From 7d0ffdb279105d9a87b447758ce4a634496abfd1 Mon Sep 17 00:00:00 2001 From: Anton Altaparmakov Date: Wed, 19 Oct 2005 12:21:19 +0100 Subject: NTFS: $EA attributes can be both resident non-resident. Minor tidying. Signed-off-by: Anton Altaparmakov --- fs/ntfs/file.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'fs/ntfs/file.c') diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c index cf2a0e2330df..5fb341a16b52 100644 --- a/fs/ntfs/file.c +++ b/fs/ntfs/file.c @@ -1857,10 +1857,24 @@ static ssize_t ntfs_file_buffered_write(struct kiocb *iocb, if (ni->type != AT_INDEX_ALLOCATION) { /* If file is encrypted, deny access, just like NT4. */ if (NInoEncrypted(ni)) { + /* + * Reminder for later: Encrypted files are _always_ + * non-resident so that the content can always be + * encrypted. + */ ntfs_debug("Denying write access to encrypted file."); return -EACCES; } if (NInoCompressed(ni)) { + /* Only unnamed $DATA attribute can be compressed. */ + BUG_ON(ni->type != AT_DATA); + BUG_ON(ni->name_len); + /* + * Reminder for later: If resident, the data is not + * actually compressed. Only on the switch to non- + * resident does compression kick in. This is in + * contrast to encrypted files (see above). + */ ntfs_error(vi->i_sb, "Writing to compressed files is " "not implemented yet. Sorry."); return -EOPNOTSUPP; -- cgit v1.2.3-59-g8ed1b