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Message-Id: <20191003185103.26347-1-jarkko.sakkinen@linux.intel.com>
Date: Thu, 3 Oct 2019 21:51:01 +0300
From: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To: linux-integrity@...r.kernel.org
Cc: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
Mimi Zohar <zohar@...ux.ibm.com>,
Jerry Snitselaar <jsnitsel@...hat.com>,
James Bottomley <James.Bottomley@...senPartnership.com>,
Sumit Garg <sumit.garg@...aro.org>,
Stefan Berger <stefanb@...ux.vnet.ibm.com>,
Jason Gunthorpe <jgg@...pe.ca>,
linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v3 0/2] tpm: Detach page allocation from tpm_buf
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@...ux.ibm.com>
Cc: Jerry Snitselaar <jsnitsel@...hat.com>
Cc: James Bottomley <James.Bottomley@...senPartnership.com>
Cc: Sumit Garg <sumit.garg@...aro.org>
Cc: Stefan Berger <stefanb@...ux.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
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