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Date: Thu, 05 Oct 2006 19:09:48 +1000
From: Benjamin Herrenschmidt <benh@...nel.crashing.org>
To: Mel Gorman <mel@....ul.ie>
Cc: Judith Lebzelter <judith@...l.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
akpm@...l.org, Paul Mackerras <paulus@...ba.org>
Subject: Re: 2.6.18-rc6-mm2: fix for error compiling ppc/mm/init.c
On Wed, 2006-10-04 at 15:12 +0100, Mel Gorman wrote:
> On Wed, 4 Oct 2006, Benjamin Herrenschmidt wrote:
>
> >
> > Patch looks good on a quick look. I will try to test later today at
> > which point, it should go in asap, current upstream doesn't boot on
> > CONFIG_HIGHMEM powerpc, which is a lot of them...
> >
>
> The patch has passed tests here on x86, x86_64, ia64 and ppc64. Testing on
> powerpc with HIGHMEM is a configuration I cannot test. If you say it
> passes, I'll see can I get it pushed before 2.6.19-rc1
Too late for rc1 :( I'll ask Johannes to test as I don't have access to
the box atm.
Thanks.
Ben.
> Thanks
>
> >>
> >> diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.18-git19-clean/arch/i386/kernel/setup.c linux-2.6.18-git19-use_zone_symbolic_names/arch/i386/kernel/setup.c
> >> --- linux-2.6.18-git19-clean/arch/i386/kernel/setup.c 2006-10-03 09:12:56.000000000 +0100
> >> +++ linux-2.6.18-git19-use_zone_symbolic_names/arch/i386/kernel/setup.c 2006-10-03 11:15:59.000000000 +0100
> >> @@ -1083,16 +1083,15 @@ static unsigned long __init setup_memory
> >>
> >> void __init zone_sizes_init(void)
> >> {
> >> + unsigned long max_zone_pfns[MAX_NR_ZONES];
> >> + memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
> >> + max_zone_pfns[ZONE_DMA] =
> >> + virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
> >> + max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
> >> #ifdef CONFIG_HIGHMEM
> >> - unsigned long max_zone_pfns[MAX_NR_ZONES] = {
> >> - virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT,
> >> - max_low_pfn,
> >> - highend_pfn};
> >> + max_zone_pfns[ZONE_HIGHMEM] = highend_pfn;
> >> add_active_range(0, 0, highend_pfn);
> >> #else
> >> - unsigned long max_zone_pfns[MAX_NR_ZONES] = {
> >> - virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT,
> >> - max_low_pfn};
> >> add_active_range(0, 0, max_low_pfn);
> >> #endif
> >>
> >> diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.18-git19-clean/arch/i386/mm/discontig.c linux-2.6.18-git19-use_zone_symbolic_names/arch/i386/mm/discontig.c
> >> --- linux-2.6.18-git19-clean/arch/i386/mm/discontig.c 2006-10-03 09:12:56.000000000 +0100
> >> +++ linux-2.6.18-git19-use_zone_symbolic_names/arch/i386/mm/discontig.c 2006-10-03 11:17:27.000000000 +0100
> >> @@ -357,11 +357,12 @@ void __init numa_kva_reserve(void)
> >> void __init zone_sizes_init(void)
> >> {
> >> int nid;
> >> - unsigned long max_zone_pfns[MAX_NR_ZONES] = {
> >> - virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT,
> >> - max_low_pfn,
> >> - highend_pfn
> >> - };
> >> + unsigned long max_zone_pfns[MAX_NR_ZONES];
> >> + memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
> >> + max_zone_pfns[ZONE_DMA] =
> >> + virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
> >> + max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
