return 1;

quoted

+	/*
+	 * Is the previous atime value old than a day? If yes,
 	 * update atime:
 	 */
 	if ((long)(now.tv_sec - inode->i_atime.tv_sec) >= 24*60*60)

I don't think this is a good plan for cluster filesystems, since if the
times on the nodes are not exactly synchronised (we do highly recommend
people run ntp or similar) then this might lead to excessive atime
updating. The current behaviour is to ignore atimes which are in the
future for exactly this reason,

Well, would these "update storms" really be a problem?

AFAICT they should be fairly non-frequent, and worst thing that can
happen is that you'll do as many updates as different time settings,
settling for the lowest value...?
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html