Re: [PATCH v3 0/7] Lazy flush for the auth session

From: Pengyu Ma
Date: Wed Sep 18 2024 - 02:48:10 EST


Hi Jarkko,

After applied this patchset, the boot time become 8.9 secondes, it's
more reasonable.

But this patchset can't be clean applied to upstream 6.11 kernel.
looks like file tpm2-sessions.c is changed in your code base.

Tested-by: Pengyu Ma <mapengyu@xxxxxxxxx>

Thanks,
Pengyu

On Tue, Sep 17, 2024 at 11:44 PM Jarkko Sakkinen <jarkko@xxxxxxxxxx> wrote:
>
> For the sake of:
> https://bugzilla.kernel.org/show_bug.cgi?id=219229
>
> v2:
> https://lore.kernel.org/linux-integrity/20240916110714.1396407-1-jarkko@xxxxxxxxxx/
> v1:
> https://lore.kernel.org/linux-integrity/20240915180448.2030115-1-jarkko@xxxxxxxxxx/
>
> Jarkko Sakkinen (7):
> tpm: Remove the top-level documentation tpm2-sessions.c
> tpm: Return on tpm2_create_null_primary() failure
> tpm: Return on tpm2_create_primary() failure in tpm2_load_null()
> tpm: flush the null key only when /dev/tpm0 is accessed
> tpm: Allocate chip->auth in tpm2_start_auth_session()
> tpm: flush the auth session only when /dev/tpm0 is open
> tpm: open code tpm2_create_null_primary()
>
> drivers/char/tpm/tpm-chip.c | 14 +++
> drivers/char/tpm/tpm-dev-common.c | 8 ++
> drivers/char/tpm/tpm-interface.c | 10 +-
> drivers/char/tpm/tpm2-cmd.c | 3 +
> drivers/char/tpm/tpm2-sessions.c | 196 +++++++++++-------------------
> include/linux/tpm.h | 2 +
> 6 files changed, 109 insertions(+), 124 deletions(-)
>
> --
> 2.46.0
>