linux-kernel - [GIT PULL] Please pull IOMMUFD subsystem changes

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Message-ID: <ZMPHGPLDXK46QF+K@nvidia.com>
Date:   Fri, 28 Jul 2023 10:48:08 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     iommu@...ts.linux.dev, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Kevin Tian <kevin.tian@...el.com>
Subject: [GIT PULL] Please pull IOMMUFD subsystem changes

Hi Linus,

Small rc update for some recently found bugs

Thanks,
Jason

The following changes since commit 6eaae198076080886b9e7d57f4ae06fa782f90ef:

  Linux 6.5-rc3 (2023-07-23 15:24:10 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd.git tags/for-linus-iommufd

for you to fetch changes up to b7c822fa6b7701b17e139f1c562fc24135880ed4:

  iommufd: Set end correctly when doing batch carry (2023-07-27 11:27:20 -0300)

----------------------------------------------------------------
iommufd for 6.5 rc

Two user triggerable problems:

- Syzkaller found a way to trigger a WARN_ON and leak memory by racing
  destroy with other actions

- There is still a bug in the "batch carry" stuff that gets invoked for
  complex cases with accesses and unmapping of huge pages. The test suite
  found this (triggers rarely)

----------------------------------------------------------------
Jason Gunthorpe (2):
      iommufd: IOMMUFD_DESTROY should not increase the refcount
      iommufd: Set end correctly when doing batch carry

 drivers/iommu/iommufd/device.c          | 12 ++---
 drivers/iommu/iommufd/iommufd_private.h | 15 ++++++-
 drivers/iommu/iommufd/main.c            | 78 +++++++++++++++++++++++++--------
 drivers/iommu/iommufd/pages.c           |  2 +-
 4 files changed, 76 insertions(+), 31 deletions(-)

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