> >> + max_zone_pfns[ZONE_HIGHMEM] = highend_pfn;
> >>
> >> /* If SRAT has not registered memory, register it now */
> >> if (find_max_pfn_with_active_regions() == 0) {
> >> diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.18-git19-clean/arch/ia64/mm/contig.c linux-2.6.18-git19-use_zone_symbolic_names/arch/ia64/mm/contig.c
> >> --- linux-2.6.18-git19-clean/arch/ia64/mm/contig.c 2006-10-03 09:12:56.000000000 +0100
> >> +++ linux-2.6.18-git19-use_zone_symbolic_names/arch/ia64/mm/contig.c 2006-10-03 11:21:09.000000000 +0100
> >> @@ -233,6 +233,7 @@ paging_init (void)
> >> efi_memmap_walk(count_pages, &num_physpages);
> >>
> >> max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
> >> + memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
> >> max_zone_pfns[ZONE_DMA] = max_dma;
> >> max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
> >>
> >> diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.18-git19-clean/arch/ia64/mm/discontig.c linux-2.6.18-git19-use_zone_symbolic_names/arch/ia64/mm/discontig.c
> >> --- linux-2.6.18-git19-clean/arch/ia64/mm/discontig.c 2006-10-03 09:12:56.000000000 +0100
> >> +++ linux-2.6.18-git19-use_zone_symbolic_names/arch/ia64/mm/discontig.c 2006-10-03 11:21:54.000000000 +0100
> >> @@ -709,6 +709,7 @@ void __init paging_init(void)
> >> max_pfn = mem_data[node].max_pfn;
> >> }
> >>
> >> + memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
> >> max_zone_pfns[ZONE_DMA] = max_dma;
> >> max_zone_pfns[ZONE_NORMAL] = max_pfn;
> >> free_area_init_nodes(max_zone_pfns);
> >> diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.18-git19-clean/arch/powerpc/mm/mem.c linux-2.6.18-git19-use_zone_symbolic_names/arch/powerpc/mm/mem.c
> >> --- linux-2.6.18-git19-clean/arch/powerpc/mm/mem.c 2006-10-03 09:12:56.000000000 +0100
> >> +++ linux-2.6.18-git19-use_zone_symbolic_names/arch/powerpc/mm/mem.c 2006-10-03 11:10:57.000000000 +0100
> >> @@ -307,11 +307,12 @@ void __init paging_init(void)
> >> top_of_ram, total_ram);
> >> printk(KERN_DEBUG "Memory hole size: %ldMB\n",
> >> (top_of_ram - total_ram) >> 20);
> >> + memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
> >> #ifdef CONFIG_HIGHMEM
> >> - max_zone_pfns[0] = total_lowmem >> PAGE_SHIFT;
> >> - max_zone_pfns[1] = top_of_ram >> PAGE_SHIFT;
> >> + max_zone_pfns[ZONE_DMA] = total_lowmem >> PAGE_SHIFT;
> >> + max_zone_pfns[ZONE_HIGHMEM] = top_of_ram >> PAGE_SHIFT;
> >> #else
> >> - max_zone_pfns[0] = top_of_ram >> PAGE_SHIFT;
> >> + max_zone_pfns[ZONE_DMA] = top_of_ram >> PAGE_SHIFT;
> >> #endif
> >> free_area_init_nodes(max_zone_pfns);
> >> }
> >> diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.18-git19-clean/arch/powerpc/mm/numa.c linux-2.6.18-git19-use_zone_symbolic_names/arch/powerpc/mm/numa.c
> >> --- linux-2.6.18-git19-clean/arch/powerpc/mm/numa.c 2006-10-03 09:12:56.000000000 +0100
> >> +++ linux-2.6.18-git19-use_zone_symbolic_names/arch/powerpc/mm/numa.c 2006-10-03 11:12:01.000000000 +0100
> >> @@ -617,9 +617,9 @@ void __init do_init_bootmem(void)
> >>
> >> void __init paging_init(void)
> >> {
> >> - unsigned long max_zone_pfns[MAX_NR_ZONES] = {
> >> - lmb_end_of_DRAM() >> PAGE_SHIFT
> >> - };
> >> + unsigned long max_zone_pfns[MAX_NR_ZONES];
