Re: [PATCH] tpm: tpm2-space: Resize session and context buffers dynamically

[Jarkko Sakkinen]

On Thu, Jun 25, 2020 at 07:24:20AM +0300, Jarkko Sakkinen wrote:
> Re-allocate context and session buffers when needed. Scale them in page
> increments so that the reallocation is only seldomly required, and thus
> causes minimal stress to the system. Add a static maximum limit of four
> pages for buffer sizes.
> 
> Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
> Suggested-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>

I'd actually consider

#define TPM2_SPACE_DEFAULT_BUFFER_SIZE	PAGE_SIZE
#define TPM2_SPACE_MAX_BUFFER_SIZE	(4 * PAGE_SIZE)

/JQ4KKO