From 2f3139eaae9905d723674e53dfdd970e9c92fa6b Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Mon, 5 Jan 2026 12:52:12 -0500 Subject: [PATCH] powerpc/pseries/cmm: adjust BALLOON_MIGRATE when migrating pages [ Upstream commit 0da2ba35c0d532ca0fe7af698b17d74c4d084b9a ] Let's properly adjust BALLOON_MIGRATE like the other drivers. Note that the INFLATE/DEFLATE events are triggered from the core when enqueueing/dequeueing pages. This was found by code inspection. Link: https://lkml.kernel.org/r/20251021100606.148294-3-david@redhat.com Fixes: fe030c9b85e6 ("powerpc/pseries/cmm: Implement balloon compaction") Signed-off-by: David Hildenbrand Reviewed-by: Ritesh Harjani (IBM) Cc: Christophe Leroy Cc: Madhavan Srinivasan Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Signed-off-by: Andrew Morton Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/platforms/pseries/cmm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c index f4c9a8753fff..851670ad515a 100644 --- a/arch/powerpc/platforms/pseries/cmm.c +++ b/arch/powerpc/platforms/pseries/cmm.c @@ -532,6 +532,7 @@ static int cmm_migratepage(struct balloon_dev_info *b_dev_info, spin_lock_irqsave(&b_dev_info->pages_lock, flags); balloon_page_insert(b_dev_info, newpage); + __count_vm_event(BALLOON_MIGRATE); b_dev_info->isolated_pages--; spin_unlock_irqrestore(&b_dev_info->pages_lock, flags);