The patch titled
Subject: mm/memblock: WARN_ON when nid differs from overlap region
has been added to the -mm tree. Its filename is
mm-memblock-warn_on-when-nid-differs-from-overlap-region.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-memblock-warn_on-when-nid-differs-from-overlap-region.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-memblock-warn_on-when-nid-differs-from-overlap-region.patch
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------------------------------------------------------
From: Wei Yang <weiyang@xxxxxxxxxxxxxxxxxx>
Subject: mm/memblock: WARN_ON when nid differs from overlap region
Each memblock_region has nid to indicates the Node ID of this range. For
the overlap case, memblock_add_range() inserts the lower part and leave
the upper part as indicated in the overlapped region.
If the nid of the new range differs from the overlapped region, the
information recorded is not correct.
This patch adds a WARN_ON when the nid of the new range differs from the
overlapped region.
Signed-off-by: Wei Yang <weiyang@xxxxxxxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memblock.c | 3 +++
1 file changed, 3 insertions(+)
diff -puN mm/memblock.c~mm-memblock-warn_on-when-nid-differs-from-overlap-region mm/memblock.c
--- a/mm/memblock.c~mm-memblock-warn_on-when-nid-differs-from-overlap-region
+++ a/mm/memblock.c
@@ -566,6 +566,9 @@ repeat:
* area, insert that portion.
*/
if (rbase > base) {
+#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
+ WARN_ON(nid != memblock_get_region_node(rgn));
+#endif
nr_new++;
if (insert)
memblock_insert_region(type, i++, base,
_
Patches currently in -mm which might be from weiyang@xxxxxxxxxxxxxxxxxx are
mm-memblock-warn_on-when-nid-differs-from-overlap-region.patch
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