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| author | Ravikiran G Thirumalai <kiran@scalex86.org> | 2005-07-30 01:03:28 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-30 02:01:13 +0400 |
| commit | 94d2ac66c12397e2ca7988dbf59f24a966d275cb (patch) | |
| tree | c0d7b9f7654bb83da63a28b2609b03c442ca09f8 | |
| parent | 590f47a1d945c611530a85057e9ad7a3bbb50578 (diff) | |
| download | linux-94d2ac66c12397e2ca7988dbf59f24a966d275cb.tar.xz | |
[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 <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/i386/mm/discontig.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/i386/mm/discontig.c b/arch/i386/mm/discontig.c index b358f0702a44..c369a8bf7cbe 100644 --- a/arch/i386/mm/discontig.c +++ b/arch/i386/mm/discontig.c @@ -243,6 +243,14 @@ static unsigned long calculate_numa_remap_pages(void) /* 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. |