On Wed, 2008-03-26 at 18:19 -0700, Christoph Lameter wrote: > On Wed, 26 Mar 2008, Thomas Gleixner wrote: > > > Please use a mutex, not a semaphore. semaphores should only be used > > when you need a counting sempahore. > > Seems that mutexes are mainly useful for 2 processor systems since they > do not allow concurrent read sections. We want multiple processors able > to reclaim pages within the same vma or file concurrently. This means > processors need to be able to concurrently walk potentially long lists of > vmas. confusion between semaphores and rwsems -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
