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Unify ignoring EEXIST from zvol_create_minor().

Description

Unify ignoring EEXIST from zvol_create_minor().

This fixes creation of zvol devices for snapshots during zfs receive,
that previously failed with "ZFS WARNING: Unable to create ZVOL" message.
This solution is not perfect, but IMHO better then it was before.

MFC after: 2 weeks

Details

Committed
mavMar 24 2016, 10:10 AM
Parents
rS297231: Handle the driver KPI change from r292373. Ensure that managed device
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