NTFS: Fix ntfs_{read,write}page() to cope with concurrent truncates better.
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index dc4bbe3..7ec0451 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -1166,6 +1166,8 @@
*
* Return 0 on success and -errno on error. In the error case, the inode will
* have had make_bad_inode() executed on it.
+ *
+ * Note this cannot be called for AT_INDEX_ALLOCATION.
*/
static int ntfs_read_locked_attr_inode(struct inode *base_vi, struct inode *vi)
{
@@ -1242,8 +1244,8 @@
}
}
/*
- * The encryption flag set in an index root just means to
- * compress all files.
+ * The compressed/sparse flag set in an index root just means
+ * to compress all files.
*/
if (NInoMstProtected(ni) && ni->type != AT_INDEX_ROOT) {
ntfs_error(vi->i_sb, "Found mst protected attribute "
@@ -1319,8 +1321,7 @@
"the mapping pairs array.");
goto unm_err_out;
}
- if ((NInoCompressed(ni) || NInoSparse(ni)) &&
- ni->type != AT_INDEX_ROOT) {
+ if (NInoCompressed(ni) || NInoSparse(ni)) {
if (a->data.non_resident.compression_unit != 4) {
ntfs_error(vi->i_sb, "Found nonstandard "
"compression unit (%u instead "