memory tiering: count PGPROMOTE_SUCCESS when mem tiering is enabled.

memory tiering can be enabled/disabled at runtime and
sysctl_numa_balancing_mode & NUMA_BALANCING_MEMORY_TIERING is used to
check it.  In migrate_misplaced_folio(), the check is missing when
PGPROMOTE_SUCCESS is incremented.  Add the missing check.

Link: https://lkml.kernel.org/r/[email protected]
Fixes: 33024536bafd ("memory tiering: hot page selection with hint page fault latency")
Reported-by: Kefeng Wang <[email protected]>
Closes: https://lore.kernel.org/linux-mm/[email protected]/
Signed-off-by: Zi Yan <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Reviewed-by: Kefeng Wang <[email protected]>
Cc: Baolin Wang <[email protected]>
Cc: "Huang, Ying" <[email protected]>
Cc: Lorenzo Stoakes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions