On Wed, Apr 28, 2010 at 10:06 PM, David Howells <dhowells@xxxxxxxxxx> wrote: > > I suspect you really want to have the semantics defined per-queue. _Either_ a > queue is FIFO (such as processes waiting for a resource so they can do > something with it) _or_ it is LIFO (such as a pool of processes waiting to be > given work). > > How often do the two actually mix? And if they do, is that really an error? > The sock.sk_sleep is used by exclusive and non-exclusive wait queues. exclusive and non-exclusive is identified by wait queues, not wait queue heads. Maybe there is a historical reason. It is much like a hack. -- Regards， Changli Gao(xiaosuo@xxxxxxxxx) -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
