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 23365e76a3ce37..8a1ded8fa97310 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -1051,14 +1051,20 @@ static int zswap_writeback_entry(struct zswap_entry *entry, struct folio *folio; struct mempolicy *mpol; bool folio_was_allocated; + struct swap_info_struct *si; struct writeback_control wbc = { .sync_mode = WB_SYNC_NONE, }; /* try to allocate swap cache folio */ + si = get_swap_device(swpentry); + if (!si) + return -EEXIST; + mpol = get_task_policy(current); folio = __read_swap_cache_async(swpentry, GFP_KERNEL, mpol, - NO_INTERLEAVE_INDEX, &folio_was_allocated, true); + NO_INTERLEAVE_INDEX, &folio_was_allocated, true); + put_swap_device(si); if (!folio) return -ENOMEM; |