Subject: + slab-document-kmalloc_order.patch added to -mm tree
To: vdavydov@xxxxxxxxxxxxx,cl@xxxxxxxxx,penberg@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Thu, 17 Apr 2014 14:21:54 -0700
The patch titled
Subject: slab: document kmalloc_order
has been added to the -mm tree. Its filename is
slab-document-kmalloc_order.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/slab-document-kmalloc_order.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/slab-document-kmalloc_order.patch
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------------------------------------------------------
From: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
Subject: slab: document kmalloc_order
Signed-off-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slab_common.c | 5 +++++
1 file changed, 5 insertions(+)
diff -puN mm/slab_common.c~slab-document-kmalloc_order mm/slab_common.c
--- a/mm/slab_common.c~slab-document-kmalloc_order
+++ a/mm/slab_common.c
@@ -573,6 +573,11 @@ void __init create_kmalloc_caches(unsign
}
#endif /* !CONFIG_SLOB */
+/*
+ * To avoid unnecessary overhead, we pass through large allocation requests
+ * directly to the page allocator. We use __GFP_COMP, because we will need to
+ * know the allocation order to free the pages properly in kfree.
+ */
void *kmalloc_order(size_t size, gfp_t flags, unsigned int order)
{
void *ret;
_
Patches currently in -mm which might be from vdavydov@xxxxxxxxxxxxx are
slb-charge-slabs-to-kmemcg-explicitly.patch
mm-get-rid-of-__gfp_kmemcg.patch
mm-get-rid-of-__gfp_kmemcg-fix.patch
slab-document-kmalloc_order.patch
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