mm/balloon_compaction: suppress allocation warnings

There is no reason to print warnings when balloon page allocation fails,
as they are expected and can be handled gracefully.  Since VMware
balloon now uses balloon-compaction infrastructure, and suppressed these
warnings before, it is also beneficial to suppress these warnings to
keep the same behavior that the balloon had before.

Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Nadav Amit <namit@vmware.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>

diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c
index 798275a51887ca82b378ee45c86671894c4bdf74..26de020aae7b407c7ff5b1ae01eea92ad18d4e9e 100644 (file)
--- a/mm/balloon_compaction.c
+++ b/mm/balloon_compaction.c
@@ -124,7 +124,8 @@ EXPORT_SYMBOL_GPL(balloon_page_list_dequeue);
 struct page *balloon_page_alloc(void)
 {
        struct page *page = alloc_page(balloon_mapping_gfp_mask() |
-                                      __GFP_NOMEMALLOC | __GFP_NORETRY);
+                                      __GFP_NOMEMALLOC | __GFP_NORETRY |
+                                      __GFP_NOWARN);
        return page;
 }
 EXPORT_SYMBOL_GPL(balloon_page_alloc);