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mm, numa: avoid setting zone_reclaim_mode unless a node is sufficiently distant

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Commit 957f822a0a ("mm, numa: reclaim from all nodes within reclaim
distance") caused zone_reclaim_mode to be set for all systems where two
nodes are within RECLAIM_DISTANCE of each other.  This is the opposite
of what we actually want: zone_reclaim_mode should be set if two nodes
are sufficiently distant.

Signed-off-by: David Rientjes <rientjes@google.com>
Reported-by: Julian Wollrath <jwollrath@web.de>
Tested-by: Julian Wollrath <jwollrath@web.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Patrik Kullman <patrik.kullman@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Rientjes 2012-10-25 13:38:08 -07:00 committed by Linus Torvalds
parent f230250577
commit 6b187d0260
1 changed files with 2 additions and 2 deletions
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4
mm/page_alloc.c
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@ -1809,10 +1809,10 @@ static void __paginginit init_zone_allows_reclaim(int nid)
int i;
for_each_online_node(i)
if (node_distance(nid, i) <= RECLAIM_DISTANCE) {
if (node_distance(nid, i) <= RECLAIM_DISTANCE)
node_set(i, NODE_DATA(nid)->reclaim_nodes);
else
zone_reclaim_mode = 1;
}
}
#else /* CONFIG_NUMA */