libublk: add queue single CPU affinity management and effective affin…#24
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libublk: add queue single CPU affinity management and effective affin…#24
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…ity query This commit introduces two new methods for queue affinity management: 1. UblkCtrl::set_queue_single_affinity() - Allows users to set single CPU affinity for specific queues without calling run_target(). This is useful for code paths that bypass create_queue_handlers(). 2. UblkCtrl::get_queue_effective_affinity() - Retrieves the actual CPU affinity of running queue threads using sched_getaffinity syscall. Additional improvements: - Fix queue_selected_cpus initialization to prevent garbage data panic - Refactor create_queue_handlers() to use the new set_queue_single_affinity() - Add UblkQueueAffinity::addr_mut() helper method - Add comprehensive tests for both new methods The changes maintain backward compatibility while providing better control over queue CPU affinity management for advanced use cases. Signed-off-by: Ming Lei <tom.leiming@gmail.com>
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…ity query
This commit introduces two new methods for queue affinity management:
UblkCtrl::set_queue_single_affinity() - Allows users to set single CPU affinity for specific queues without calling run_target(). This is useful for code paths that bypass create_queue_handlers().
UblkCtrl::get_queue_effective_affinity() - Retrieves the actual CPU affinity of running queue threads using sched_getaffinity syscall.
Additional improvements:
The changes maintain backward compatibility while providing better control over queue CPU affinity management for advanced use cases.