From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: linux-integrity@vger.kernel.org
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
Mimi Zohar <zohar@linux.ibm.com>,
Jerry Snitselaar <jsnitsel@redhat.com>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
Sumit Garg <sumit.garg@linaro.org>,
Stefan Berger <stefanb@linux.vnet.ibm.com>,
Jason Gunthorpe <jgg@ziepe.ca>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v3 0/2] tpm: Detach page allocation from tpm_buf
Date: Thu, 3 Oct 2019 21:51:01 +0300 [thread overview]
Message-ID: <20191003185103.26347-1-jarkko.sakkinen@linux.intel.com> (raw)
As has been seen recently, binding the buffer allocation and tpm_buf
together is sometimes far from optimal. The buffer might come from the
caller namely when tpm_send() is used by another subsystem. In addition we
can stability in call sites w/o rollback (e.g. power events)>
Take allocation out of the tpm_buf framework and make it purely a wrapper
for the data buffer.
Link: https://patchwork.kernel.org/patch/11146585/
Cc: Mimi Zohar <zohar@linux.ibm.com>
Cc: Jerry Snitselaar <jsnitsel@redhat.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Cc: Stefan Berger <stefanb@linux.vnet.ibm.com>
Jarkko Sakkinen (2):
tpm: Use GFP_KERNEL for allocating struct tpm_buf
tpm: Detach page allocation from tpm_buf
drivers/char/tpm/tpm-sysfs.c | 19 ++-
drivers/char/tpm/tpm.h | 40 ++---
drivers/char/tpm/tpm1-cmd.c | 114 +++++++++----
drivers/char/tpm/tpm2-cmd.c | 265 +++++++++++++++++++-----------
drivers/char/tpm/tpm2-space.c | 64 +++++---
drivers/char/tpm/tpm_vtpm_proxy.c | 24 +--
6 files changed, 333 insertions(+), 193 deletions(-)
--
2.20.1
next reply other threads:[~2019-10-03 18:51 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 18:51 Jarkko Sakkinen [this message]
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
2019-10-06 23:32 ` Jarkko Sakkinen
2019-10-04 19:01 ` Jarkko Sakkinen
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