[PATCH v3 09/15] block: Add checks to merging of atomic writes

[John Garry]

On 12/02/2024 10:54, Nilay Shroff wrote:
> 
> Shall we ensure here that we don't cross max limit of atomic write supported by
> 
> device? It seems that if the boundary size is not advertized by the device
> 
> (in fact, I have one NVMe drive which has boundary size zero i.e. nabo/nabspf/
> 
> nawupf are all zero but awupf is non-zero) then we (unconditionally) allow
> 
> merging.

BTW, if you don't mind, can you share awupf value and device model? I 
have been on the search for NVMe devices which support atomic writes 
(with non-zero PF reported value). All I have is a M.2 card which has a 
4KB PF atomic write value.

But if this is private info, then ok.

Thanks,
John