The patch titled
Subject: mm-add-page_check_address_transhuge-helper-fix-fix
has been added to the -mm tree. Its filename is
mm-add-page_check_address_transhuge-helper-fix-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-add-page_check_address_transhuge-helper-fix-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-add-page_check_address_transhuge-helper-fix-fix.patch
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------------------------------------------------------
From: "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>
Subject: mm-add-page_check_address_transhuge-helper-fix-fix
mm/built-in.o: In function `page_referenced_one':
rmap.c:(.text+0x32070): undefined reference to `pmdp_clear_flush_young'
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@xxxxxxxxx>
Cc: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_idle.c | 6 +++++-
mm/rmap.c | 5 ++++-
2 files changed, 9 insertions(+), 2 deletions(-)
diff -puN mm/page_idle.c~mm-add-page_check_address_transhuge-helper-fix-fix mm/page_idle.c
--- a/mm/page_idle.c~mm-add-page_check_address_transhuge-helper-fix-fix
+++ a/mm/page_idle.c
@@ -66,8 +66,12 @@ static int page_idle_clear_pte_refs_one(
if (pte) {
referenced = ptep_clear_young_notify(vma, addr, pte);
pte_unmap(pte);
- } else
+ } else if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) {
referenced = pmdp_clear_young_notify(vma, addr, pmd);
+ } else {
+ /* unexpected pmd-mapped page? */
+ WARN_ON_ONCE(1);
+ }
spin_unlock(ptl);
diff -puN mm/rmap.c~mm-add-page_check_address_transhuge-helper-fix-fix mm/rmap.c
--- a/mm/rmap.c~mm-add-page_check_address_transhuge-helper-fix-fix
+++ a/mm/rmap.c
@@ -931,9 +931,12 @@ static int page_referenced_one(struct pa
referenced++;
}
pte_unmap(pte);
- } else {
+ } else if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) {
if (pmdp_clear_flush_young_notify(vma, address, pmd))
referenced++;
+ } else {
+ /* unexpected pmd-mapped page? */
+ WARN_ON_ONCE(1);
}
spin_unlock(ptl);
_
Patches currently in -mm which might be from kirill@xxxxxxxxxxxxx are
futex-thp-remove-special-case-for-thp-in-get_futex_key-fix.patch
mm-thp-remove-infrastructure-for-handling-splitting-pmds-fix.patch
mm-rework-mapcount-accounting-to-enable-4k-mapping-of-thps-fix-4.patch
thp-reintroduce-split_huge_page-fix-2.patch
mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting-fix.patch
mm-add-page_check_address_transhuge-helper-fix-fix.patch
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