Rework {read, write}_atomic()

[PATCH for-4.14 0/3] Rework {read, write}_atomic()

Julien Grall posted 3 patches 3 years, 11 months ago

Download series mbox

Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/xen tags/patchew/20200502160700.19573-1-julien@xen.org

Maintainers: Wei Liu <wl@xen.org>, Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>, Julien Grall <julien@xen.org>, Andrew Cooper <andrew.cooper3@citrix.com>, "Roger Pau Monné" <roger.pau@citrix.com>, Stefano Stabellini <sstabellini@kernel.org>, Jan Beulich <jbeulich@suse.com>

xen/include/asm-arm/atomic.h | 77 ++++++++++++++++++++++++++----------
xen/include/asm-x86/atomic.h |  2 +
2 files changed, 59 insertions(+), 20 deletions(-)

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[PATCH for-4.14 0/3] Rework {read, write}_atomic()

Posted by Julien Grall 3 years, 11 months ago

From: Julien Grall <jgrall@amazon.com>

Hi all,

This small series is:
    - Hardening write_atomic() to prevent writing to const pointer
    - Allow {read, write}_atomic() to be used in more cases on Arm.

While this was posted after the last posting date, patch #1 is
necessary to avoid the cast introduced by Juergen in [1]. The rest of
the patches would be good hardening to have in Xen 4.14. So I would like
to request the full series to be included in Xen 4.14.

Cheers,

[1] <20200430152848.20275-1-jgross@suse.com>

CC: paul@xen.org

Julien Grall (3):
  xen/arm: atomic: Allow read_atomic() to be used in more cases
  xen/arm: atomic: Rewrite write_atomic()
  xen/x86: atomic: Don't allow to write atomically in a pointer to const

 xen/include/asm-arm/atomic.h | 77 ++++++++++++++++++++++++++----------
 xen/include/asm-x86/atomic.h |  2 +
 2 files changed, 59 insertions(+), 20 deletions(-)

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2.17.1