Merge tag 'iommu-fixes-v5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...

[sfrench/cifs-2.6.git] / mm / migrate.c

diff --git a/mm/migrate.c b/mm/migrate.c
index ccf8966caf6fe1b36bfa7c02ea8cac91999f8f34..a16b15090df3b5f62e8421b16d642db113075eeb 100644 (file)
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1324,19 +1324,8 @@ static int unmap_and_move_huge_page(new_page_t get_new_page,
                goto put_anon;
 
        if (page_mapped(hpage)) {
-               struct address_space *mapping = page_mapping(hpage);
-
-               /*
-                * try_to_unmap could potentially call huge_pmd_unshare.
-                * Because of this, take semaphore in write mode here and
-                * set TTU_RMAP_LOCKED to let lower levels know we have
-                * taken the lock.
-                */
-               i_mmap_lock_write(mapping);
                try_to_unmap(hpage,
-                       TTU_MIGRATION|TTU_IGNORE_MLOCK|TTU_IGNORE_ACCESS|
-                       TTU_RMAP_LOCKED);
-               i_mmap_unlock_write(mapping);
+                       TTU_MIGRATION|TTU_IGNORE_MLOCK|TTU_IGNORE_ACCESS);
                page_was_mapped = 1;
        }