mm: remove offlining arg to migrate_pages

No functional change, but the only purpose of the offlining argument to
migrate_pages() etc, was to ensure that __unmap_and_move() could migrate a
KSM page for memory hotremove (which took ksm_thread_mutex) but not for
other callers.  Now all cases are safe, remove the arg.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Petr Holasek <pholasek@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Izik Eidus <izik.eidus@ravellosystems.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 1a56d63adf9c..e4683459ab26 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1465,7 +1465,7 @@ static int soft_offline_huge_page(struct page *page, int flags)
         unlock_page(hpage);
 
         /* Keep page count to indicate a given hugepage is isolated. */
-        ret = migrate_huge_page(hpage, new_page, MPOL_MF_MOVE_ALL, false,
+        ret = migrate_huge_page(hpage, new_page, MPOL_MF_MOVE_ALL,
                                 MIGRATE_SYNC);
         put_page(hpage);
         if (ret) {
@@ -1597,11 +1597,10 @@ static int __soft_offline_page(struct page *page, int flags)
         if (!ret) {
                 LIST_HEAD(pagelist);
                 inc_zone_page_state(page, NR_ISOLATED_ANON +
-                                            page_is_file_cache(page));
+                                        page_is_file_cache(page));
                 list_add(&page->lru, &pagelist);
                 ret = migrate_pages(&pagelist, new_page, MPOL_MF_MOVE_ALL,
-                                                        false, MIGRATE_SYNC,
-                                                        MR_MEMORY_FAILURE);
+                                        MIGRATE_SYNC, MR_MEMORY_FAILURE);
                 if (ret) {
                         putback_lru_pages(&pagelist);
                         pr_info("soft offline: %#lx: migration failed %d, type %lx\n",