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/reiserfs/stree.c b/fs/reiserfs/stree.c
index 4032d1e..a97e352 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -1987,8 +1987,8 @@
 			pathrelse(&s_search_path);
 
 			if (update_timestamps) {
-				inode->i_mtime = CURRENT_TIME_SEC;
-				inode->i_ctime = CURRENT_TIME_SEC;
+				inode->i_mtime = current_time(inode);
+				inode->i_ctime = current_time(inode);
 			}
 			reiserfs_update_sd(th, inode);
 
@@ -2012,8 +2012,8 @@
 update_and_out:
 	if (update_timestamps) {
 		/* this is truncate, not file closing */
-		inode->i_mtime = CURRENT_TIME_SEC;
-		inode->i_ctime = CURRENT_TIME_SEC;
+		inode->i_mtime = current_time(inode);
+		inode->i_ctime = current_time(inode);
 	}
 	reiserfs_update_sd(th, inode);