Messages in this thread | | | Subject | Re: [PATCH 10/21] block: Add fops atomic write support | From | "Martin K. Petersen" <> | Date | Mon, 02 Oct 2023 20:48:06 -0400 |
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Bart,
> Are there any SCSI devices that we care about that report an ATOMIC > TRANSFER LENGTH GRANULARITY that is larger than a single logical > block?
Yes.
Note that code path used inside a storage device to guarantee atomicity of an entire I/O may be substantially different from the code path which only offers an incremental guarantee at a single logical or physical block level (to the extent that those guarantees are offered at all but that's a different kettle of fish).
> I'm wondering whether we really have to support such devices.
Yes.
-- Martin K. Petersen Oracle Linux Engineering
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