I saw we call IS_ERR(ptr) after executing kthread_run() each time. But we don't need to call IS_ERR(ptr) after kmalloc().
My understanding is, the kernel pointer ptr for IS_ERR to check should be page aligned, so its kernel address should be less than 0xfffff000(or 0xffff ffff ffff f000, 64bits), kthread_run returns a struct task_struct pointer,which is always page aligned, however the pointer returned by kmalloc() might not be page aligned, so we cannot use IS_ERR to check. Is my understanding correct? Thanks Jason - 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/
