From: Jerry Snitselaar <jsnitsel@redhat.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Mimi Zohar <zohar@linux.ibm.com>,
Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
linux-integrity@vger.kernel.org,
Sumit Garg <sumit.garg@linaro.org>,
Stefan Berger <stefanb@linux.vnet.ibm.com>,
Peter Huewe <peterhuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>,
Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 2/2] tpm: Detach page allocation from tpm_buf
Date: Fri, 4 Oct 2019 11:24:34 -0700 [thread overview]
Message-ID: <20191004182434.tjwtfjzvamomybhr@cantor> (raw)
In-Reply-To: <1570210902.3563.19.camel@HansenPartnership.com>
On Fri Oct 04 19, James Bottomley wrote:
>On Fri, 2019-10-04 at 13:37 -0400, Mimi Zohar wrote:
>> On Fri, 2019-10-04 at 09:37 -0700, James Bottomley wrote:
>> > On Thu, 2019-10-03 at 21:51 +0300, Jarkko Sakkinen wrote:
>> > > As has been seen recently, binding the buffer allocation and
>> > > tpm_buf
>> > > together is sometimes far from optimal.
>> >
>> > Can you elaborate on this a bit more? I must have missed the
>> > discussion.
>>
>> Refer to e13cd21ffd50 ("tpm: Wrap the buffer from the caller to
>> tpm_buf in tpm_send()") for the details.
>
>Yes, I get that, but to my mind that calls for moving the
>tpm_init/destroy_buf into the callers of tpm_send (which, for the most
>part, already exist), which means there's no need to separate the buf
>and data lifetimes.
>
>James
>
Sumit has been working on a patchset that does this. His patchset
converts both the asymmetric keys and trusted keys code to using the
tpm_buf manipulation functions.
next prev parent reply other threads:[~2019-10-04 18:24 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 18:51 [PATCH v3 0/2] tpm: Detach page allocation from tpm_buf Jarkko Sakkinen
2019-10-03 18:51 ` [PATCH v3 1/2] tpm: Use GFP_KERNEL for allocating struct tpm_buf Jarkko Sakkinen
2019-10-04 0:25 ` James Bottomley
2019-10-06 10:03 ` Jarkko Sakkinen
2019-10-07 19:12 ` James Bottomley
2019-10-07 23:43 ` Jerry Snitselaar
2019-10-08 22:52 ` Jarkko Sakkinen
2019-10-09 21:36 ` Jarkko Sakkinen
2019-10-11 16:03 ` James Bottomley
2019-10-03 18:51 ` [PATCH v3 2/2] tpm: Detach page allocation from tpm_buf Jarkko Sakkinen
2019-10-04 16:37 ` James Bottomley
2019-10-04 17:37 ` Mimi Zohar
2019-10-04 17:41 ` James Bottomley
2019-10-04 18:24 ` Jerry Snitselaar [this message]
2019-10-06 23:32 ` Jarkko Sakkinen
2019-10-04 19:01 ` Jarkko Sakkinen
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