On Fri, Jun 21, 2002 at 05:11:26PM +0300, Momchil Velikov wrote: > >>>>> "Alan" == Alan Stern <stern@rowland.org> writes: > Alan> But you didn't answer my first question. What are the essential > Alan> differences between a struct completion and a semaphore? > > Hell if I can find any difference. Except that semaphores (in Linux > (the kernel)) have machine dependent implementations and are likely to > be much faster. iirc, semaphores cannot be safely stored on the stack, hence the change from up_and_exit() to complete_and_exit(). I could be completely wrong though ... regards john > > Regards, > -velco > -- > Kernelnewbies: Help each other learn about the Linux kernel. > Archive: http://mail.nl.linux.org/kernelnewbies/ > FAQ: http://kernelnewbies.org/faq/ > -- "If a thing is not diminished by being shared, it is not rightly owned if it is only owned & not shared." - St. Augustine -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
