5bcf5a59c4
In order to prevent user space from modifying the index that belongs to the kernel for shared queues let the kernel use a local copy of the index and copy any new values of that index to the shared rxe_queue_bus struct. This adds more switch statements which decreases the performance of the queue API. Move the type into the parameter list for these functions so that the compiler can optimize out the switch statements when the explicit type is known. Modify all the calls in the driver on performance paths to pass in the explicit queue type. Link: https://lore.kernel.org/r/20210527194748.662636-4-rpearsonhpe@gmail.com Link: https://lore.kernel.org/linux-rdma/20210526165239.GP1002214@@nvidia.com/ Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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