diff options
Diffstat (limited to 'mm/swap_state.c')
| -rw-r--r-- | mm/swap_state.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/swap_state.c b/mm/swap_state.c index 3863acd6189c..3d76d80c07d6 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -323,6 +323,10 @@ struct page *__read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask, if (found_page) break; + /* Just skip read ahead for unused swap slot */ + if (!__swp_swapcount(entry)) + return NULL; + /* * Get a new page to read into from swap. */ |