diff options
| -rw-r--r-- | mm/zswap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/zswap.c b/mm/zswap.c index 0823cadd02b6..a1c883c68ef6 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -893,11 +893,14 @@ static bool zswap_compress(struct page *page, struct zswap_entry *entry, * to the active LRU list in the case. */ if (comp_ret || !dlen || dlen >= PAGE_SIZE) { + rcu_read_lock(); if (!mem_cgroup_zswap_writeback_enabled( folio_memcg(page_folio(page)))) { + rcu_read_unlock(); comp_ret = comp_ret ? comp_ret : -EINVAL; goto unlock; } + rcu_read_unlock(); comp_ret = 0; dlen = PAGE_SIZE; dst = kmap_local_page(page); |