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authorHeiko Carstens <hca@linux.ibm.com>2024-11-26 11:25:15 +0100
committerHeiko Carstens <hca@linux.ibm.com>2024-11-27 12:55:15 +0100
commitf93d6d62e4697b0df1474f0b1314c3c158335f0a (patch)
tree204e0771addf59df2ca7f9b2cfcb94ebbd814ea3 /tools/perf/scripts/python/task-analyzer.py
parent7061c63919bde3bb0daa63e700a117ab1f2c97b1 (diff)
KVM: s390: Increase size of union sca_utility to four bytes
kvm_s390_update_topology_change_report() modifies a single bit within sca_utility using cmpxchg(). Given that the size of the sca_utility union is two bytes this generates very inefficient code. Change the size to four bytes, so better code can be generated. Even though the size of sca_utility doesn't reflect architecture anymore this seems to be the easiest and most pragmatic approach to avoid inefficient code. Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Acked-by: Janosch Frank <frankja@linux.ibm.com> Link: https://lore.kernel.org/r/20241126102515.3178914-4-hca@linux.ibm.com Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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