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Message-ID: <20170628180704.GA24647@htj.duckdns.org>
Date:   Wed, 28 Jun 2017 14:07:04 -0400
From:   Tejun Heo <tj@...nel.org>
To:     Shaohua Li <shli@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        gregkh@...uxfoundation.org, hch@....de, axboe@...com,
        rostedt@...dmis.org, lizefan@...wei.com, Kernel-team@...com,
        Shaohua Li <shli@...com>
Subject: Re: [PATCH V4 03/12] kernfs: add an API to get kernfs node from
 inode number

On Wed, Jun 28, 2017 at 09:29:53AM -0700, Shaohua Li wrote:
> From: Shaohua Li <shli@...com>
> 
> Add an API to get kernfs node from inode number. We will need this to
> implement exportfs operations.
> 
> This API will be used in blktrace too later, so it should be as fast as
> possible. To make the API lock free, kernfs node is freed in RCU
> context. And we depend on kernfs_node count/ino number to filter out
> stale kernfs nodes.
> 
> Signed-off-by: Shaohua Li <shli@...com>

Acked-by: Tejun Heo <tj@...nel.org>

Thanks.

-- 
tejun

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