diff options
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 7a4e20e21..0971c63b7 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -150,6 +150,10 @@ int shrink_mmap(int priority, int gfp_mask) } tmp = tmp->b_this_page; } while (tmp != bh); + + /* Refuse to swap out all buffer pages */ + if ((buffermem >> PAGE_SHIFT) * 100 < (buffer_mem.min_percent * num_physpages)) + goto next; } /* We can't throw away shared pages, but we do mark @@ -167,7 +171,7 @@ int shrink_mmap(int priority, int gfp_mask) break; } age_page(page); - if (page->age) + if (page->age || page_cache_size * 100 < (page_cache.min_percent * num_physpages)) break; if (PageSwapCache(page)) { delete_from_swap_cache(page); |