Messages in this thread | | | Date | Thu, 1 Dec 2011 17:28:03 -0500 | From | Christoph Hellwig <> | Subject | Re: [PATCH 01/11] mm: export vmalloc_sync_all symbol to GPL modules |
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On Thu, Dec 01, 2011 at 02:13:37PM -0800, Greg KH wrote: > 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.
Eww - merging stuff without discussion on lkml is more than evil.
Either way, it was guaranteed that drivers/staging is considered out of tree for core code. I'm defintively dead set against exporting anything for staging and opening that slippery slope.
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