On Tue, Sep 27, 2016 at 09:51:35AM -0700, Vineet Gupta wrote: > On 09/27/2016 09:37 AM, Kim Phillips wrote: > > On Tue, 27 Sep 2016 07:53:56 -0700 > > Vineet Gupta <Vineet.Gupta1 at synopsys.com> wrote: > > > >> > This doesn't seem to be used anywhere > > I thought so too, until I got this response for an equivalent patch: > > > > https://lkml.org/lkml/2016/8/31/53 > > So this is some sort of "developer shortcut" to quickly enable 2 options with one > option. Purpose seems dubious to me ! It would still be possible to enable vmalloc > backed mmap on x86 by simply enabling that option from Kconfig. PERF_USE_VMALLOC is not a user selectable option. Also DEBUG_PERF_USE_VMALLOC clearly indicates its a _DEBUG_ option. Heck, even the help text says what its for.
