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| author | Christoph Lameter <clameter@engr.sgi.com> | 2006-01-06 00:11:18 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 08:33:28 -0800 |
| commit | 02a68a5ebc7dd823da7496116f42290103e1e4a9 (patch) | |
| tree | 7b79d20246b5c9b769e4f6172fe97e6f91fb921b /mm/page_alloc.c | |
| parent | 4be38e351c5f455f6f490f5aff29053e33ab4f99 (diff) | |
| download | op-kernel-dev-02a68a5ebc7dd823da7496116f42290103e1e4a9.zip op-kernel-dev-02a68a5ebc7dd823da7496116f42290103e1e4a9.tar.gz | |
[PATCH] Fix zone policy determination
The use k in the inner loop means that the highest zone nr is always used
if any zone of a node is populated. This means that the policy zone is not
correctly determined on arches that do no use HIGHMEM like ia64.
Change the loop to decrement k which also simplifies the BUG_ON.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 512e3f4..ca97899 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1465,15 +1465,19 @@ static int __init build_zonelists_node(pg_data_t *pgdat, struct zone *zone; BUG_ON(k > ZONE_HIGHMEM); - for (zone = pgdat->node_zones + k; zone >= pgdat->node_zones; zone--) { + + do { + zone = pgdat->node_zones + k; if (populated_zone(zone)) { #ifndef CONFIG_HIGHMEM - BUG_ON(zone - pgdat->node_zones > ZONE_NORMAL); + BUG_ON(k > ZONE_NORMAL); #endif zonelist->zones[j++] = zone; check_highest_zone(k); } - } + k--; + + } while (k >= 0); return j; } |
