I am looking for some mechanism for userspace tasks to pass certain functions to kernel and let the kernel execute these functions on behalf of userspace tasks. I know that sysfs can be used with kobject embedded into internal kernel structure to access kernel variables. But is there anyway for userspace tasks to pass a function to kernel to execute through sysfs?
PS: adding syscall in the kernel can certainly satisfy my needs but it is less favorable because the new kernel service I want to add is not that general to be added as a new syscall.
Thanks in advance!
T
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