diff options
| -rw-r--r-- | mm/memory-failure.c | 36 |
1 files changed, 17 insertions, 19 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index bf3351b5115..f9d78ec7831 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1423,19 +1423,6 @@ static int __get_any_page(struct page *p, unsigned long pfn, int flags) return 1; /* - * The lock_memory_hotplug prevents a race with memory hotplug. - * This is a big hammer, a better would be nicer. - */ - lock_memory_hotplug(); - - /* - * 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(p) != MIGRATE_ISOLATE) - set_migratetype_isolate(p, true); - /* * When the target page is a free hugepage, just remove it * from free hugepage list. */ @@ -1455,7 +1442,6 @@ static int __get_any_page(struct page *p, unsigned long pfn, int flags) /* Not a free page */ ret = 1; } - unlock_memory_hotplug(); return ret; } @@ -1654,15 +1640,28 @@ int soft_offline_page(struct page *page, int flags) } } + /* + * The lock_memory_hotplug prevents a race with memory hotplug. + * This is a big hammer, a better would be nicer. + */ + lock_memory_hotplug(); + + /* + * 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); - if (ret < 0) - goto unset; - if (ret) { /* for in-use pages */ + unlock_memory_hotplug(); + if (ret > 0) { /* for in-use pages */ if (PageHuge(page)) ret = soft_offline_huge_page(page, flags); else ret = __soft_offline_page(page, flags); - } else { /* for free pages */ + } else if (ret == 0) { /* for free pages */ if (PageHuge(page)) { set_page_hwpoison_huge_page(hpage); dequeue_hwpoisoned_huge_page(hpage); @@ -1673,7 +1672,6 @@ int soft_offline_page(struct page *page, int flags) atomic_long_inc(&num_poisoned_pages); } } -unset: unset_migratetype_isolate(page, MIGRATE_MOVABLE); return ret; } |