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Message-ID: <e0e2ad99-e7bc-5670-c2a0-b6bdf4c67eba@arm.com>
Date:   Wed, 13 Dec 2023 18:05:16 +0000
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Subject: Re: [PATCH v7 09/24] x86/resctrl: Use __set_bit()/__clear_bit()
 instead of open coding
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To:     babu.moger@amd.com, x86@kernel.org, linux-kernel@vger.kernel.org
Cc:     Fenghua Yu <fenghua.yu@intel.com>,
        Reinette Chatre <reinette.chatre@intel.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        H Peter Anvin <hpa@zytor.com>,
        shameerali.kolothum.thodi@huawei.com,
        D Scott Phillips OS <scott@os.amperecomputing.com>,
        carl@os.amperecomputing.com, lcherian@marvell.com,
        bobo.shaobowang@huawei.com, tan.shaopeng@fujitsu.com,
        baolin.wang@linux.alibaba.com, Jamie Iles <quic_jiles@quicinc.com>,
        Xin Hao <xhao@linux.alibaba.com>, peternewman@google.com,
        dfustini@baylibre.com, amitsinght@marvell.com
References: <20231025180345.28061-1-james.morse@arm.com>
 <20231025180345.28061-10-james.morse@arm.com>
 <c87a34c6-7163-4025-9f5a-4b9225701b66@amd.com>
From:   James Morse <james.morse@arm.com>
In-Reply-To: <c87a34c6-7163-4025-9f5a-4b9225701b66@amd.com>
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Hi Babu,

On 09/11/2023 20:38, Moger, Babu wrote:
> On 10/25/23 13:03, James Morse wrote:
>> The resctrl CLOSID allocator uses a single 32bit word to track which
>> CLOSID are free. The setting and clearing of bits is open coded.
>>
>> A subsequent patch adds closid_allocated(), which adds more open
>> coded bitmaps operations. These will eventually need changing to use
>> the bitops helpers so that a CLOSID bitmap of the correct size can be
>> allocated dynamically.
>>
>> Convert the existing open coded bit manipulations of closid_free_map
>> to use __set_bit() and friends. These don't need to be atomic as this
>> list is protected by the mutex.

> Reviewed-by: Babu Moger <babu.moger@amd.com>


Thanks!

James