diff options
Diffstat (limited to 'mm/zswap.c')
| -rw-r--r-- | mm/zswap.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/mm/zswap.c b/mm/zswap.c index e6ec3295bdb0..16b2ef7223e1 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -942,9 +942,15 @@ static bool zswap_decompress(struct zswap_entry *entry, struct folio *folio) /* zswap entries of length PAGE_SIZE are not compressed. */ if (entry->length == PAGE_SIZE) { + void *dst; + WARN_ON_ONCE(input->length != PAGE_SIZE); - memcpy_from_sglist(kmap_local_folio(folio, 0), input, 0, PAGE_SIZE); + + dst = kmap_local_folio(folio, 0); + memcpy_from_sglist(dst, input, 0, PAGE_SIZE); dlen = PAGE_SIZE; + kunmap_local(dst); + flush_dcache_folio(folio); } else { sg_init_table(&output, 1); sg_set_folio(&output, folio, PAGE_SIZE, 0); |