Messages in this thread |  | | | Date | Wed, 19 Aug 2009 21:39:34 -0400 | | From | Mark Lord <> | | Subject | Re: [PATCH, RFC] xfs: batched discard support |
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[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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