* Added a new flag for write stat: B_STAT_SIZE_INSECURE that allows a

file system to not fill newly created space with zeros. 
  BFile::SetSize() now uses this, while [f]truncate() does not. This
  is only a temporary work-around until BFS supports sparse files.
* Apps that want to reserve space to fill up later should use 
  BFile::SetSize() for now, as this will be a lot faster than 
  [f]truncate().
* cache_io() and the functions below now use a special mode when you 
  pass in a NULL buffer: for read access, the cache is only populated
  (useful for prefetching), for write access, the file is filled with
  zeros.
* Implemented BFS's Inode::FillGapWithZeros() using this method now.
* Removed extraneous white space.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24555 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/fs_shell/fssh_api_wrapper.h

@@ -874,6 +874,9 @@
 #define fs_cookie	fssh_fs_cookie
 #define fs_vnode	fssh_fs_vnode
 
+/* additional flags passed to write_stat() */
+#define B_STAT_SIZE_INSECURE	FSSH_B_STAT_SIZE_INSECURE
+
 /* passed to write_fs_info() */
 #define FS_WRITE_FSINFO_NAME	FSSH_FS_WRITE_FSINFO_NAME