The patch titled
Subject: mm: hugetlb: cleanup duplicated code in unmapping vm range
has been removed from the -mm tree. Its filename was
mm-hugetlb-cleanup-duplicated-code-in-unmapping-vm-range.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Hillf Danton <dhillf@xxxxxxxxx>
Subject: mm: hugetlb: cleanup duplicated code in unmapping vm range
Fix code duplication in __unmap_hugepage_range(), such as pte_page() and
huge_pte_none().
Signed-off-by: Hillf Danton <dhillf@xxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 25 +++++++++++--------------
1 file changed, 11 insertions(+), 14 deletions(-)
diff -puN mm/hugetlb.c~mm-hugetlb-cleanup-duplicated-code-in-unmapping-vm-range mm/hugetlb.c
--- a/mm/hugetlb.c~mm-hugetlb-cleanup-duplicated-code-in-unmapping-vm-range
+++ a/mm/hugetlb.c
@@ -2331,16 +2331,23 @@ void __unmap_hugepage_range(struct vm_ar
if (huge_pmd_unshare(mm, &address, ptep))
continue;
+ pte = huge_ptep_get(ptep);
+ if (huge_pte_none(pte))
+ continue;
+
+ /*
+ * HWPoisoned hugepage is already unmapped and dropped reference
+ */
+ if (unlikely(is_hugetlb_entry_hwpoisoned(pte)))
+ continue;
+
+ page = pte_page(pte);
/*
* If a reference page is supplied, it is because a specific
* page is being unmapped, not a range. Ensure the page we
* are about to unmap is the actual page of interest.
*/
if (ref_page) {
- pte = huge_ptep_get(ptep);
- if (huge_pte_none(pte))
- continue;
- page = pte_page(pte);
if (page != ref_page)
continue;
@@ -2353,16 +2360,6 @@ void __unmap_hugepage_range(struct vm_ar
}
pte = huge_ptep_get_and_clear(mm, address, ptep);
- if (huge_pte_none(pte))
- continue;
-
- /*
- * HWPoisoned hugepage is already unmapped and dropped reference
- */
- if (unlikely(is_hugetlb_entry_hwpoisoned(pte)))
- continue;
-
- page = pte_page(pte);
if (pte_dirty(pte))
set_page_dirty(page);
list_add(&page->lru, &page_list);
_
Patches currently in -mm which might be from dhillf@xxxxxxxxx are
origin.patch
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