mm/hmm: fault non-owner device private entries

[linux-2.6-microblaze.git] / mm / readahead.c

diff --git a/mm/readahead.c b/mm/readahead.c
index 57a0151..fdcd28c 100644 (file)
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -510,6 +510,7 @@ void page_cache_ra_order(struct readahead_control *ractl,
                        new_order--;
        }
 
+       filemap_invalidate_lock_shared(mapping);
        while (index <= limit) {
                unsigned int order = new_order;
 
@@ -536,6 +537,7 @@ void page_cache_ra_order(struct readahead_control *ractl,
        }
 
        read_pages(ractl);
+       filemap_invalidate_unlock_shared(mapping);
 
        /*
         * If there were already pages in the page cache, then we may have