Messages in this thread Patch in this message | | | From | Oscar Salvador <> | Subject | [PATCH] mm,hwpoison: Return -EBUSY when migration fails | Date | Wed, 9 Dec 2020 10:28:18 +0100 |
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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.
Signed-off-by: Oscar Salvador <osalvador@suse.de> --- 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 428991e297e2..1942fb83ac64 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1849,11 +1849,11 @@ 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; -- 2.26.2
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