linux-kernel - Re: [PATCH 3/6] ksmbd: replace rwlock with rcu for concurrenct access on conn list

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Message-ID: <Y9dDu4WnDbHV/VhH@google.com>
Date:   Mon, 30 Jan 2023 13:12:43 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Dawei Li <set_pte_at@...look.com>
Cc:     linkinjeon@...nel.org, sfrench@...ba.org, senozhatsky@...omium.org,
        tom@...pey.com, hyc.lee@...il.com, linux-cifs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/6] ksmbd: replace rwlock with rcu for concurrenct
 access on conn list

On (23/01/15 18:32), Dawei Li wrote:
> Currently, racing protection on conn list is implemented as rwlock,
> improve it by rcu primitive for its better performance.

Why is this a problem and what proves that this patch improves/solves
it? Numbers/benchmarks/analysis?