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Date: Mon, 9 May 2016 17:04:53 -0700 From: Kamal Mostafa <kamal@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Minchan Kim <minchan@...nel.org>, Johannes Weiner <hannes@...xchg.org>, Andrew Morton <akpm@...ux-foundation.org>, Linus Torvalds <torvalds@...ux-foundation.org>, Kamal Mostafa <kamal@...onical.com> Subject: [PATCH 3.19.y-ckt 34/54] mm: vmscan: reclaim highmem zone if buffer_heads is over limit 3.19.8-ckt21 -stable review patch. If anyone has any objections, please let me know. ---8<------------------------------------------------------------ From: Minchan Kim <minchan@...nel.org> commit 7bf52fb891b64b8d61caf0b82060adb9db761aec upstream. We have been reclaimed highmem zone if buffer_heads is over limit but commit 6b4f7799c6a5 ("mm: vmscan: invoke slab shrinkers from shrink_zone()") changed the behavior so it doesn't reclaim highmem zone although buffer_heads is over the limit. This patch restores the logic. Fixes: 6b4f7799c6a5 ("mm: vmscan: invoke slab shrinkers from shrink_zone()") Signed-off-by: Minchan Kim <minchan@...nel.org> Cc: Johannes Weiner <hannes@...xchg.org> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org> Signed-off-by: Kamal Mostafa <kamal@...onical.com> --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 838b49a..8c88134 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2417,7 +2417,7 @@ static bool shrink_zones(struct zonelist *zonelist, struct scan_control *sc) sc->gfp_mask |= __GFP_HIGHMEM; for_each_zone_zonelist_nodemask(zone, z, zonelist, - requested_highidx, sc->nodemask) { + gfp_zone(sc->gfp_mask), sc->nodemask) { enum zone_type classzone_idx; if (!populated_zone(zone)) -- 2.7.4
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