Dan Streetman writes:
> You suggested giving direct access to the mutex, but this patch just
> provides lock/unlock functions to the appropriate mutex, which seemed
> cleaner and clearer to me, but if you prefer the direct mutex access
> I can update the patch for that.
Happy with your judgement
Add a "param_lock" mutex to each module, and update params.c to use
the correct built-in or module mutex while locking kernel params.
Remove the kparam_block_sysfs_r/w() macros, replace them with direct
calls to kernel_param_[un]lock(module).
The kernel param code currently uses a single mutex to
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