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From: KOSAKI Motohiro on 25 Jun 2010 04:40
Swap token don't works when zone reclaim is enabled since it was born.
Because __zone_reclaim() always call disable_swap_token()
unconditionally.

This kill swap token feature completely. As far as I know, nobody want
to that. Remove it.

Cc: Rik van Riel <riel(a)redhat.com>
Cc: Christoph Lameter <cl(a)linux-foundation.org>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com>
---
mm/vmscan.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 9c7e57c..0c961f1 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2590,7 +2590,6 @@ static int __zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)
};
unsigned long slab_reclaimable;

- disable_swap_token();
cond_resched();
/*
* We need to be able to allocate from the reserves for RECLAIM_SWAP
--
1.6.5.2



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