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Re: [PATCH v2 03/45] notifier: Add atomic/blocking_notifier_has_unique_priority()
- To: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
- From: Dmitry Osipenko <digetx@xxxxxxxxx>
- Date: Fri, 29 Oct 2021 00:32:37 +0300
- Cc: Thierry Reding <thierry.reding@xxxxxxxxx>, Jonathan Hunter <jonathanh@xxxxxxxxxx>, Lee Jones <lee.jones@xxxxxxxxxx>, "Rafael J . Wysocki" <rafael@xxxxxxxxxx>, Mark Brown <broonie@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Guenter Roeck <linux@xxxxxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxx>, Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>, Ulf Hansson <ulf.hansson@xxxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Guo Ren <guoren@xxxxxxxxxx>, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>, Greg Ungerer <gerg@xxxxxxxxxxxxxx>, Joshua Thompson <funaho@xxxxxxxxx>, Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>, Nick Hu <nickhu@xxxxxxxxxxxxx>, Greentime Hu <green.hu@xxxxxxxxx>, Vincent Chen <deanbo422@xxxxxxxxx>, "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>, Helge Deller <deller@xxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, Paul Mackerras <paulus@xxxxxxxxx>, Paul Walmsley <paul.walmsley@xxxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxxx>, Albert Ou <aou@xxxxxxxxxxxxxxxxx>, Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>, Rich Felker <dalias@xxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, x86@xxxxxxxxxx, "H. Peter Anvin" <hpa@xxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Len Brown <lenb@xxxxxxxxxx>, Santosh Shilimkar <ssantosh@xxxxxxxxxx>, Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>, Linus Walleij <linus.walleij@xxxxxxxxxx>, Chen-Yu Tsai <wens@xxxxxxxx>, Jonathan Neuschäfer <j.neuschaefer@xxxxxxx>, Tony Lindgren <tony@xxxxxxxxxxx>, Liam Girdwood <lgirdwood@xxxxxxxxx>, Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>, Vladimir Zapolskiy <vz@xxxxxxxxx>, Avi Fishman <avifishman70@xxxxxxxxx>, Tomer Maimon <tmaimon77@xxxxxxxxx>, Tali Perry <tali.perry1@xxxxxxxxx>, Patrick Venture <venture@xxxxxxxxxx>, Nancy Yuen <yuenn@xxxxxxxxxx>, Benjamin Fair <benjaminfair@xxxxxxxxxx>, Pavel Machek <pavel@xxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-csky@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, linux-parisc@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-acpi@xxxxxxxxxxxxxxx, linux-omap@xxxxxxxxxxxxxxx, openbmc@xxxxxxxxxxxxxxxx, linux-tegra@xxxxxxxxxxxxxxx, linux-pm@xxxxxxxxxxxxxxx
- Delivery-date: Thu, 28 Oct 2021 21:32:50 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
28.10.2021 14:00, Andy Shevchenko пишет:
> On Thu, Oct 28, 2021 at 12:16:33AM +0300, Dmitry Osipenko wrote:
>> Add atomic/blocking_notifier_has_unique_priority() helpers which return
>> true if given handler has unique priority.
>
> ...
>
>> +/**
>> + * atomic_notifier_has_unique_priority - Checks whether notifier's
>> priority is unique
>> + * @nh: Pointer to head of the atomic notifier chain
>> + * @n: Entry in notifier chain to check
>> + *
>> + * Checks whether there is another notifier in the chain with the same
>> priority.
>> + * Must be called in process context.
>> + *
>> + * Returns true if priority is unique, false otherwise.
>
> Why this indentation?
This is the same doc-comment style used by this file in general. I
haven't tried to invent anything new.
> ...
>
>> + /*
>> + * This code gets used during boot-up, when task switching is
>> + * not yet working and interrupts must remain disabled. At
>
> One space is enough.
This comment is replicated multiple times over this source file. You can
find it before each down_write(). I borrowed the text as-is, for
consistency.
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