On Jul 28 2007 13:36, Bernd Petrovitsch wrote: > >Unless I misunderstand the question, the "write" and "writev" function >of the "struct file_operations" should return an appropriate error value >(which is here -EACCES). >You may think of returning an error in the "open" if someone wants to >open it to write to it (so that the must open it read-only). >But I don't know if that is common practice or not (or even disliked) as >it may interfere with not properly implemented tools which open devices >read-write even if they never write to it.
Yes it is, I believe. When mount(8) gets an error from mount(2), it retries with MS_RDONLY enabled. Jan -- - 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/