NFS: Make directIO aware of compound pages...

 ...and avoid calling set_page_dirty on them

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index fd7ac5e..10ae377 100644 (file)
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -122,9 +122,10 @@ nfs_free_user_pages(struct page **pages, int npages, int do_dirty)
 {
        int i;
        for (i = 0; i < npages; i++) {
-               if (do_dirty)
-                       set_page_dirty_lock(pages[i]);
-               page_cache_release(pages[i]);
+               struct page *page = pages[i];
+               if (do_dirty && !PageCompound(page))
+                       set_page_dirty_lock(page);
+               page_cache_release(page);
        }
        kfree(pages);
 }