1 files changed, 16 insertions, 4 deletions

diff --git a/fs/afs/file.c b/fs/afs/file.c
index ba7b71fba34b..0d5b8508869b 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -30,6 +30,7 @@ static int afs_readpages(struct file *filp, struct address_space *mapping,
 
 const struct file_operations afs_file_operations = {
         .open           = afs_open,
+        .flush          = afs_flush,
         .release        = afs_release,
         .llseek         = generic_file_llseek,
         .read_iter      = generic_file_read_iter,
@@ -184,10 +185,13 @@ int afs_page_filler(void *data, struct page *page)
                 if (!req)
                         goto enomem;
 
+                /* We request a full page.  If the page is a partial one at the
+                 * end of the file, the server will return a short read and the
+                 * unmarshalling code will clear the unfilled space.
+                 */
                 atomic_set(&req->usage, 1);
                 req->pos = (loff_t)page->index << PAGE_SHIFT;
-                req->len = min_t(size_t, i_size_read(inode) - req->pos,
-                                 PAGE_SIZE);
+                req->len = PAGE_SIZE;
                 req->nr_pages = 1;
                 req->pages[0] = page;
                 get_page(page);
@@ -208,7 +212,13 @@ int afs_page_filler(void *data, struct page *page)
                         fscache_uncache_page(vnode->cache, page);
 #endif
                         BUG_ON(PageFsCache(page));
-                        goto error;
+
+                        if (ret == -EINTR ||
+                            ret == -ENOMEM ||
+                            ret == -ERESTARTSYS ||
+                            ret == -EAGAIN)
+                                goto error;
+                        goto io_error;
                 }
 
                 SetPageUptodate(page);
@@ -227,10 +237,12 @@ int afs_page_filler(void *data, struct page *page)
         _leave(" = 0");
         return 0;
 
+io_error:
+        SetPageError(page);
+        goto error;
 enomem:
         ret = -ENOMEM;
 error:
-        SetPageError(page);
         unlock_page(page);
         _leave(" = %d", ret);
         return ret;