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dm vdo indexer: reorder uds_request to reduce padding
Reorder fields and make uds_request_type and uds_zone_message packed, to squeeze out some space. Use struct_group so the request reset code no longer needs to care about field order. On x86_64 this reduces the struct size from 144 to 120, which saves 48 kB (about 12%) per VDO hash zone. Signed-off-by: Ken Raeburn <raeburn@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
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Ken Raeburn
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Mikulas Patocka
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Feb 25, 2025
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