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authorHorms <horms@verge.net.au>2006-12-12 17:49:03 +0900
committerTony Luck <tony.luck@intel.com>2006-12-12 10:11:00 -0800
commit45a98fc622ae700eed34eb2be00743910d50dbe1 (patch)
treee5e5279c25582a7d26c37af189330318fe0f42dd /arch/ia64/mm/contig.c
parentadf142e379bd20ad906a7e36f722eaabb3b44b0c (diff)
[IA64] CONFIG_KEXEC/CONFIG_CRASH_DUMP permutations
Actually, on reflection I think that there is a good case for keeping the options separate. I am thinking particularly of people who want a very small crashdump kernel and thus don't want to compile in kexec. The patch below should fix things up so that all valid combinations of KEXEC, CRASH_DUMP and VMCORE compile cleanly - VMCORE depends on CRASH_DUMP which is why I said valid combinations. In a nutshell it just untangles unrelated code and switches around a few defines. Please note that it creats a new file, arch/ia64/kernel/crash_dump.c This is in keeping with the i386 implementation. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/mm/contig.c')
-rw-r--r--arch/ia64/mm/contig.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 82deaa3a7c48..fd103886bb0a 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -174,6 +174,12 @@ find_memory (void)
reserve_bootmem(bootmap_start, bootmap_size);
find_initrd();
+
+#ifdef CONFIG_CRASH_DUMP
+ /* If we are doing a crash dump, we still need to know the real mem
+ * size before original memory map is * reset. */
+ saved_max_pfn = max_pfn;
+#endif
}
#ifdef CONFIG_SMP