On 11 May 2016, at 15:08, Eric Blake <eblake@...696...> wrote: > Then I think I will propose a doc patch to the extension-info branch > that adds new INFO items for NBD_INFO_TRIM_SIZE and > NBD_INFO_WRITE_ZERO_SIZE (if requested by client and replied by server, > then this can be larger than the normal maximum size in > NBD_INFO_BLOCK_SIZE; if either side doesn't request the info, then > assume any maximum in NBD_INFO_BLOCK_SIZE applies, otherwise UINT32_MAX; > and the two infos are separate items because NBD_FLAG_SEND_TRIM and > NBD_FLAG_SEND_WRITE_ZEROES are orthogonally optional). mmmm ... at this rate you'd be better with a list of command / maximum size tuples! -- Alex Bligh
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