On Wed, 29 May 2002, Hansen Martin wrote: > In what context? > To access userspace data, you must be in a process context. Fx. you cannot > access userspace data from an interrupt. You can access userland address space from kernel context *and* interrupt context or any context where you're allowed to access user virtual address space, the reason why you can't do copy_from_user from interrupt context is because it can sleep. -- http://function.linuxpower.ca -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
