tree b8132cd274844812a742b83b49dcc3148b2e6883
parent dfa2064b222c901b05c19ec5b7f42a25f7bee0e3
author Eric Whitney <enwlinux@gmail.com> 1472499911 -0400
committer Theodore Ts'o <tytso@mit.edu> 1472499911 -0400

ext4: enforce online defrag restriction for encrypted files

Online defragging of encrypted files is not currently implemented.
However, the move extent ioctl can still return successfully when
called.  For example, this occurs when xfstest ext4/020 is run on an
encrypted file system, resulting in a corrupted test file and a
corresponding test failure.

Until the proper functionality is implemented, fail the move extent
ioctl if either the original or donor file is encrypted.

Cc: stable@vger.kernel.org
Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>