* fs_{write|read}_pages() now has an additional argument "mayBlock".

* the page writer don't allow to block, while all other writers do. This fixes
  bug #1509. The reason the page writer needs this is because it marks several
  pages from different caches as busy.
* Fixed a warning about ASSERT being defined already in BFS, since
  util/DoublyLinkedList.h now includes debug.h.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22434 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/fs_shell/fssh_fs_interface.h

@@ -1,11 +1,12 @@
-/* File System Interface Layer Definition
- *
- * Copyright 2004-2006, Haiku Inc. All Rights Reserved.
+/*
+ * Copyright 2004-2007, Haiku Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef _FSSH_FS_INTERFACE_H
 #define _FSSH_FS_INTERFACE_H
 
+/*! File System Interface Layer Definition */
+
 
 #include "fssh_disk_device_defs.h"
 #include "fssh_module.h"
@@ -95,10 +96,12 @@ typedef struct fssh_file_system_module_info {
 				fssh_fs_cookie cookie);
 	fssh_status_t (*read_pages)(fssh_fs_volume fs, fssh_fs_vnode vnode,
 				fssh_fs_cookie cookie, fssh_off_t pos, const fssh_iovec *vecs,
-				fssh_size_t count, fssh_size_t *_numBytes, bool reenter);
+				fssh_size_t count, fssh_size_t *_numBytes, bool mayBlock,
+				bool reenter);
 	fssh_status_t (*write_pages)(fssh_fs_volume fs, fssh_fs_vnode vnode,
 				fssh_fs_cookie cookie, fssh_off_t pos, const fssh_iovec *vecs,
-				fssh_size_t count, fssh_size_t *_numBytes, bool reenter);
+				fssh_size_t count, fssh_size_t *_numBytes, bool mayBlock,
+				bool reenter);
 
 	/* cache file access */
 	fssh_status_t (*get_file_map)(fssh_fs_volume fs, fssh_fs_vnode vnode,