> + ASSERT(vp);
> + zfs_inactive_impl(vp, CRED(), NULL);
> +}
> +
> +/*
> + * This value will be multiplied by zfs_dirty_data_max to determine
> + * the threshold past which we will call zfs_inactive_impl() async.
> + *
> + * Selecting the multiplier is a balance between how long we're willing to
> wait
> + * for delete/free to complete (get shell back, have a NFS thread captive,
> etc)
> + * and reducing the number of active requests in the backing taskq.
> + *
> + * 4 GiB (zfs_dirty_data_max default) * 16 (multiplier default) = 64 GiB
> + * meaning by default we will call zfs_inactive_impl async for vnodes > 64
> GiB
> + */
> +uint16_t zfs_inactive_async_multiplier = 16;
I think making this an "int" or int32_t would be better since that's a common
assumption when tuning with mdb (using the "W" format character).
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