From: Oscar Salvador osalvador@suse.de
commit 3f4b815a439adfb8f238335612c4b28bc10084d8
Currently, we return -EIO when we fail to migrate the page.
Migrations' failures are rather transient as they can happen due to several reasons, e.g: high page refcount bump, mapping->migrate_page failing etc. All meaning that at that time the page could not be migrated, but that has nothing to do with an EIO error.
Let us return -EBUSY instead, as we do in case we failed to isolate the page.
While are it, let us remove the "ret" print as its value does not change.
Link: https://lkml.kernel.org/r/20201209092818.30417-1-osalvador@suse.de Signed-off-by: Oscar Salvador osalvador@suse.de Acked-by: Naoya Horiguchi naoya.horiguchi@nec.com Acked-by: Vlastimil Babka vbabka@suse.cz Cc: David Hildenbrand david@redhat.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Hanjun Guo guohanjun@huawei.com --- mm/memory-failure.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 25fb82320..01445dd 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1856,11 +1856,11 @@ static int __soft_offline_page(struct page *page) pr_info("soft offline: %#lx: %s migration failed %d, type %lx (%pGp)\n", pfn, msg_page[huge], ret, page->flags, &page->flags); if (ret > 0) - ret = -EIO; + ret = -EBUSY; } } else { - pr_info("soft offline: %#lx: %s isolation failed: %d, page count %d, type %lx (%pGp)\n", - pfn, msg_page[huge], ret, page_count(page), page->flags, &page->flags); + pr_info("soft offline: %#lx: %s isolation failed, page count %d, type %lx (%pGp)\n", + pfn, msg_page[huge], page_count(page), page->flags, &page->flags); ret = -EBUSY; } return ret;