linux-kernel - Re: [PATCH 09/34] dmaengine: idxd: optimize perfmon_assign

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Message-ID: <ZWCT9sHhtTsx3u+t@matsya>
Date:   Fri, 24 Nov 2023 17:45:50 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Yury Norov <yury.norov@...il.com>
Cc:     linux-kernel@...r.kernel.org, Fenghua Yu <fenghua.yu@...el.com>,
        Dave Jiang <dave.jiang@...el.com>, dmaengine@...r.kernel.org,
        Jan Kara <jack@...e.cz>,
        Mirsad Todorovac <mirsad.todorovac@....unizg.hr>,
        Matthew Wilcox <willy@...radead.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Maxim Kuvyrkov <maxim.kuvyrkov@...aro.org>,
        Alexey Klimov <klimov.linux@...il.com>
Subject: Re: [PATCH 09/34] dmaengine: idxd: optimize perfmon_assign_event()

On 18-11-23, 07:50, Yury Norov wrote:
> The function searches used_mask for a set bit in a for-loop bit by bit.
> We can do it faster by using atomic find_and_set_bit().

Acked-by: Vinod Koul <vkoul@...nel.org>

-- 
~Vinod