b888429c20
The atomic SDMA_REQ_SEND_DONE bit is set by the process-level code, and then the same process-level code uses the bit to test that all packets have been submitted incurring a costly atomic read. Use a bool type with a READ_ONCE/WRITE_ONCE pairing for this bit, and use the same condition that is used to set the bit to test that all packets have been submitted. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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