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>
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 6c631db..372c7fc 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -1,7 +1,7 @@
/**
* inode.c - NTFS kernel inode handling. Part of the Linux-NTFS project.
*
- * Copyright (c) 2001-2004 Anton Altaparmakov
+ * Copyright (c) 2001-2005 Anton Altaparmakov
*
* This program/include file is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published
@@ -1731,6 +1731,7 @@
/* Setup the data attribute. It is special as it is mst protected. */
NInoSetNonResident(ni);
NInoSetMstProtected(ni);
+ NInoSetSparseDisabled(ni);
ni->type = AT_DATA;
ni->name = NULL;
ni->name_len = 0;
@@ -2279,6 +2280,8 @@
seq_printf(sf, ",case_sensitive");
if (NVolShowSystemFiles(vol))
seq_printf(sf, ",show_sys_files");
+ if (!NVolSparseEnabled(vol))
+ seq_printf(sf, ",disable_sparse");
for (i = 0; on_errors_arr[i].val; i++) {
if (on_errors_arr[i].val & vol->on_errors)
seq_printf(sf, ",errors=%s", on_errors_arr[i].str);