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authorChristoph Lameter <clameter@engr.sgi.com>2006-01-06 00:11:17 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-06 08:33:28 -0800
commit4be38e351c5f455f6f490f5aff29053e33ab4f99 (patch)
treefd7ba3678cdb5750894f58034f47076dd38c64ae /include/linux/mempolicy.h
parent1a93205bdffd9d7278d4a66081cdb48452522a58 (diff)
[PATCH] mm: move determination of policy_zone into page allocator
Currently the function to build a zonelist for a BIND policy has the side effect to set the policy_zone. This seems to be a bit strange. policy zone seems to not be initialized elsewhere and therefore 0. Do we police ZONE_DMA if no bind policy has been used yet? This patch moves the determination of the zone to apply policies to into the page allocator. We determine the zone while building the zonelist for nodes. 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 'include/linux/mempolicy.h')
-rw-r--r--include/linux/mempolicy.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index b972f985a3c..ed00b278cb9 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -151,6 +151,14 @@ extern struct mempolicy default_policy;
extern struct zonelist *huge_zonelist(struct vm_area_struct *vma,
unsigned long addr);
+extern int policy_zone;
+
+static inline void check_highest_zone(int k)
+{
+ if (k > policy_zone)
+ policy_zone = k;
+}
+
#else
struct mempolicy {};
@@ -221,6 +229,9 @@ static inline struct zonelist *huge_zonelist(struct vm_area_struct *vma,
return NODE_DATA(0)->node_zonelists + gfp_zone(GFP_HIGHUSER);
}
+static inline void check_highest_zone(int k)
+{
+}
#endif /* CONFIG_NUMA */
#endif /* __KERNEL__ */