/**
* @brief Describes how the disk is shared between activities for each operation
*
- * Disks have different bandwidths for read and write operations. This method
- * allows you to set different sharing policies for each operation:
+ * Disks have different bandwidths for read and write operations, that can have different policies:
* - Read: resource sharing for read operation
* - Write: resource sharing for write
* - ReadWrite: global sharing for read and write operations
*
+ * Note that the NONLINEAR callback is in the critical path of the solver, so it should be fast.
+ *
* @param op Operation type
* @param policy Sharing policy
* @param cb Callback for NONLINEAR policies
