The patch titled
Subject: mm/slab.c: only set __GFP_RECLAIMABLE once
has been added to the -mm tree. Its filename is
mm-slab-only-set-__gfp_reclaimable-once.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-slab-only-set-__gfp_reclaimable-once.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-slab-only-set-__gfp_reclaimable-once.patch
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The -mm tree is included into linux-next and is updated
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------------------------------------------------------
From: David Rientjes <rientjes@xxxxxxxxxx>
Subject: mm/slab.c: only set __GFP_RECLAIMABLE once
SLAB_RECLAIM_ACCOUNT is a permanent attribute of a slab cache. Set
__GFP_RECLAIMABLE as part of its ->allocflags rather than check the cachep
flag on every page allocation.
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1710171527560.140898@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Acked-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slab.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/slab.c~mm-slab-only-set-__gfp_reclaimable-once mm/slab.c
--- a/mm/slab.c~mm-slab-only-set-__gfp_reclaimable-once
+++ a/mm/slab.c
@@ -1409,8 +1409,6 @@ static struct page *kmem_getpages(struct
int nr_pages;
flags |= cachep->allocflags;
- if (cachep->flags & SLAB_RECLAIM_ACCOUNT)
- flags |= __GFP_RECLAIMABLE;
page = __alloc_pages_node(nodeid, flags | __GFP_NOTRACK, cachep->gfporder);
if (!page) {
@@ -2143,6 +2141,8 @@ done:
cachep->allocflags = __GFP_COMP;
if (flags & SLAB_CACHE_DMA)
cachep->allocflags |= GFP_DMA;
+ if (flags & SLAB_RECLAIM_ACCOUNT)
+ cachep->allocflags |= __GFP_RECLAIMABLE;
cachep->size = size;
cachep->reciprocal_buffer_size = reciprocal_value(size);
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
mm-slab-only-set-__gfp_reclaimable-once.patch
mm-compaction-kcompactd-should-not-ignore-pageblock-skip.patch
mm-compaction-persistently-skip-hugetlbfs-pageblocks.patch
mm-compaction-persistently-skip-hugetlbfs-pageblocks-fix.patch
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