vmscan: zone_reclaim don't call disable_swap_token()

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.

Signed-off-by: KOSAKI Motohiro <[email protected]>
Acked-by: Rik van Riel <[email protected]>
Reviewed-by: Minchan Kim <[email protected]>
Cc: Christoph Lameter <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/mm/vmscan.c b/mm/vmscan.c
index b94fe1b3da435f34f567e8a23358ec18ccd452ad..5b594d62ca01a3c3fcef70af010daa44bbb63f6c 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2592,7 +2592,6 @@ 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