Rusty Russell wrote:
Btw, for the general case, instead of forcing everyone to duplicate, how
about:
cpumask_var_t cpus;
with_cpumask(cpus) {
... code to populate cpus
smp_call_function_some(...);
} end_with_cpumask(cpus);
Where with_cpumask() allocates cpus, and uses a mutex + static fallback
on failure.
I'd prefer not to hide deadlocks that way :(
I'll re-battle with that code to neaten it. There are only a few places
which have these kind of issues.
cpuvar_get_maybe_mutex_lock(...);
...
cpuvar_put_maybe_mutex_unlock(...);
?
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
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