> >> + memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
> >> + max_zone_pfns[ZONE_DMA] = lmb_end_of_DRAM() >> PAGE_SHIFT;
> >> free_area_init_nodes(max_zone_pfns);
> >> }
> >>
> >> diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.18-git19-clean/arch/ppc/mm/init.c linux-2.6.18-git19-use_zone_symbolic_names/arch/ppc/mm/init.c
> >> --- linux-2.6.18-git19-clean/arch/ppc/mm/init.c 2006-10-03 09:12:56.000000000 +0100
> >> +++ linux-2.6.18-git19-use_zone_symbolic_names/arch/ppc/mm/init.c 2006-10-03 11:13:46.000000000 +0100
> >> @@ -374,11 +374,12 @@ void __init paging_init(void)
> >> end_pfn = start_pfn + (total_memory >> PAGE_SHIFT);
> >> add_active_range(0, start_pfn, end_pfn);
> >>
> >> + memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
> >> #ifdef CONFIG_HIGHMEM
> >> - max_zone_pfns[0] = total_lowmem >> PAGE_SHIFT;
> >> - max_zone_pfns[1] = total_memory >> PAGE_SHIFT;
> >> + max_zone_pfns[ZONE_DMA] = total_lowmem >> PAGE_SHIFT;
> >> + max_zone_pfns[ZONE_HIGHMEM] = total_memory >> PAGE_SHIFT;
> >> #else
> >> - max_zone_pfns[0] = total_memory >> PAGE_SHIFT;
> >> + max_zone_pfns[ZONE_DMA] = total_memory >> PAGE_SHIFT;
> >> #endif /* CONFIG_HIGHMEM */
> >> free_area_init_nodes(max_zone_pfns);
> >> }
> >> diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.18-git19-clean/arch/x86_64/mm/init.c linux-2.6.18-git19-use_zone_symbolic_names/arch/x86_64/mm/init.c
> >> --- linux-2.6.18-git19-clean/arch/x86_64/mm/init.c 2006-10-03 09:12:56.000000000 +0100
> >> +++ linux-2.6.18-git19-use_zone_symbolic_names/arch/x86_64/mm/init.c 2006-10-03 11:18:54.000000000 +0100
> >> @@ -406,9 +406,12 @@ void __cpuinit zap_low_mappings(int cpu)
> >> #ifndef CONFIG_NUMA
> >> void __init paging_init(void)
> >> {
> >> - unsigned long max_zone_pfns[MAX_NR_ZONES] = {MAX_DMA_PFN,
> >> - MAX_DMA32_PFN,
> >> - end_pfn};
> >> + unsigned long max_zone_pfns[MAX_NR_ZONES];
> >> + memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
> >> + max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
> >> + max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
> >> + max_zone_pfns[ZONE_NORMAL] = end_pfn;
> >> +
> >> memory_present(0, 0, end_pfn);
> >> sparse_init();
> >> free_area_init_nodes(max_zone_pfns);
> >> diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.18-git19-clean/arch/x86_64/mm/numa.c linux-2.6.18-git19-use_zone_symbolic_names/arch/x86_64/mm/numa.c
> >> --- linux-2.6.18-git19-clean/arch/x86_64/mm/numa.c 2006-10-03 09:12:56.000000000 +0100
> >> +++ linux-2.6.18-git19-use_zone_symbolic_names/arch/x86_64/mm/numa.c 2006-10-03 11:19:47.000000000 +0100
> >> @@ -338,9 +338,11 @@ static void __init arch_sparse_init(void
> >> void __init paging_init(void)
> >> {
> >> int i;
> >> - unsigned long max_zone_pfns[MAX_NR_ZONES] = { MAX_DMA_PFN,
> >> - MAX_DMA32_PFN,
> >> - end_pfn};
> >> + unsigned long max_zone_pfns[MAX_NR_ZONES];
> >> + memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
> >> + max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
> >> + max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
> >> + max_zone_pfns[ZONE_NORMAL] = end_pfn;
> >>
> >> arch_sparse_init();
> >>
>
-
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