Hi
Maybe a silly question...why do we use mapped memory (allocated by
vmalloc) for inserting a module into the kernel ?
I can see only drawbacks:
- It consumes TLB entries,
- When accessing to the module's code, we use TLB entries which can
be bad for interrupt latencies. For instance: if the module has an
interrupt handler and the module's code in still not mapped in the
TLB, we got a page fault...
- Modules are usually loaded at startup, at this time the memory
should not be fragmented.
Thanks
