MANAGING READ/WRITE LOCKS FOR MULTIPLE CPU CORES FOR EFFICIENT ACCESS TO STORAGE ARRAY RESOURCES

A technique for managing resources on a storage array having multiple CPU cores releases share locks on a resource by decrementing share lock counters associated with the CPU cores that release the share locks, regardless of whether these are the same as the CPU cores that acquired the share locks. As each CPU core changes its own share lock counter, cache trashing caused by changing share lock counters associated with other CPU cores can be avoided.