Messages in this thread | | | Date | Thu, 1 Dec 2011 14:13:37 -0800 | From | Greg KH <> | Subject | Re: [PATCH 01/11] mm: export vmalloc_sync_all symbol to GPL modules |
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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
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