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Commit 6b187d02 authored by David Rientjes's avatar David Rientjes Committed by Linus Torvalds
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mm, numa: avoid setting zone_reclaim_mode unless a node is sufficiently distant 



Commit 957f822a ("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: default avatarDavid Rientjes <rientjes@google.com>
Reported-by: default avatarJulian Wollrath <jwollrath@web.de>
Tested-by: default avatarJulian Wollrath <jwollrath@web.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Patrik Kullman <patrik.kullman@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f2302505

mm/page_alloc.c

+2 −2
Original line number Diff line number Diff line
@@ -1809,11 +1809,11 @@ 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 */