From: David Hildenbrand david@redhat.com
[ 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 david@redhat.com Reviewed-by: Ritesh Harjani (IBM) ritesh.list@gmail.com Cc: Christophe Leroy christophe.leroy@csgroup.eu Cc: Madhavan Srinivasan maddy@linux.ibm.com Cc: Michael Ellerman mpe@ellerman.id.au Cc: Nicholas Piggin npiggin@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- 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 5e0a718d1be7..8c1f9721756e 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);