diff options
| -rw-r--r-- | mm/vmscan.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 1a47b52efd02..a2ae04f94ee7 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -166,7 +166,7 @@ static int shrink_slab(long scanned, unsigned int gfp_mask) } /* Must be called with page's pte_chain_lock held. */ -static inline int page_mapping_inuse(struct page * page) +static inline int page_mapping_inuse(struct page *page) { struct address_space *mapping = page->mapping; @@ -178,8 +178,14 @@ static inline int page_mapping_inuse(struct page * page) if (!mapping) return 0; + /* Be more reluctant to reclaim swapcache than pagecache */ + if (PageSwapCache(page)) + return 1; + /* File is mmap'd by somebody. */ - if (!list_empty(&mapping->i_mmap) || !list_empty(&mapping->i_mmap_shared)) + if (!list_empty(&mapping->i_mmap)) + return 1; + if (!list_empty(&mapping->i_mmap_shared)) return 1; return 0; |