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Diffstat (limited to 'mm')
-rw-r--r--mm/memory-failure.c22
-rw-r--r--mm/migrate.c9
2 files changed, 6 insertions, 25 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index e26bc59d7dff..7207c16f39c9 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1695,20 +1695,7 @@ static int __soft_offline_page(struct page *page, int flags)
if (ret > 0)
ret = -EIO;
} else {
- /*
- * After page migration succeeds, the source page can
- * be trapped in pagevec and actual freeing is delayed.
- * Freeing code works differently based on PG_hwpoison,
- * so there's a race. We need to make sure that the
- * source page should be freed back to buddy before
- * setting PG_hwpoison.
- */
- if (!is_free_buddy_page(page))
- drain_all_pages(page_zone(page));
SetPageHWPoison(page);
- if (!is_free_buddy_page(page))
- pr_info("soft offline: %#lx: page leaked\n",
- pfn);
atomic_long_inc(&num_poisoned_pages);
}
} else {
@@ -1760,14 +1747,6 @@ int soft_offline_page(struct page *page, int flags)
get_online_mems();
- /*
- * Isolate the page, so that it doesn't get reallocated if it
- * was free. This flag should be kept set until the source page
- * is freed and PG_hwpoison on it is set.
- */
- if (get_pageblock_migratetype(page) != MIGRATE_ISOLATE)
- set_migratetype_isolate(page, true);
-
ret = get_any_page(page, pfn, flags);
put_online_mems();
if (ret > 0) { /* for in-use pages */
@@ -1786,6 +1765,5 @@ int soft_offline_page(struct page *page, int flags)
atomic_long_inc(&num_poisoned_pages);
}
}
- unset_migratetype_isolate(page, MIGRATE_MOVABLE);
return ret;
}
diff --git a/mm/migrate.c b/mm/migrate.c
index 8c4841a6dc4c..1d425611b180 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -918,7 +918,8 @@ out:
static ICE_noinline int unmap_and_move(new_page_t get_new_page,
free_page_t put_new_page,
unsigned long private, struct page *page,
- int force, enum migrate_mode mode)
+ int force, enum migrate_mode mode,
+ enum migrate_reason reason)
{
int rc = 0;
int *result = NULL;
@@ -949,7 +950,8 @@ out:
list_del(&page->lru);
dec_zone_page_state(page, NR_ISOLATED_ANON +
page_is_file_cache(page));
- putback_lru_page(page);
+ if (reason != MR_MEMORY_FAILURE)
+ putback_lru_page(page);
}
/*
@@ -1122,7 +1124,8 @@ int migrate_pages(struct list_head *from, new_page_t get_new_page,
pass > 2, mode);
else
rc = unmap_and_move(get_new_page, put_new_page,
- private, page, pass > 2, mode);
+ private, page, pass > 2, mode,
+ reason);
switch(rc) {
case -ENOMEM: