soft_offline_page will invoke __soft_offline_page for in-use normal pages
and soft_offline_huge_page for in-use hugetlbfs pages. Both of them will
done the same effort as for soft offline free pages set PG_hwpoison, increase
num_poisoned_pages etc, this patch centralize do them in soft_offline_page.
Signed-off-by: Wanpeng Li <liw...@linux.vnet.ibm.com>
---
mm/memory-failure.c | 16 ++++------------
1 file changed, 4 insertions(+), 12 deletions(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 0a52571..3226de1 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1486,15 +1486,9 @@ static int soft_offline_huge_page(struct page *page, int
flags)
ret = migrate_huge_page(hpage, new_page, MPOL_MF_MOVE_ALL,
MIGRATE_SYNC);
put_page(hpage);
- if (ret) {
+ if (ret)
pr_info("soft offline: %#lx: migration failed %d, type %lx\n",
pfn, ret, page->flags);
- } else {
- set_page_hwpoison_huge_page(hpage);
- dequeue_hwpoisoned_huge_page(hpage);
- atomic_long_add(1 << compound_order(hpage),
- &num_poisoned_pages);
- }
return ret;
}
@@ -1530,8 +1524,6 @@ static int __soft_offline_page(struct page *page, int
flags)
if (ret == 1) {
put_page(page);
pr_info("soft_offline: %#lx: invalidated\n", pfn);
- SetPageHWPoison(page);
- atomic_long_inc(&num_poisoned_pages);
return 0;
}
@@ -1572,11 +1564,9 @@ static int __soft_offline_page(struct page *page, int
flags)
lru_add_drain_all();
if (!is_free_buddy_page(page))
drain_all_pages();
- SetPageHWPoison(page);
if (!is_free_buddy_page(page))
pr_info("soft offline: %#lx: page leaked\n",
pfn);
- atomic_long_inc(&num_poisoned_pages);
}
} else {
pr_info("soft offline: %#lx: isolation failed: %d, page count
%d, type %lx\n",
@@ -1633,7 +1623,9 @@ int soft_offline_page(struct page *page, int flags)
ret = soft_offline_huge_page(page, flags);
else
ret = __soft_offline_page(page, flags);
- } else { /* for free pages */
+ }
+
+ if (!ret) {
if (PageHuge(page)) {
set_page_hwpoison_huge_page(hpage);
dequeue_hwpoisoned_huge_page(hpage);
--
1.8.1.2
--
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