From: Joonsoo Kim <iamjoonsoo....@lge.com>

There is a well-defined standard migration target callback. Use it
directly.

Signed-off-by: Joonsoo Kim <iamjoonsoo....@lge.com>
---
 mm/memory-failure.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 609d42b6..3b89804 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1677,16 +1677,6 @@ int unpoison_memory(unsigned long pfn)
 }
 EXPORT_SYMBOL(unpoison_memory);
 
-static struct page *new_page(struct page *p, unsigned long private)
-{
-       struct migration_target_control mtc = {
-               .nid = page_to_nid(p),
-               .gfp_mask = GFP_USER | __GFP_MOVABLE | __GFP_RETRY_MAYFAIL,
-       };
-
-       return alloc_migration_target(p, (unsigned long)&mtc);
-}
-
 /*
  * Safely get reference count of an arbitrary page.
  * Returns 0 for a free page, -EIO for a zero refcount page
@@ -1793,6 +1783,10 @@ static int __soft_offline_page(struct page *page)
        const char *msg_page[] = {"page", "hugepage"};
        bool huge = PageHuge(page);
        LIST_HEAD(pagelist);
+       struct migration_target_control mtc = {
+               .nid = NUMA_NO_NODE,
+               .gfp_mask = GFP_USER | __GFP_MOVABLE | __GFP_RETRY_MAYFAIL,
+       };
 
        /*
         * Check PageHWPoison again inside page lock because PageHWPoison
@@ -1829,8 +1823,8 @@ static int __soft_offline_page(struct page *page)
        }
 
        if (isolate_page(hpage, &pagelist)) {
-               ret = migrate_pages(&pagelist, new_page, NULL, MPOL_MF_MOVE_ALL,
-                                       MIGRATE_SYNC, MR_MEMORY_FAILURE);
+               ret = migrate_pages(&pagelist, alloc_migration_target, NULL,
+                       (unsigned long)&mtc, MIGRATE_SYNC, MR_MEMORY_FAILURE);
                if (!ret) {
                        bool release = !huge;
 
-- 
2.7.4

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