linux-kernel - Re: [PATCH v3] NFS: put net on idr allocation failure

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Message-ID: <4FBBA59F.2050001@parallels.com>
Date:	Tue, 22 May 2012 18:41:35 +0400
From:	Stanislav Kinsbursky <skinsbursky@...allels.com>
To:	"Myklebust, Trond" <Trond.Myklebust@...app.com>
CC:	"bfields@...ldses.org" <bfields@...ldses.org>,
	"linux-nfs@...r.kernel.org" <linux-nfs@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...nvz.org" <devel@...nvz.org>
Subject: Re: [PATCH v3] NFS: put net on idr allocation failure

On 22.05.2012 18:37, Myklebust, Trond wrote:
> On Tue, 2012-05-22 at 12:03 +0400, Stanislav Kinsbursky wrote:
>> Signed-off-by: Stanislav Kinsbursky<skinsbursky@...allels.com>
>> ---
>>   fs/nfs/client.c |    4 +++-
>>   1 files changed, 3 insertions(+), 1 deletions(-)
>>
>> diff --git a/fs/nfs/client.c b/fs/nfs/client.c
>> index 44cd70f..ae29d4f 100644
>> --- a/fs/nfs/client.c
>> +++ b/fs/nfs/client.c
>> @@ -176,8 +176,10 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
>>
>>   #ifdef CONFIG_NFS_V4
>>   	err = nfs_get_cb_ident_idr(clp, cl_init->minorversion);
>> -	if (err)
>> +	if (err) {
>> +		put_net(clp->net);
>>   		goto error_cleanup;
>> +	}
>>
>>   	spin_lock_init(&clp->cl_lock);
>>   	INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
>>
>
> Let's just move the actual get_net() call to the end of the function.
>

Ok. But it will look a bit strange, like this:

clp->net = net;
...
nfs_get_cb_ident_idr
...
get_net(clp->net)

Or I can pass net to nfs_get_cb_ident_idr() as a parameter.
Which solution is more preferable&?

-- 
Best regards,
Stanislav Kinsbursky
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