memblock, numa: binary search node id

[~andy/linux] / mm / memory-failure.c

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 55d7c8026ab078215afff2fe3b088143bcd43f2d..e05ed31c0f61b9bf14a4cc8ce2baa747025fc4ba 100644 (file)
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1265,7 +1265,7 @@ void memory_failure_queue(unsigned long pfn, int trapno, int flags)
        if (kfifo_put(&mf_cpu->fifo, &entry))
                schedule_work_on(smp_processor_id(), &mf_cpu->work);
        else
-               pr_err("Memory failure: buffer overflow when queuing memory failure at 0x%#lx\n",
+               pr_err("Memory failure: buffer overflow when queuing memory failure at %#lx\n",
                       pfn);
        spin_unlock_irqrestore(&mf_cpu->lock, proc_flags);
        put_cpu_var(memory_failure_cpu);
@@ -1470,6 +1470,7 @@ static int soft_offline_huge_page(struct page *page, int flags)
        int ret;
        unsigned long pfn = page_to_pfn(page);
        struct page *hpage = compound_head(page);
+       LIST_HEAD(pagelist);
 
        /*
         * This double-check of PageHWPoison is to avoid the race with
@@ -1485,12 +1486,20 @@ 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,
-                               MIGRATE_SYNC);
-       put_page(hpage);
+       list_move(&hpage->lru, &pagelist);
+       ret = migrate_pages(&pagelist, new_page, MPOL_MF_MOVE_ALL,
+                               MIGRATE_SYNC, MR_MEMORY_FAILURE);
        if (ret) {
                pr_info("soft offline: %#lx: migration failed %d, type %lx\n",
                        pfn, ret, page->flags);
+               /*
+                * We know that soft_offline_huge_page() tries to migrate
+                * only one hugepage pointed to by hpage, so we need not
+                * run through the pagelist here.
+                */
+               putback_active_hugepage(hpage);
+               if (ret > 0)
+                       ret = -EIO;
        } else {
                set_page_hwpoison_huge_page(hpage);
                dequeue_hwpoisoned_huge_page(hpage);