mm/memory-failure: remove a wrapper for alloc_migration_target()

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

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Roman Gushchin <guro@fb.com>
Link: http://lkml.kernel.org/r/1594622517-20681-9-git-send-email-iamjoonsoo.kim@lge.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index a2184b7..c0bb186 100644 (file)
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1673,16 +1673,6 @@ 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
@@ -1797,6 +1787,10 @@ static int __soft_offline_page(struct page *page)
        char const *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
@@ -1833,8 +1827,8 @@ 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;