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[PATCH] mm: hugetlb alloc_fresh_huge_page bogus node loop fix 

Fix bogus node loop in hugetlb.c alloc_fresh_huge_page(), which was
assuming that nodes are numbered contiguously from 0 to num_online_nodes().
Once the hotplug folks get this far, that will be false.

Signed-off-by: Paul Jackson <pj@sgi.com>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paul Jackson 2006-03-22 00:09:10 -08:00 committed by Linus Torvalds
parent 9b65ef59d4
commit fdb7cc5908
1 changed files with 3 additions and 1 deletions
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4
mm/hugetlb.c
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@ -105,7 +105,9 @@ static int alloc_fresh_huge_page(void)
struct page *page;
page = alloc_pages_node(nid, GFP_HIGHUSER|__GFP_COMP|__GFP_NOWARN,
HUGETLB_PAGE_ORDER);
nid = (nid + 1) % num_online_nodes();
nid = next_node(nid, node_online_map);
if (nid == MAX_NUMNODES)
nid = first_node(node_online_map);
if (page) {
page[1].lru.next = (void *)free_huge_page; /* dtor */
spin_lock(&hugetlb_lock);