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Revert r318180 and re-enable AIO tests on md(4) by default. The 'physio' fast-path used by AIO requests on md(4) devices, is not gated on the unsafe_aio knob. Prior to r327755, some AIO requests could fail the fast-path and fall back to the slow...
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Authored by jhb on Mar 19 2018, 5:47 PM.
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Details

Summary

...-path (requests for devices
not supporting unmapped I/O and requests which failed with EFAULT during
the fast-path). However, those cases now return a suitable error rather
than using the slow-path.

PR: 217261

Test Plan
  • was never able to reproduce the original failures reported in Jenkins even with extra test programs

Diff Detail

Repository
rS FreeBSD src repository - subversion
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