linux-kernel - Re: [PATCH] xfs: destroy mutex qi_tree_lock before free xfs_quotainfo

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Message-ID: <CAEVVKH8koEUA6CWA0DuPMqmuQ3+MNY+9ZE1Cm2UU2KJ1PabK5w@mail.gmail.com>
Date:   Wed, 3 Jan 2018 06:29:34 +0800
From:   Xiongwei Song <sxwjean@...il.com>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>
Cc:     linux-xfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] xfs: destroy mutex qi_tree_lock before free
 xfs_quotainfo_t object

2018-01-03 4:38 GMT+08:00 Darrick J. Wong <darrick.wong@...cle.com>:
> On Sun, Dec 24, 2017 at 08:34:47PM +0800, Xiongwei Song wrote:
>> The mutex qi_tree_lock of xfs_quotainfo_t object was initialized when
>> calling xfs_qm_init_quotainfo, but it was not destroyed before free
>> xfs_quotainfo_t object when calling xfs_qm_destroy_quotainfo, this was
>> incorrect, so destroy it in function xfs_qm_destroy_quotainfo.
>
> Already in for-next, but thank you for catching this.
>
> https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=2196881566225f3c3428d1a5f847a992944daa5b


Apologies for the noise.


Yours sincerely,
Xiongwei


> --D
>
>> Signed-off-by: Xiongwei Song <sxwjean@...il.com>
>> ---
>>  fs/xfs/xfs_qm.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
>> index ec952dfad359..deceef5cbbf3 100644
>> --- a/fs/xfs/xfs_qm.c
>> +++ b/fs/xfs/xfs_qm.c
>> @@ -737,6 +737,7 @@ xfs_qm_destroy_quotainfo(
>>               qi->qi_pquotaip = NULL;
>>       }
>>       mutex_destroy(&qi->qi_quotaofflock);
>> +     mutex_destroy(&qi->qi_tree_lock);
>>       kmem_free(qi);
>>       mp->m_quotainfo = NULL;
>>  }
>> --
>> 2.15.1
>>
>> --
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