NTFS: - Add disable_sparse mount option together with a per volume sparse

	enable bit which is set appropriately and a per inode sparse disable
	bit which is preset on some system file inodes as appropriate.
      - Enforce that sparse support is disabled on NTFS volumes pre 3.0.

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/ntfs/inode.h b/fs/ntfs/inode.h
index 56b2d6ec33f7..6eb99777a722 100644
--- a/fs/ntfs/inode.h
+++ b/fs/ntfs/inode.h
@@ -2,7 +2,7 @@
  * inode.h - Defines for inode structures NTFS Linux kernel driver. Part of
  *           the Linux-NTFS project.
  *
- * Copyright (c) 2001-2004 Anton Altaparmakov
+ * Copyright (c) 2001-2005 Anton Altaparmakov
  * Copyright (c) 2002 Richard Russon
  *
  * This program/include file is free software; you can redistribute it and/or
@@ -166,6 +166,7 @@ typedef enum {
         NI_Sparse,              /* 1: Unnamed data attr is sparse (f).
                                    1: Create sparse files by default (d).
                                    1: Attribute is sparse (a). */
+        NI_SparseDisabled,      /* 1: May not create sparse regions. */
         NI_TruncateFailed,      /* 1: Last ntfs_truncate() call failed. */
 } ntfs_inode_state_bits;
 
@@ -218,6 +219,7 @@ NINO_FNS(IndexAllocPresent)
 NINO_FNS(Compressed)
 NINO_FNS(Encrypted)
 NINO_FNS(Sparse)
+NINO_FNS(SparseDisabled)
 NINO_FNS(TruncateFailed)
 
 /*