On Sun, 2008-05-04 at 20:41 -0400, Sean MacLennan wrote: > This is a bit OT, but I got the warning in the subject from > checkpatch.pl for a piece of code. The code *is* using a mutex. Does it > actually mean I shouldn't use a mutex? > > The code declares a global mutex: > > static DECLARE_MUTEX(list_lock); > > The odds of two accesses to the list_lock at the same time are zero. > But it would be Very Bad(tm) if it did happen. Since the odds of > contention are near zero, the cost of the mutex is near zero, so I put > it in. > > I think I can safely ignore the warning, but I want to make sure....
Show us the code... It could be a bug in checkpatch or you using the wrong functions somewhere ... Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
