Messages in this thread | | | Date | Mon, 25 Jun 2012 10:19:39 -0700 | From | Greg Kroah-Hartman <> | Subject | Re: [PATCH 2/3] zsmalloc: add generic path and remove x86 dependency |
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On Mon, Jun 25, 2012 at 12:10:57PM -0500, Seth Jennings wrote: > On 06/25/2012 11:59 AM, Greg Kroah-Hartman wrote: > > On Mon, Jun 25, 2012 at 11:14:37AM -0500, Seth Jennings wrote: > >> This patch adds generic pages mapping methods that > >> work on all archs in the absence of support for > >> local_tlb_flush_kernel_range() advertised by the > >> arch through __HAVE_LOCAL_TLB_FLUSH_KERNEL_RANGE > > > > Is this #define something that other arches define now? Or is this > > something new that you are adding here? > > Something new I'm adding.
Ah, ok.
> The precedent for this approach is the __HAVE_ARCH_* defines > that let the arch independent stuff know if a generic > function needs to be defined or if there is an arch specific > function. > > You can "grep -R __HAVE_ARCH_* arch/x86/" to see the ones > that already exist. > > I guess I should have called it > __HAVE_ARCH_LOCAL_TLB_FLUSH_KERNEL_RANGE though, not > __HAVE_LOCAL_TLB_FLUSH_KERNEL_RANGE.
You need to get the mm developers to agree with this before I can take it.
But, why even depend on this? Can't you either live without it, or just implement it for all arches somehow?
thanks,
greg k-h
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