2020-06-25 04:55:22

by Jarkko Sakkinen

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

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 <[email protected]>
> Suggested-by: Stefan Berger <[email protected]>
> Signed-off-by: Jarkko Sakkinen <[email protected]>

I'd actually consider

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

/JQ4KKO