linux-kernel - Re: [PATCH] btrfs: remove the useless value assignment in btrfs_defrag

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Message-ID: <9a60330f-ae5e-ba78-ef34-69ab2b7ee0df@gmail.com>
Date:   Tue, 17 Nov 2020 10:53:23 +0800
From:   kaixuxia <xiakaixu1987@...il.com>
To:     dsterba@...e.cz, clm@...com, josef@...icpanda.com,
        dsterba@...e.com, linux-btrfs@...r.kernel.org,
        linux-kernel@...r.kernel.org, Kaixu Xia <kaixuxia@...cent.com>
Subject: Re: [PATCH] btrfs: remove the useless value assignment in
 btrfs_defrag_file



On 2020/11/16 23:13, David Sterba wrote:
> On Sat, Nov 14, 2020 at 05:06:21PM +0800, xiakaixu1987@...il.com wrote:
>> From: Kaixu Xia <kaixuxia@...cent.com>
>>
>> The variable ret is overwritten by the following variable defrag_count
>> and this assignment is useless, so remove it.
> 
> This could be actually pointing to a bug, please explain why you think
> it's correct to remove it and not to return EAGAIN.

The right fix should be goto out_ra and return EAGAIN. I will do it
in the next version.

Thanks,
Kaixu
> 

-- 
kaixuxia