drop vmerge accounting
Mikulas Patocka authored

Remove hw_segments field from struct bio and struct request. Without virtual
merge accounting they have no purpose.
Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
5df97b91
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