The patch titled
thp: don't alloc harder for gfp nomemalloc even if nowait
has been removed from the -mm tree. Its filename was
thp-dont-alloc-harder-for-gfp-nomemalloc-even-if-nowait.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: thp: don't alloc harder for gfp nomemalloc even if nowait
From: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Not worth throwing away the precious reserved free memory pool for
allocations that can fail gracefully (either through mempool or because
they're transhuge allocations later falling back to 4k allocations).
Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Acked-by: Rik van Riel <riel@xxxxxxxxxx>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Acked-by: Mel Gorman <mel@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff -puN mm/page_alloc.c~thp-dont-alloc-harder-for-gfp-nomemalloc-even-if-nowait mm/page_alloc.c
--- a/mm/page_alloc.c~thp-dont-alloc-harder-for-gfp-nomemalloc-even-if-nowait
+++ a/mm/page_alloc.c
@@ -1971,7 +1971,12 @@ gfp_to_alloc_flags(gfp_t gfp_mask)
alloc_flags |= (__force int) (gfp_mask & __GFP_HIGH);
if (!wait) {
- alloc_flags |= ALLOC_HARDER;
+ /*
+ * Not worth trying to allocate harder for
+ * __GFP_NOMEMALLOC even if it can't schedule.
+ */
+ if (!(gfp_mask & __GFP_NOMEMALLOC))
+ alloc_flags |= ALLOC_HARDER;
/*
* Ignore cpuset if GFP_ATOMIC (!wait) rather than fail alloc.
* See also cpuset_zone_allowed() comment in kernel/cpuset.c.
_
Patches currently in -mm which might be from aarcange@xxxxxxxxxx are
origin.patch
thp-add-pagetranscompound.patch
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