The patch titled
Subject: mm/sparse: more checks on mem_section number
has been removed from the -mm tree. Its filename was
mm-sparse-more-check-on-mem_section-number.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Gavin Shan <shangw@xxxxxxxxxxxxxxxxxx>
Subject: mm/sparse: more checks on mem_section number
__section_nr() was implemented to retrieve the corresponding memory
section number according to its descriptor. It's possible that the
specified memory section descriptor doesn't exist in the global array. So
add more checking on that and report an error for a wrong case.
Signed-off-by: Gavin Shan <shangw@xxxxxxxxxxxxxxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/sparse.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN mm/sparse.c~mm-sparse-more-check-on-mem_section-number mm/sparse.c
--- a/mm/sparse.c~mm-sparse-more-check-on-mem_section-number
+++ a/mm/sparse.c
@@ -130,6 +130,8 @@ int __section_nr(struct mem_section* ms)
break;
}
+ VM_BUG_ON(root_nr == NR_SECTION_ROOTS);
+
return (root_nr * SECTIONS_PER_ROOT) + (ms - root);
}
_
Patches currently in -mm which might be from shangw@xxxxxxxxxxxxxxxxxx are
origin.patch
mm-slab-remove-duplicate-check.patch
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