[PATCH] nvmet-tcp: get rid of a high-order allocation

[Sagi Grimberg]

On 26/08/2024 15:03, Sagi Grimberg wrote:
> Allocating the queue commands array leads to a high order
> allocation.
>
> The current size of nvmet_tcp_cmd is 704 bytes. Allocating
> 128 of those (default queue depth) means that we are allocating
> an array of 90K bytes. There is no reason why this will be
> a single contiguous allocation. Change the allocation to be
> kvcalloc instead.
>
> Signed-off-by: Sagi Grimberg <sagi at grimberg.me>
> ---
> Hannes, I did not test tls (I wish there were blktests for it)
> Can you please double check that nothing breaks? Given that now
> cmd->recv_cbuf is coming from a virtually contiguous allocation
> (which shouldn't be a problem as far as I can tell...)

Hannes, can you assist here please?