tree c0d7b9f7654bb83da63a28b2609b03c442ca09f8
parent 590f47a1d945c611530a85057e9ad7a3bbb50578
author Ravikiran G Thirumalai <[EMAIL PROTECTED]> Sat, 30 Jul 2005 04:03:28
-0700
committer Linus Torvalds <[EMAIL PROTECTED]> Sat, 30 Jul 2005 05:01:13 -0700
[PATCH] mm: Ensure proper alignment for node_remap_start_pfn
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]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
arch/i386/mm/discontig.c | 8 ++++++++
1 files changed, 8 insertions(+)
diff --git a/arch/i386/mm/discontig.c b/arch/i386/mm/discontig.c
--- a/arch/i386/mm/discontig.c
+++ b/arch/i386/mm/discontig.c
@@ -243,6 +243,14 @@ static unsigned long calculate_numa_rema
/* 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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