As pointed out by Hugh Dickins, "mm: migrate: Check page_count of THP before migrating" can leave nr_isolated_anon elevated, correct it. This is a fix to mm-migrate-check-page_count-of-thp-before-migrating.patch
Signed-off-by: Mel Gorman <[email protected]> --- mm/migrate.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/mm/migrate.c b/mm/migrate.c index f466827..c387786 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1689,8 +1689,11 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm, if (!isolated || page_count(page) != 2) { count_vm_events(PGMIGRATE_FAIL, HPAGE_PMD_NR); put_page(new_page); - if (isolated) + if (isolated) { putback_lru_page(page); + isolated = 0; + goto out; + } goto out_keep_locked; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
