linux-kernel - Re: [PATCH 1/5] locking: Introduce range reader/writer lock

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Message-ID: <20170328165803.podjvgo5zim44gip@node.shutemov.name>
Date:   Tue, 28 Mar 2017 19:58:03 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Davidlohr Bueso <dave@...olabs.net>
Cc:     Laurent Dufour <ldufour@...ux.vnet.ibm.com>, mingo@...nel.org,
        peterz@...radead.org, akpm@...ux-foundation.org, jack@...e.cz,
        kirill.shutemov@...ux.intel.com, mhocko@...e.com,
        mgorman@...hsingularity.net, linux-kernel@...r.kernel.org,
        Davidlohr Bueso <dbueso@...e.de>
Subject: Re: [PATCH 1/5] locking: Introduce range reader/writer lock

On Tue, Mar 28, 2017 at 09:39:18AM -0700, Davidlohr Bueso wrote:
> I'll wait to see if there are any more concerns and send a v2 with your corrections.

Have you tried drop-in replacement of mmap_sem with full range lock?
It would be interesting to see performance implication for this.

-- 
 Kirill A. Shutemov