fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps

CURRENT_TIME_SEC is not y2038 safe. current_time() will
be transitioned to use 64 bit time along with vfs in a
separate patch.
There is no plan to transistion CURRENT_TIME_SEC to use
y2038 safe time interfaces.

current_time() will also be extended to use superblock
range checking parameters when range checking is introduced.

This works because alloc_super() fills in the the s_time_gran
in super block to NSEC_PER_SEC.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/omfs/dir.c b/fs/omfs/dir.c
index c8cbf3b..9a89164 100644
--- a/fs/omfs/dir.c
+++ b/fs/omfs/dir.c
@@ -143,7 +143,7 @@
 	mark_buffer_dirty(bh);
 	brelse(bh);
 
-	dir->i_ctime = CURRENT_TIME_SEC;
+	dir->i_ctime = current_time(dir);
 
 	/* mark affected inodes dirty to rebuild checksums */
 	mark_inode_dirty(dir);
@@ -395,7 +395,7 @@
 	if (err)
 		goto out;
 
-	old_inode->i_ctime = CURRENT_TIME_SEC;
+	old_inode->i_ctime = current_time(old_inode);
 	mark_inode_dirty(old_inode);
 out:
 	return err;