On Tue, May 08, 2007, Jonathan Corbet wrote: > > I just took a shot at turning this into something more like a normal > document: > > http://lwn.net/Articles/233479/
I think the "jiffies variable is special" part misses the "for stupid legacy reasons" explanation. According to the other volatile rules one should use something like that: extern unsigned long __jiffies; static inline unsigned long read_ulong(unsigned long *addr) { return *(volatile unsigned long *)addr; } static inline unsigned long get_jiffies(void) { return read_ulong(&__jiffies); } But of course changing all references to jiffies in the kernel would be insane, thus jiffies is special "for stupid legacy reasons". Right? Johannes - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/