Hello! Dne četrtek 27. februar 2003 20:47 je Frank A. Uepping napisal(a): > Is that true that a spinlock gets undefined when compiled > on a uniprocessor system? No. > Thus spinlocks can't be used to provide mutual exclusion between > concurrently executing processes on a uniprocessor system, isn't is? No. I use them on UP as mutexes.. heavily. You use spinlock if structures you are protecting are being accessed from interrupt/timer/softirq context. Mutexes are to be used when structures are accessed *only* from process context. -- best regards, Rok Papež. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/