From 49cac03a8f0a56cafa5329911564c97c130ced43 Mon Sep 17 00:00:00 2001 From: Zi Yan Date: Tue, 17 Oct 2023 12:31:29 -0400 Subject: mm/migrate: add nr_split to trace_mm_migrate_pages stats. Add nr_split to trace_mm_migrate_pages for large folio (including THP) split events. [akpm@linux-foundation.org: cleanup per Huang, Ying] Link: https://lkml.kernel.org/r/20231017163129.2025214-2-zi.yan@sent.com Signed-off-by: Zi Yan Reviewed-by: "Huang, Ying" Reviewed-by: Baolin Wang Cc: David Hildenbrand Cc: Huang Ying Cc: Matthew Wilcox Signed-off-by: Andrew Morton --- mm/migrate.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'mm') diff --git a/mm/migrate.c b/mm/migrate.c index 53244d283c3e..125194f5af0f 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1686,7 +1686,7 @@ static int migrate_pages_batch(struct list_head *from, if (!ret) { stats->nr_thp_split += is_thp; - stats->nr_split += is_large; + stats->nr_split++; break; } else if (reason == MR_LONGTERM_PIN && ret == -EAGAIN) { @@ -1979,7 +1979,8 @@ out: count_vm_events(THP_MIGRATION_SPLIT, stats.nr_thp_split); trace_mm_migrate_pages(stats.nr_succeeded, stats.nr_failed_pages, stats.nr_thp_succeeded, stats.nr_thp_failed, - stats.nr_thp_split, mode, reason); + stats.nr_thp_split, stats.nr_split, mode, + reason); if (ret_succeeded) *ret_succeeded = stats.nr_succeeded; -- cgit v1.2.3