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author | Heiko Carstens <hca@linux.ibm.com> | 2024-11-26 11:25:15 +0100 |
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committer | Heiko Carstens <hca@linux.ibm.com> | 2024-11-27 12:55:15 +0100 |
commit | f93d6d62e4697b0df1474f0b1314c3c158335f0a (patch) | |
tree | 204e0771addf59df2ca7f9b2cfcb94ebbd814ea3 /tools/perf/scripts/python/task-analyzer.py | |
parent | 7061c63919bde3bb0daa63e700a117ab1f2c97b1 (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>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions