In message <200808091637.33820.jhb@freebsd.org>, John Baldwin writes:
>So currently the MOD_QUIESCE event is posted to a module when unloading a kld
>so it can veto non-forced unloads. However, the current implementation in
>the kernel linker is to run through all the modules in a file, posting
>MOD_QUIESCE followed by MOD_UNLOAD on each module serially. Thus, if you
>have multiple modules in a single kld and one of the modules veto's an unload
>request via MOD_QUIESCE, you don't know as the module author if any of your
>modules were unloaded via MOD_UNLOAD or not. I think a better approach would
>be to change the kernel linker to invoke MOD_QUIESCE on all modules in a
>single pass first. If none of those fail (or it's a forced unload), then it
can do a second pass invoking MOD_UNLOAD on all the modules.
I thought it already worked that way, so no objection.
--
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