On Fri, Jul 02, 2004 at 10:43:30 +0530, mohanlal jangir wrote: > down and up primitives are used to acquire and release a semaphore, mutex or > any synchronization primitive. init_completion will initialize wait queue Do you need to be reminded, that C is not polymorphic? Also, mutex IS A (special case of) semaphore. > and one flag, so that the wait queue can be used later (in > wait_for_completion). wait_for_completion puts the task into the wait queue > and invokes if the flag is set. > This all you need to do if some part of code is being accessed in more than > one context. It could be kernel context and interrupt context, or your code > might be running in multi processor machine. ------------------------------------------------------------------------------- Jan 'Bulb' Hudec <bulb@ucw.cz>
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