mm/madvise: don't forget to leave lazy MMU mode in madvise_cold_or_pa…

…geout_pte_range() We need to leave lazy MMU mode before unlocking. Link: https://lkml.kernel.org/r/[email protected] Fixes: b2f557a ("mm/madvise: add cond_resched() in madvise_cold_or_pageout_pte_range()") Signed-off-by: Sergey Senozhatsky <[email protected]> Cc: Jiexun Wang <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
mj22226 · Feb 8, 2024 · 4c2da31 · 4c2da31
1 parent e870920
commit 4c2da31
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/mm/madvise.c b/mm/madvise.c
@@ -429,6 +429,7 @@ static int madvise_cold_or_pageout_pte_range(pmd_t *pmd,
 		if (++batch_count == SWAP_CLUSTER_MAX) {
 			batch_count = 0;
 			if (need_resched()) {
+				arch_leave_lazy_mmu_mode();
 				pte_unmap_unlock(start_pte, ptl);
 				cond_resched();
 				goto restart;