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From: Will Deacon <will@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Will Deacon <will@kernel.org>, Kees Cook <keescook@chromium.org>,
	Ingo Molnar <mingo@kernel.org>,
	Elena Reshetova <elena.reshetova@intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Hanjun Guo <guohanjun@huawei.com>,
	Jan Glauber <jglauber@marvell.com>
Subject: [PATCH v3 00/10] Rework REFCOUNT_FULL using atomic_fetch_* operations
Date: Mon,  7 Oct 2019 16:46:53 +0100	[thread overview]
Message-ID: <20191007154703.5574-1-will@kernel.org> (raw)

Hi all,

This is version three of the patches I previously posted here:

  v1: https://lkml.kernel.org/r/20190802101000.12958-1-will@kernel.org
  v2: https://lkml.kernel.org/r/20190827163204.29903-1-will@kernel.org

Changes since v2 include:

  - Remove the x86 assembly version and enable this code unconditionally
  - Move saturation warnings out-of-line to reduce image bloat

Cheers,

Will

Cc: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Elena Reshetova <elena.reshetova@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Jan Glauber <jglauber@marvell.com>

--->8

Will Deacon (10):
  lib/refcount: Define constants for saturation and max refcount values
  lib/refcount: Ensure integer operands are treated as signed
  lib/refcount: Remove unused refcount_*_checked() variants
  lib/refcount: Move bulk of REFCOUNT_FULL implementation into header
  lib/refcount: Improve performance of generic REFCOUNT_FULL code
  lib/refcount: Move saturation warnings out of line
  lib/refcount: Consolidate REFCOUNT_{MAX,SATURATED} definitions
  refcount: Consolidate implementations of refcount_t
  lib/refcount: Remove unused 'refcount_error_report()' function
  drivers/lkdtm: Remove references to CONFIG_REFCOUNT_FULL

 arch/Kconfig                       |  21 ---
 arch/arm/Kconfig                   |   1 -
 arch/arm64/Kconfig                 |   1 -
 arch/s390/configs/debug_defconfig  |   1 -
 arch/x86/Kconfig                   |   1 -
 arch/x86/include/asm/asm.h         |   6 -
 arch/x86/include/asm/refcount.h    | 126 --------------
 arch/x86/mm/extable.c              |  49 ------
 drivers/gpu/drm/i915/Kconfig.debug |   1 -
 drivers/misc/lkdtm/refcount.c      |  11 +-
 include/linux/kernel.h             |   7 -
 include/linux/refcount.h           | 231 +++++++++++++++++++++-----
 kernel/panic.c                     |  11 --
 lib/refcount.c                     | 255 +++--------------------------
 14 files changed, 219 insertions(+), 503 deletions(-)
 delete mode 100644 arch/x86/include/asm/refcount.h

-- 
2.23.0.581.g78d2f28ef7-goog


             reply	other threads:[~2019-10-07 15:47 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-07 15:46 Will Deacon [this message]
2019-10-07 15:46 ` [PATCH v3 01/10] lib/refcount: Define constants for saturation and max refcount values Will Deacon
2019-10-07 15:46 ` [PATCH v3 02/10] lib/refcount: Ensure integer operands are treated as signed Will Deacon
2019-10-07 15:46 ` [PATCH v3 03/10] lib/refcount: Remove unused refcount_*_checked() variants Will Deacon
2019-10-07 15:46 ` [PATCH v3 04/10] lib/refcount: Move bulk of REFCOUNT_FULL implementation into header Will Deacon
2019-10-07 15:46 ` [PATCH v3 05/10] lib/refcount: Improve performance of generic REFCOUNT_FULL code Will Deacon
2019-10-09  9:25   ` Peter Zijlstra
2019-10-09 11:35     ` Peter Zijlstra
2019-10-09 16:44     ` Will Deacon
2019-10-09 17:41       ` Peter Zijlstra
2019-10-07 15:46 ` [PATCH v3 06/10] lib/refcount: Move saturation warnings out of line Will Deacon
2019-10-10 20:48   ` Kees Cook
2019-10-11 12:09     ` Will Deacon
2019-10-07 15:47 ` [PATCH v3 07/10] lib/refcount: Consolidate REFCOUNT_{MAX,SATURATED} definitions Will Deacon
2019-10-07 15:47 ` [PATCH v3 08/10] refcount: Consolidate implementations of refcount_t Will Deacon
2019-10-10 20:49   ` Kees Cook
2019-10-07 15:47 ` [PATCH v3 09/10] lib/refcount: Remove unused 'refcount_error_report()' function Will Deacon
2019-10-10 20:50   ` Kees Cook
2019-10-11 12:12     ` Will Deacon
2019-10-07 15:47 ` [PATCH v3 10/10] drivers/lkdtm: Remove references to CONFIG_REFCOUNT_FULL Will Deacon
2019-10-10 20:50   ` Kees Cook
2019-10-09 10:01 ` [PATCH v3 00/10] Rework REFCOUNT_FULL using atomic_fetch_* operations Hanjun Guo

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