xfs: fix missing error check in xfs_rtfree_range

[safe/jmp/linux-2.6] / fs / afs / file.c

diff --git a/fs/afs/file.c b/fs/afs/file.c
index 7a1d942..39b3016 100644 (file)
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -102,6 +102,7 @@ int afs_release(struct inode *inode, struct file *file)
        return 0;
 }
 
+#ifdef CONFIG_AFS_FSCACHE
 /*
  * deal with notification that a page was read from the cache
  */
@@ -117,6 +118,7 @@ static void afs_file_readpage_read_complete(struct page *page,
                SetPageUptodate(page);
        unlock_page(page);
 }
+#endif
 
 /*
  * AFS read page from file, directory or symlink
@@ -132,9 +134,16 @@ static int afs_readpage(struct file *file, struct page *page)
 
        inode = page->mapping->host;
 
-       ASSERT(file != NULL);
-       key = file->private_data;
-       ASSERT(key != NULL);
+       if (file) {
+               key = file->private_data;
+               ASSERT(key != NULL);
+       } else {
+               key = afs_request_key(AFS_FS_S(inode->i_sb)->volume->cell);
+               if (IS_ERR(key)) {
+                       ret = PTR_ERR(key);
+                       goto error_nokey;
+               }
+       }
 
        _enter("{%x},{%lu},{%lu}", key_serial(key), inode->i_ino, page->index);
 
@@ -205,12 +214,17 @@ static int afs_readpage(struct file *file, struct page *page)
                unlock_page(page);
        }
 
+       if (!file)
+               key_put(key);
        _leave(" = 0");
        return 0;
 
 error:
        SetPageError(page);
        unlock_page(page);
+       if (!file)
+               key_put(key);
+error_nokey:
        _leave(" = %d", ret);
        return ret;
 }
@@ -301,7 +315,6 @@ static void afs_invalidatepage(struct page *page, unsigned long offset)
                        struct afs_vnode *vnode = AFS_FS_I(page->mapping->host);
                        fscache_wait_on_page_write(vnode->cache, page);
                        fscache_uncache_page(vnode->cache, page);
-                       ClearPageFsCache(page);
                }
 #endif
 
@@ -335,17 +348,9 @@ static int afs_releasepage(struct page *page, gfp_t gfp_flags)
        /* deny if page is being written to the cache and the caller hasn't
         * elected to wait */
 #ifdef CONFIG_AFS_FSCACHE
-       if (PageFsCache(page)) {
-               if (fscache_check_page_write(vnode->cache, page)) {
-                       if (!(gfp_flags & __GFP_WAIT)) {
-                               _leave(" = F [cache busy]");
-                               return 0;
-                       }
-                       fscache_wait_on_page_write(vnode->cache, page);
-               }
-
-               fscache_uncache_page(vnode->cache, page);
-               ClearPageFsCache(page);
+       if (!fscache_maybe_release_page(vnode->cache, page, gfp_flags)) {
+               _leave(" = F [cache busy]");
+               return 0;
        }
 #endif