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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2016-03-17 14:20:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-17 15:09:34 -0700
commite388466de4a2a1a50c43bfaeacc0c8254d9e7cb2 (patch)
treedecd9831aa60379c8937fd54bade4fd171247ade /include/linux/rmap.h
parent2a52bcbcc688eecead2953143f7ef695b8e44575 (diff)
mm: make remove_migration_ptes() beyond mm/migration.c
Make remove_migration_ptes() available to be used in split_huge_page(). New parameter 'locked' added: as with try_to_umap() we need a way to indicate that caller holds rmap lock. We also shouldn't try to mlock() pte-mapped huge pages: pte-mapeed THP pages are never mlocked. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/rmap.h')
-rw-r--r--include/linux/rmap.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 3d975e2252d4..49eb4f8ebac9 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -243,6 +243,8 @@ int page_mkclean(struct page *);
*/
int try_to_munlock(struct page *);
+void remove_migration_ptes(struct page *old, struct page *new, bool locked);
+
/*
* Called by memory-failure.c to kill processes.
*/