The patch titled
__unmap_hugepage_range(): add comment
has been added to the -mm tree. Its filename is
__unmap_hugepage_range-add-comment.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: __unmap_hugepage_range(): add comment
From: "Chen, Kenneth W" <kenneth.w.chen@xxxxxxxxx>
Signed-off-by: Ken Chen <kenneth.w.chen@xxxxxxxxx>
Cc: David Gibson <david@xxxxxxxxxxxxxxxxxxxxx>
Cc: Hugh Dickins <hugh@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
mm/hugetlb.c | 5 +++++
1 files changed, 5 insertions(+)
diff -puN mm/hugetlb.c~__unmap_hugepage_range-add-comment mm/hugetlb.c
--- a/mm/hugetlb.c~__unmap_hugepage_range-add-comment
+++ a/mm/hugetlb.c
@@ -365,6 +365,11 @@ void __unmap_hugepage_range(struct vm_ar
pte_t pte;
struct page *page;
struct page *tmp;
+ /*
+ * A page gathering list, protected by per file i_mmap_lock. The
+ * lock is used to avoid list corruption from multiple unmapping
+ * of the same page since we are using page->lru.
+ */
LIST_HEAD(page_list);
WARN_ON(!is_vm_hugetlb_page(vma));
_
Patches currently in -mm which might be from kenneth.w.chen@xxxxxxxxx are
hugetlb-fix-linked-list-corruption-in-unmap_hugepage_range.patch
__unmap_hugepage_range-add-comment.patch
-
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