The patch titled
Subject: mm,hwpoison: return -EBUSY when migration fails
has been removed from the -mm tree. Its filename was
mmhwpoison-return-ebusy-when-migration-fails.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Oscar Salvador <osalvador@xxxxxxx>
Subject: mm,hwpoison: return -EBUSY when migration fails
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@xxxxxxx
Signed-off-by: Oscar Salvador <osalvador@xxxxxxx>
Acked-by: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory-failure.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/mm/memory-failure.c~mmhwpoison-return-ebusy-when-migration-fails
+++ a/mm/memory-failure.c
@@ -1855,11 +1855,11 @@ static int __soft_offline_page(struct pa
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;
_
Patches currently in -mm which might be from osalvador@xxxxxxx are
