While reserving KVA for lmem_maps of node, we have to make sure that
node_remap_start_pfn[] is aligned to a proper pmd boundary.
(node_remap_start_pfn[] gets its value from node_end_pfn[])
Signed-off-by: Ravikiran Thirumalai <[email protected]>
Signed-off-by: Shai Fultheim <[email protected]>
Index: linux-2.6.13-rc3/arch/i386/mm/discontig.c
===================================================================
--- linux-2.6.13-rc3.orig/arch/i386/mm/discontig.c 2005-07-26 15:10:25.000000000 -0700
+++ linux-2.6.13-rc3/arch/i386/mm/discontig.c 2005-07-26 16:27:43.000000000 -0700
@@ -243,6 +243,14 @@
/* now the roundup is correct, convert to PAGE_SIZE pages */
size = size * PTRS_PER_PTE;
+ if (node_end_pfn[nid] & (PTRS_PER_PTE-1)) {
+ /*
+ * Adjust size if node_end_pfn is not on a proper
+ * pmd boundary. remap_numa_kva will barf otherwise.
+ */
+ size += node_end_pfn[nid] & (PTRS_PER_PTE-1);
+ }
+
/*
* Validate the region we are allocating only contains valid
* pages.
-
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