The patch titled
page allocator: check only once if the zonelist is suitable for the allocation
has been removed from the -mm tree. Its filename was
page-allocator-check-only-once-if-the-zonelist-is-suitable-for-the-allocation.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: page allocator: check only once if the zonelist is suitable for the allocation
From: Mel Gorman <mel@xxxxxxxxx>
It is possible with __GFP_THISNODE that no zones are suitable. This patch
makes sure the check is only made once.
Signed-off-by: Mel Gorman <mel@xxxxxxxxx>
Reviewed-by: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Reviewed-by: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Nick Piggin <nickpiggin@xxxxxxxxxxxx>
Cc: Dave Hansen <dave@xxxxxxxxxxxxxxxxxx>
Cc: Lee Schermerhorn <Lee.Schermerhorn@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN mm/page_alloc.c~page-allocator-check-only-once-if-the-zonelist-is-suitable-for-the-allocation mm/page_alloc.c
--- a/mm/page_alloc.c~page-allocator-check-only-once-if-the-zonelist-is-suitable-for-the-allocation
+++ a/mm/page_alloc.c
@@ -1483,9 +1483,8 @@ __alloc_pages_nodemask(gfp_t gfp_mask, u
if (should_fail_alloc_page(gfp_mask, order))
return NULL;
-restart:
- z = zonelist->_zonerefs; /* the list of zones suitable for gfp_mask */
-
+ /* the list of zones suitable for gfp_mask */
+ z = zonelist->_zonerefs;
if (unlikely(!z->zone)) {
/*
* Happens if we have an empty zonelist as a result of
@@ -1494,6 +1493,7 @@ restart:
return NULL;
}
+restart:
page = get_page_from_freelist(gfp_mask|__GFP_HARDWALL, nodemask, order,
zonelist, high_zoneidx, ALLOC_WMARK_LOW|ALLOC_CPUSET);
if (page)
_
Patches currently in -mm which might be from mel@xxxxxxxxx are
origin.patch
linux-next.patch
page_alloc-oops-when-setting-percpu_pagelist_fraction.patch
memcg-fix-lru-rotation-in-isolate_pages.patch
add-debugging-aid-for-memory-initialisation-problems.patch
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