Re: [PATCH, RFC] xfs: batched discard support

[Mark Lord]

[resending, after fixing the Cc: list; somebody trimmed it earlier]

Jamie Lokier wrote:
..
> I don't remember - does TRIM guarantee the blocks read zeros afterwards?
..

No, it doesn't.

A drive can optionally support "deterministic TRIM", whereby it will return
consistent data for any given trimmed sector afterwards, but that doesn't mean zeros.

-ml
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