linux-kernel - Re: [PATCH v1 4/4] ACPI: OSL: Use GFP

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Message-ID: <ZWdGP3wH1uvESpfe@smile.fi.intel.com>
Date:   Wed, 29 Nov 2023 16:10:07 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     Linux ACPI <linux-acpi@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Michal Wilczynski <michal.wilczynski@...el.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Mario Limonciello <mario.limonciello@....com>
Subject: Re: [PATCH v1 4/4] ACPI: OSL: Use GFP_KERNEL for work item
 allocations

On Wed, Nov 29, 2023 at 02:52:22PM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> After the recent modification changing the ACPI SCI interrupt handler
> into a threaded one, the SCI interrupt handler code does not run in
> interrupt context any more and acpi_os_execute(), that may be invoked
> by it, need not use GFP_ATOMIC for allocating work items.
> 
> Make it use GFP_KERNEL instead.

True, threader IRQ handler can sleep.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

-- 
With Best Regards,
Andy Shevchenko