linux/arch/x86/mm
David Rientjes 3a5fc0e40c x86: Set hotpluggable nodes in nodes_possible_map
nodes_possible_map does not currently include nodes that have SRAT
entries that are all ACPI_SRAT_MEM_HOT_PLUGGABLE since the bit is
cleared in nodes_parsed if it does not have an online address range.

Unequivocally setting the bit in nodes_parsed is insufficient since
existing code, such as acpi_get_nodes(), assumes all nodes in the map
have online address ranges.  In fact, all code using nodes_parsed
assumes such nodes represent an address range of online memory.

nodes_possible_map is created by unioning nodes_parsed and
cpu_nodes_parsed; the former represents nodes with online memory and
the latter represents memoryless nodes.  We now set the bit for
hotpluggable nodes in cpu_nodes_parsed so that it also gets set in
nodes_possible_map.

[ hpa: Haicheng Li points out that this makes the naming of the
  variable cpu_nodes_parsed somewhat counterintuitive.  However, leave
  it as is in the interest of keeping the pure bug fix patch small. ]

Signed-off-by: David Rientjes <rientjes@google.com>
Tested-by: Haicheng Li <haicheng.li@linux.intel.com>
LKML-Reference: <alpine.DEB.2.00.1001201152040.30528@chino.kir.corp.google.com>
Cc: <stable@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-23 06:21:57 +01:00
..
kmemcheck x86, kmemcheck: Use KERN_WARNING for error reporting 2009-12-28 10:28:35 +01:00
dump_pagetables.c x86: remove (null) in /sys kernel_page_tables 2009-04-14 11:50:22 +02:00
extable.c x86, 64-bit: Move K8 B step iret fixup to fault entry asm 2009-10-12 18:29:46 +02:00
fault.c Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-05 15:33:27 -08:00
gup.c Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 11:29:32 -07:00
highmem_32.c Merge branch 'kvm-updates/2.6.32' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2009-09-14 17:43:43 -07:00
hugetlbpage.c x86: ignore VM_LOCKED when determining if hugetlb-backed page tables can be shared or not 2009-05-29 08:40:03 -07:00
init_32.c mm: make totalhigh_pages unsigned long 2010-01-11 09:34:03 -08:00
init_64.c x86_64, cpa: Use only text section in set_kernel_text_rw/ro 2009-11-02 17:17:24 +01:00
init.c x86, mm: Report state of NX protections during boot 2009-11-16 13:44:59 -08:00
iomap_32.c x86, pat: Add PAT reserve free to io_mapping* APIs 2009-08-26 15:41:16 -07:00
ioremap.c Merge branch 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-08 13:34:17 -08:00
k8topology_64.c x86: Move find_smp_config() earlier and avoid bootmem usage 2009-11-24 12:10:51 +01:00
kmmio.c hw-breakpoints, perf: Fix broken mmiotrace due to dr6 by reference change 2010-01-17 08:01:44 +01:00
Makefile x86: split NX setup into separate file to limit unstack-protected code 2009-09-21 13:56:58 -07:00
memtest.c x86: memtest: use pointers of equal type for comparison 2009-06-11 16:26:35 +02:00
mmap.c x86: Increase MIN_GAP to include randomized stack 2009-09-10 17:00:12 -07:00
mmio-mod.c x86: Fix build warning in arch/x86/mm/mmio-mod.c 2009-12-14 08:55:43 +01:00
numa_32.c x86: Export k8 physical topology 2009-10-12 22:56:45 +02:00
numa_64.c x86, numa: Use near(er) online node instead of roundrobin for NUMA 2009-11-23 10:06:24 +01:00
numa.c cpumask: convert node_to_cpumask_map[] to cpumask_var_t 2009-03-13 14:35:31 +01:00
pageattr-test.c
pageattr.c x86, pageattr: Make set_memory_(x|nx) aware of NX support 2009-11-16 13:44:58 -08:00
pat.c vfs: Implement proper O_SYNC semantics 2009-12-10 15:02:50 +01:00
pf_in.c
pf_in.h
pgtable_32.c x86/32: no need to use set_pte_present in set_pte_vaddr 2009-03-19 14:04:18 +01:00
pgtable.c x86, 32-bit: Fix double accounting in reserve_top_address() 2009-08-04 16:27:29 +02:00
physaddr.c x86: split __phys_addr out into separate file 2009-09-10 11:48:55 -07:00
physaddr.h x86: split __phys_addr out into separate file 2009-09-10 11:48:55 -07:00
setup_nx.c x86, mm: Report state of NX protections during boot 2009-11-16 13:44:59 -08:00
srat_32.c x86: Fix checking of SRAT when node 0 ram is not from 0 2009-12-16 16:43:37 -08:00
srat_64.c x86: Set hotpluggable nodes in nodes_possible_map 2010-01-23 06:21:57 +01:00
testmmiotrace.c testmmiotrace.c: Add and use pr_fmt(fmt) 2009-10-12 08:05:41 +02:00
tlb.c x86: Eliminate redundant/contradicting cache line size config options 2009-11-19 04:58:34 +01:00