Since ptent will not be changed after previous assignment of entry, it is not necessary to do the assignment again.
Signed-off-by: Wei Yang <richardw.y...@linux.intel.com> --- mm/memory.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/memory.c b/mm/memory.c index ddf20bd0c317..d108bb979a08 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1127,7 +1127,6 @@ static unsigned long zap_pte_range(struct mmu_gather *tlb, if (unlikely(details)) continue; - entry = pte_to_swp_entry(ptent); if (!non_swap_entry(entry)) rss[MM_SWAPENTS]--; else if (is_migration_entry(entry)) { -- 2.17.1