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[PATCH v2 0/3] ACPICA: Interpreter: Fix regressions in lock order improvement

From Lv Zheng <zetalog@gmail.com>
Newsgroups linux.kernel
Subject [PATCH v2 0/3] ACPICA: Interpreter: Fix regressions in lock order improvement
Date 2016-10-26 09:50 +0200
Message-ID <swr8d-wK-9@gated-at.bofh.it> (permalink)
References <sw2tb-1hl-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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This patchset fixes regressions in ACPICA intepreter lock order
improvement.

Patches tested with customized ACPI table where _PS0/_PS3 methods are
customized to invoke a serialized control method which creates named
objects. When pm_async=yes, AE_ALREADY_EXISTS can be seen in suspend/resume
process. This is an existing issue, triggered in 4.9-rc1 by ACPICA
interpreter lock order fixes, and can be fixed by [PATCH 1] in this series.

v2:
1. Remove non-regression-fixes.
2. Add "Fixes" tags.

Lv Zheng (3):
  ACPICA: Dispatcher: Fix order issue of method termination
  ACPICA: Dispatcher: Fix an unbalanced lock exit path in
    acpi_ds_auto_serialize_method()
  ACPICA: Dispatcher: Tune interpreter lock around
    acpi_ev_initialize_region()

 drivers/acpi/acpica/dsinit.c   | 11 +++-------
 drivers/acpi/acpica/dsmethod.c | 50 +++++++++++++++++++-----------------------
 drivers/acpi/acpica/dswload2.c |  2 --
 drivers/acpi/acpica/evrgnini.c |  3 +++
 drivers/acpi/acpica/nsload.c   |  2 ++
 5 files changed, 30 insertions(+), 38 deletions(-)

-- 
2.7.4

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Thread

[PATCH 0/6] ACPICA: Interpreter: Improve lock order fixes Lv Zheng <zetalog@gmail.com> - 2016-10-25 07:30 +0200
  [PATCH 2/6] ACPICA: Dispatcher: Fix an unbalanced lock exit path in acpi_ds_auto_serialize_method() Lv Zheng <zetalog@gmail.com> - 2016-10-25 07:30 +0200
  [PATCH 4/6] ACPICA: Events: Cleanup acpi_ev_initialize_region() Lv Zheng <zetalog@gmail.com> - 2016-10-25 07:30 +0200
  Re: [PATCH 0/6] ACPICA: Interpreter: Improve lock order fixes "Rafael J. Wysocki" <rafael@kernel.org> - 2016-10-26 03:00 +0200
    RE: [PATCH 0/6] ACPICA: Interpreter: Improve lock order fixes "Zheng, Lv" <lv.zheng@intel.com> - 2016-10-26 08:20 +0200
      RE: [PATCH 0/6] ACPICA: Interpreter: Improve lock order fixes "Zheng, Lv" <lv.zheng@intel.com> - 2016-10-26 09:10 +0200
  [PATCH v2 3/3] ACPICA: Dispatcher: Tune interpreter lock around acpi_ev_initialize_region() Lv Zheng <zetalog@gmail.com> - 2016-10-26 09:50 +0200
  [PATCH v2 2/3] ACPICA: Dispatcher: Fix an unbalanced lock exit path in acpi_ds_auto_serialize_method() Lv Zheng <zetalog@gmail.com> - 2016-10-26 09:50 +0200
  [PATCH v2 0/3] ACPICA: Interpreter: Fix regressions in lock order improvement Lv Zheng <zetalog@gmail.com> - 2016-10-26 09:50 +0200
    [PATCH v2 1/3] ACPICA: Dispatcher: Fix order issue of method termination Lv Zheng <zetalog@gmail.com> - 2016-10-26 09:50 +0200

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