2019-kvm-forum/4700-fast-zero-implementation.html

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   5 <h1>Can you provide me some references?</h1>
   6
   7 <p>
   8   qemu: wire <code>BDRV_REQ_NO_FALLBACK</code>
   9   to <code>NBD_CMD_FLAG_FAST_ZERO</code> in both server and client
  10
  11 <p>
  12   libnbd: add <code>ENOTSUP</code> errno,
  13   add <code>LIBNBD_CMD_FLAG_FAST_ZERO</code> to <code>nbd_zero()</code>
  14   and <code>nbd_aio_zero()</code>
  15
  16 <p>
  17   nbdkit: add support in the following filters and plugins:
  18   <span style="background-color: #b00; color: white;">always fails</span>
  19   <span style="background-color: #0b0; color: white;">always fast</span>
  20   <span style="background-color: #00b; color: white;">conditional</span>
  21
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