linux-kernel - Re: [RFC v2 02/10] mm: Remove nest locking operation with mmap

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Message-ID: <20170531155839.GB28615@linux-80c1.suse>
Date:   Wed, 31 May 2017 08:58:39 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     Laurent Dufour <ldufour@...ux.vnet.ibm.com>
Cc:     linux-mm@...ck.org, akpm@...ux-foundation.org,
        Jan Kara <jack@...e.cz>,
        "Kirill A . Shutemov" <kirill@...temov.name>,
        Michal Hocko <mhocko@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Andi Kleen <andi@...stfloor.org>, haren@...ux.vnet.ibm.com,
        aneesh.kumar@...ux.vnet.ibm.com, khandual@...ux.vnet.ibm.com,
        paulmck@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org
Subject: Re: [RFC v2 02/10] mm: Remove nest locking operation with mmap_sem

On Wed, 24 May 2017, Laurent Dufour wrote:

>The range locking framework doesn't yet provide nest locking
>operation.
>
>Once the range locking API while provide nested operation support,
>this patch will have to be reviewed.

Please note that we already have range_write_lock_nest_lock().

Thanks,
Davidlohr