write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/Documentation/admin-guide/md.rst
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@@ -5,7 +5,7 @@
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 ---------------------------------
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 Tools that manage md devices can be found at
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-   http://www.kernel.org/pub/linux/utils/raid/
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+   https://www.kernel.org/pub/linux/utils/raid/
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 You can boot with your md device with the following kernel command
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      The accepted values when writing to this file are ``ppl`` and ``resync``,
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      used to enable and disable PPL.
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+  uuid
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+     This indicates the UUID of the array in the following format:
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+     xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
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+
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 As component devices are added to an md array, they appear in the ``md``
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 directory as new directories named::
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       The cache mode for raid5. raid5 could include an extra disk for
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       caching. The mode can be "write-throuth" and "write-back". The
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       default is "write-through".
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+
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+  ppl_write_hint
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+      NVMe stream ID to be set for each PPL write request.