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From: Borislav Petkov <bp@alien8.de>
To: Shuah Khan <skhan@linuxfoundation.org>
Cc: mchehab@kernel.org, tony.luck@intel.com, james.morse@arm.com,
	rric@kernel.org, gregkh@linuxfoundation.org,
	keescook@chromium.org, linux-edac@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 11/11] drivers/edac: convert pci counters to counter_atomic32
Date: Mon, 28 Sep 2020 14:05:00 +0200	[thread overview]
Message-ID: <20200928120500.GA8151@zn.tnic> (raw)
In-Reply-To: <f69320551ff9526b648dd587d15f433c84c13ca3.1601073127.git.skhan@linuxfoundation.org>

On Fri, Sep 25, 2020 at 05:47:25PM -0600, Shuah Khan wrote:
> counter_atomic* is introduced to be used when a variable is used as
> a simple counter and doesn't guard object lifetimes. This clearly
> differentiates atomic_t usages that guard object lifetimes.
> 
> counter_atomic* variables will wrap around to 0 when it overflows and
> should not be used to guard resource lifetimes, device usage and
> open counts that control state changes, and pm states.
> 
> atomic_t variables used for pci counters keep track of pci parity and
> non-parity errors. Convert them to use counter_atomic32.
> 
> Overflow will wrap around and reset the counts as was the case prior to
> the conversion.
> 
> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
> ---
>  drivers/edac/edac_pci.h       |  5 +++--
>  drivers/edac/edac_pci_sysfs.c | 28 ++++++++++++++--------------
>  2 files changed, 17 insertions(+), 16 deletions(-)

The patches I was Cced - this one and the apei one, look ok to me.

Acked-by: Borislav Petkov <bp@suse.de>

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

  reply	other threads:[~2020-09-28 12:05 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-25 23:47 [PATCH 00/11] Introduce Simple atomic and non-atomic counters Shuah Khan
2020-09-25 23:47 ` Shuah Khan
2020-09-25 23:47 ` [PATCH 01/11] counters: Introduce counter_simple* and counter_atomic* counters Shuah Khan
2020-09-25 23:47 ` [PATCH 02/11] selftests:lib:test_counters: add new test for counters Shuah Khan
2020-09-25 23:47 ` [PATCH 03/11] drivers/base: convert deferred_trigger_count and probe_count to counter_atomic32 Shuah Khan
2020-09-25 23:47 ` [PATCH 04/11] drivers/base/devcoredump: convert devcd_count " Shuah Khan
2020-09-25 23:47 ` [PATCH 05/11] drivers/acpi: convert seqno counter_atomic32 Shuah Khan
2020-09-25 23:47 ` [PATCH 06/11] drivers/acpi/apei: " Shuah Khan
2020-09-25 23:47 ` [PATCH 07/11] drivers/android/binder: convert stats, transaction_log to counter_atomic32 Shuah Khan
2020-09-25 23:47   ` Shuah Khan
2020-09-27 23:39   ` Joel Fernandes
2020-09-27 23:39     ` Joel Fernandes
2020-09-25 23:47 ` [PATCH 08/11] drivers/base/test/test_async_driver_probe: convert to use counter_atomic32 Shuah Khan
2020-09-25 23:47 ` [PATCH 09/11] drivers/char/ipmi: convert stats " Shuah Khan
2020-09-26  0:15   ` Corey Minyard
2020-09-26  2:05     ` Shuah Khan
2020-09-25 23:47 ` [PATCH 10/11] drivers/misc/vmw_vmci: convert num guest devices counter to counter_atomic32 Shuah Khan
2020-09-25 23:47 ` [PATCH 11/11] drivers/edac: convert pci counters " Shuah Khan
2020-09-28 12:05   ` Borislav Petkov [this message]
2020-09-25 23:52 ` [PATCH 00/11] Introduce Simple atomic and non-atomic counters Kees Cook
2020-09-25 23:52   ` Kees Cook
2020-09-26  0:13   ` Shuah Khan
2020-09-26  0:13     ` Shuah Khan
2020-09-26 16:33     ` Kees Cook
2020-09-26 16:33       ` Kees Cook
2020-09-28 22:52       ` Shuah Khan
2020-09-28 22:52         ` Shuah Khan
2020-09-26 16:22 ` Kees Cook
2020-09-26 16:22   ` Kees Cook
2020-09-28 22:42   ` Shuah Khan
2020-09-28 22:42     ` Shuah Khan
2020-09-26 16:29 ` Kees Cook
2020-09-26 16:29   ` Kees Cook
2020-09-28 22:41   ` Shuah Khan
2020-09-28 22:41     ` Shuah Khan
2020-09-28 23:13     ` Kees Cook
2020-09-28 23:13       ` Kees Cook
2020-10-06 15:21       ` Shuah Khan
2020-10-06 15:21         ` Shuah Khan
2020-09-27 23:35 ` Joel Fernandes
2020-09-27 23:35   ` Joel Fernandes
2020-09-28 20:34   ` Kees Cook
2020-09-28 20:34     ` Kees Cook
2020-09-28 21:17     ` Joel Fernandes
2020-09-28 21:17       ` Joel Fernandes
2020-09-28 23:01       ` Shuah Khan
2020-09-28 23:01         ` Shuah Khan

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