Well, effectively your reasoning holds, apart for one point: the code should not hang because of that large INITIAL_JIFFIES. What we care about are only the value of jiffies relative to INITIAL_JIFFIES, indeed.
In fact, that code works on 64-bit arch's. But INITIAL_JIFFIES is not 0 to make sure it wraps 5 minutes after the boot, to make sure the wrapping mechanism is debugged. And this, currently, does not happen likely. While on 32-bit archs that construct is like "(unsigned int) (-300*HZ)", on 64-bit archs to get a negative number we'd need something like: (unsigned long)(long)(-300*HZ) or (unsigned long)(-300L*HZ) so that the number is first sign-extended and then casted to unsigned. -- Paolo Giarrusso, aka Blaisorblade Linux registered user n. 292729 http://www.user-mode-linux.org/~blaisorblade ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
