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Don't dynamically allocate data structures for KTLS crypto requests.
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Authored by jhb on Jul 16 2020, 6:46 PM.

Details

Summary

Allocate iovec arrays and struct cryptop and struct ocf_operation
objects on the stack to reduce avoid the overhead of malloc().

These structures are all small enough to fit on the stack of the KTLS
worker threads.

Test Plan
  • tested in production at Netflix and on my own testboxes

Diff Detail

Repository
rS FreeBSD src repository
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.