Ingo Molnar writes:
> From: Ingo Molnar <[email protected]>
[...]
> +
> +enum bdev_bd_mutex_lock_type
> +{
> + BD_MUTEX_NORMAL,
> + BD_MUTEX_WHOLE,
> + BD_MUTEX_PARTITION
> +};
In some situations well-defined and finite set of "nesting levels" does
not exist. For example, if one has a tree with per-node locking, and
algorithms acquire multiple node locks left-to-right in the tree
order. Reiser4 does this.
Can nested locking restrictions be weakened for certain lock types?
Nikita.
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