens Axboe
2011-12-02 12:32 ` Mathieu Desnoyers
2011-12-01 21:41 ` [PATCH 09/11] sched: export task_prio " Mathieu Desnoyers
2011-12-01 21:56 ` Peter Zijlstra
2011-12-01 22:04 ` Mathieu Desnoyers
2011-12-01 22:10 ` Peter Zijlstra
2011-12-01 22:15 ` Mathieu Desnoyers
2011-12-01 22:36 ` Mathieu Desnoyers
2011-12-01 23:05 ` Peter Zijlstra
2011-12-02 13:51 ` Mathieu Desnoyers
2011-12-01 23:06 ` Peter Zijlstra
2011-12-01 23:18 ` Greg KH
2011-12-01 23:47 ` Mathieu Desnoyers
2011-12-01 22:14 ` Greg KH
2011-12-01 22:20 ` Mathieu Desnoyers
2011-12-01 23:07 ` Peter Zijlstra
2011-12-01 23:17 ` Greg KH
2011-12-05 14:17 ` Ingo Molnar
2011-12-06 21:44 ` Greg KH
2011-12-08 5:23 ` Ingo Molnar
2011-12-08 23:27 ` Greg KH
2011-12-19 10:49 ` Ingo Molnar
2011-12-19 15:30 ` [lttng-dev] " Mathieu Desnoyers
2011-12-20 11:08 ` Ingo Molnar
2011-12-20 21:46 ` Frank Rowand
2011-12-23 10:51 ` Ingo Molnar
2011-12-21 18:47 ` Aaron Spear
2011-12-21 18:58 ` Christoph Hellwig
2011-12-23 16:46 ` Perf ABI (was: Re: [lttng-dev] [PATCH 09/11] sched: export task_prio to GPL modules) Mathieu Desnoyers
2011-12-23 17:21 ` Ted Ts'o
2011-12-23 18:16 ` Mathieu Desnoyers
2011-12-25 17:46 ` Ted Ts'o
2012-01-12 14:09 ` Mathieu Desnoyers
2012-01-12 14:54 ` Steven Rostedt
2012-01-12 15:39 ` [lttng-dev] Perf ABI (was: " Mathieu Desnoyers
2012-01-12 15:53 ` Steven Rostedt
2012-01-12 15:59 ` Steven Rostedt
2012-01-12 16:27 ` Mathieu Desnoyers
2012-01-12 16:34 ` Steven Rostedt
2012-01-12 20:00 ` Greg KH
2012-01-16 8:55 ` Ingo Molnar
2011-12-07 22:57 ` [PATCH 09/11] sched: export task_prio to GPL modules Mathieu Desnoyers
2011-12-08 5:40 ` Ingo Molnar
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=20111201221337.GB3365@kroah.com \
--to=greg@kroah.com \
--cc=cl@linux-foundation.org \
--cc=davidm@snapgear.com \
--cc=devel@driverdev.osuosl.org \
--cc=dhowells@redhat.com \
--cc=gerg@snapgear.com \
--cc=hch@infradead.org \
--cc=jeff@uClinux.org \
--cc=lethal@linux-sh.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=lttng-dev@lists.lttng.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=tj@kernel.org \
--cc=torvalds@linux-foundation.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.