vmcoreinfo: fix the configuration dependencies

This patch fixes the configuration dependencies in the vmcoreinfo data.

i386's "node_data" is defined in arch/x86/mm/discontig_32.c,
and x86_64's one is defined in arch/x86/mm/numa_64.c.
They depend on CONFIG_NUMA:
  arch/x86/mm/Makefile_32:7
    obj-$(CONFIG_NUMA) += discontig_32.o
  arch/x86/mm/Makefile_64:7
    obj-$(CONFIG_NUMA) += numa_64.o

ia64's "pgdat_list" is defined in arch/ia64/mm/discontig.c,
and it depends on CONFIG_DISCONTIGMEM and CONFIG_SPARSEMEM:
  arch/ia64/mm/Makefile:9-10
    obj-$(CONFIG_DISCONTIGMEM) += discontig.o
    obj-$(CONFIG_SPARSEMEM)    += discontig.o

ia64's "node_memblk" is defined in arch/ia64/mm/numa.c,
and it depends on CONFIG_NUMA:
  arch/ia64/mm/Makefile:8
    obj-$(CONFIG_NUMA)         += numa.o

Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Acked-by: Simon Horman <horms@verge.net.au>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 9 insertions, 3 deletions

diff --git a/arch/ia64/kernel/machine_kexec.c b/arch/ia64/kernel/machine_kexec.c
index 6e725eff271b..0823de1f6ebe 100644
--- a/arch/ia64/kernel/machine_kexec.c
+++ b/arch/ia64/kernel/machine_kexec.c
@@ -129,10 +129,11 @@ void machine_kexec(struct kimage *image)
 
 void arch_crash_save_vmcoreinfo(void)
 {
-#if defined(CONFIG_ARCH_DISCONTIGMEM_ENABLE) && defined(CONFIG_NUMA)
+#if defined(CONFIG_DISCONTIGMEM) || defined(CONFIG_SPARSEMEM)
         VMCOREINFO_SYMBOL(pgdat_list);
         VMCOREINFO_LENGTH(pgdat_list, MAX_NUMNODES);
-
+#endif
+#ifdef CONFIG_NUMA
         VMCOREINFO_SYMBOL(node_memblk);
         VMCOREINFO_LENGTH(node_memblk, NR_NODE_MEMBLKS);
         VMCOREINFO_STRUCT_SIZE(node_memblk_s);
diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
index c1cfd60639d4..d0b234c9fc31 100644
--- a/arch/x86/kernel/machine_kexec_32.c
+++ b/arch/x86/kernel/machine_kexec_32.c
@@ -151,7 +151,7 @@ NORET_TYPE void machine_kexec(struct kimage *image)
 
 void arch_crash_save_vmcoreinfo(void)
 {
-#ifdef CONFIG_ARCH_DISCONTIGMEM_ENABLE
+#ifdef CONFIG_NUMA
         VMCOREINFO_SYMBOL(node_data);
         VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
 #endif
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index a1fef42f8cdb..236d2f8f7ddc 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -234,5 +234,10 @@ NORET_TYPE void machine_kexec(struct kimage *image)
 void arch_crash_save_vmcoreinfo(void)
 {
         VMCOREINFO_SYMBOL(init_level4_pgt);
+
+#ifdef CONFIG_NUMA
+        VMCOREINFO_SYMBOL(node_data);
+        VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
+#endif
 }