Merge tag 'xtensa-20180225' of git://github.com/jcmvbkbc/linux-xtensa

[linux-block.git] / mm / zswap.c

diff --git a/mm/zswap.c b/mm/zswap.c
index c004aa4fd3f481e6686ecdfe78f64885637556b9..61a5c41972dba22bc35179a13d40e900dea679b6 100644 (file)
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -1007,6 +1007,12 @@ static int zswap_frontswap_store(unsigned type, pgoff_t offset,
        u8 *src, *dst;
        struct zswap_header zhdr = { .swpentry = swp_entry(type, offset) };
 
+       /* THP isn't supported */
+       if (PageTransHuge(page)) {
+               ret = -EINVAL;
+               goto reject;
+       }
+
        if (!zswap_enabled || !tree) {
                ret = -ENODEV;
                goto reject;