> Are you sure, you can implement SMP-safe, atomic operations (which you need > for all up()/down() in user space) WITHOUT using privileged > instructions on ALL archs Linux supports? You don't need to. For some architectures the semaphore code would always call into the kernel. For those that allow fast locks in userspace it won't. The API is the thing, and the public exposure would I assume be pthreads - 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/
- Re: light weight user level semaphores Linus Torvalds
- Re: light weight user level semaphores Alexander Viro
- Re: light weight user level semaphores Ulrich Drepper
- Re: light weight user level semaphores Alan Cox
- Re: light weight user level semaphores Ulrich Drepper
- Re: light weight user level semaphore... Alan Cox
- Re: light weight user level semap... Ulrich Drepper
- Re: light weight user level semaphores Ingo Oeser
- Re: light weight user level semaphores Ulrich Drepper
- Re: light weight user level semaphores Linus Torvalds
- Re: light weight user level semaphores Alan Cox
- Re: light weight user level semaphores Linus Torvalds
- Re: light weight user level semaphores Ulrich Drepper
- Re: light weight user level semaphore... Linus Torvalds
- Re: light weight user level semap... Ulrich Drepper
- Re: light weight user level semap... Alexander Viro
- Re: light weight user level semap... Ulrich Drepper
- Re: light weight user level semaphores Ulrich Drepper
- Re: light weight user level semaphores Alon Ziv
- Re: light weight user level semaphores Alexander Viro