On Thu, 2012-01-26 at 08:41 -0600, Brian King wrote: > CC'ing linuxppc-dev... > > > On 01/26/2012 08:18 AM, Seth Jennings wrote: > > Hey Dave, > > > > So I submitted the zsmalloc patches to lkml at the beginning > > of the year > > > > https://lkml.org/lkml/2012/1/9/389 > > > > I found there are two functions Nitin used in the mapping > > functions that are not supported in the powerpc arch: > > set_pte() and __flush_tlb_one().
.../... The arch management of page tables can be tricky indeed :-) I need to have a better understanding of what you are doing to see how I can try to adapt it to power. set_pte() is long gone on all archs really (or if it's still there it's not meant to be used as is), use set_pte_at(). __flush_tlb_one() doesn't mean anything as an arch independent functionality. We have a local_flush_tlb_page() that -might- do what you want but why in hell is that patch not using proper existing interfaces ? Can you explain to me a bit more the whole business in this patch set about doing kmap_atomic() vs. manually trying to populate the PTEs ? Why not just use two kmap atomic entries ? If interrupts are disabled kmap_atomic() should give you contiguous ones I suppose (unless NMIs are allowed to use kmap_atomic, are they ?) Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
