[merged] mm-sparsec-wrong-allocation-for-mem_section.patch removed from -mm tree

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The patch titled
     Subject: mm/sparse.c: wrong allocation for mem_section
has been removed from the -mm tree.  Its filename was
     mm-sparsec-wrong-allocation-for-mem_section.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Baoquan He <bhe@xxxxxxxxxx>
Subject: mm/sparse.c: wrong allocation for mem_section

In 83e3c48729 ("mm/sparsemem: Allocate mem_section at runtime for CONFIG_SPARSEMEM_EXTREME=y") mem_section is allocated at runtime to save memory. While it allocates
the first dimension of array with sizeof(struct mem_section). It costs
extra memory, should be sizeof(struct mem_section*).

Fix it.

Link: http://lkml.kernel.org/r/1513932498-20350-1-git-send-email-bhe@xxxxxxxxxx
Fixes: 83e3c48729 ("mm/sparsemem: Allocate mem_section at runtime for CONFIG_SPARSEMEM_EXTREME=y")
Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
Tested-by: Dave Young <dyoung@xxxxxxxxxx>
Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Atsushi Kumagai <ats-kumagai@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/sparse.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN mm/sparse.c~mm-sparsec-wrong-allocation-for-mem_section mm/sparse.c
--- a/mm/sparse.c~mm-sparsec-wrong-allocation-for-mem_section
+++ a/mm/sparse.c
@@ -211,7 +211,7 @@ void __init memory_present(int nid, unsi
 	if (unlikely(!mem_section)) {
 		unsigned long size, align;
 
-		size = sizeof(struct mem_section) * NR_SECTION_ROOTS;
+		size = sizeof(struct mem_section*) * NR_SECTION_ROOTS;
 		align = 1 << (INTERNODE_CACHE_SHIFT);
 		mem_section = memblock_virt_alloc(size, align);
 	}
_

Patches currently in -mm which might be from bhe@xxxxxxxxxx are





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