The patch titled
Subject: rmap-fix-theoretical-race-between-do_wp_page-and-shrink_active_list-fix
has been removed from the -mm tree. Its filename was
rmap-fix-theoretical-race-between-do_wp_page-and-shrink_active_list-fix.patch
This patch was dropped because it was folded into rmap-fix-theoretical-race-between-do_wp_page-and-shrink_active_list.patch
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: rmap-fix-theoretical-race-between-do_wp_page-and-shrink_active_list-fix
Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/rmap.c | 5 +++++
1 file changed, 5 insertions(+)
diff -puN mm/rmap.c~rmap-fix-theoretical-race-between-do_wp_page-and-shrink_active_list-fix mm/rmap.c
--- a/mm/rmap.c~rmap-fix-theoretical-race-between-do_wp_page-and-shrink_active_list-fix
+++ a/mm/rmap.c
@@ -950,6 +950,11 @@ void page_move_anon_rmap(struct page *pa
VM_BUG_ON_PAGE(page->index != linear_page_index(vma, address), page);
anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON;
+ /*
+ * Ensure that anon_vma and the PAGE_MAPPING_ANON bit are written
+ * simultaneously, so a concurrent reader (eg shrink_active_list) will
+ * not see one without the other.
+ */
WRITE_ONCE(page->mapping, (struct address_space *) anon_vma);
}
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
ocfs2-reduce-object-size-of-mlog-uses.patch
ocfs2-remove-__mlog_cpu_guess.patch
ocfs2-fix-null-pointer-dereference-in-function-ocfs2_abort_trigger.patch
mm-slab_common-support-the-slub_debug-boot-option-on-specific-object-size.patch
mm-fix-mprotect-behaviour-on-vm_locked-vmas.patch
mm-new-mm-hook-framework.patch
mm-memory-failure-introduce-get_hwpoison_page-for-consistent-refcount-handling.patch
rmap-fix-theoretical-race-between-do_wp_page-and-shrink_active_list.patch
rmap-fix-theoretical-race-between-do_wp_page-and-shrink_active_list-fix-fix.patch
hugetlb-do-not-account-hugetlb-pages-as-nr_file_pages-fix.patch
mm-do-not-ignore-mapping_gfp_mask-in-page-cache-allocation-paths-checkpatch-fixes.patch
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