> Yes, but user space can't trigger access from interrupt context, can it?
> It's just a syscall, so we're executing normally but in kernel context. bh's
> are run by the scheduler in between tasks;
It would be not so bad idea to grep kernel for do_bottom_half.
You found only one place, there exist at least two more 8)8)
BHs are run not between tasks, they are run not depending on tasks
and in parallel with tasks. Does it answer to your question?
Alexey Kuznetsov
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