On Wed, Jun 21, 2023 at 10:45:06AM -0400, Jeff Layton wrote:

struct timespec64 has unused bits in the tv_nsec field that can be used
for other purposes. In future patches, we're going to change how the
inode->i_ctime is accessed in certain inodes in order to make use of
them. In order to do that safely though, we'll need to eradicate raw
accesses of the inode->i_ctime field from the kernel.

Add new accessor functions for the ctime that we can use to replace them.

Signed-off-by: Jeff Layton <jlayton@kernel.org>

Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>

  Luis