linux-kernel - Re: [PATCH] fs/nfs/inode.c: adjust code alignment

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Tue, 06 Aug 2013 21:58:15 -0400
From:	Dave Quigley <dpquigl@...equigley.com>
To:	Steve Dickson <SteveD@...hat.com>
CC:	"Myklebust, Trond" <Trond.Myklebust@...app.com>,
	Julia Lawall <Julia.Lawall@...6.fr>,
	"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
	"linux-nfs@...r.kernel.org" <linux-nfs@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] fs/nfs/inode.c: adjust code alignment

On 8/6/2013 2:04 PM, Steve Dickson wrote:
> Hello,
>
> On 05/08/13 10:59, Myklebust, Trond wrote:
>> On Mon, 2013-08-05 at 16:47 +0200, Julia Lawall wrote:
>>> From: Julia Lawall <Julia.Lawall@...6.fr>
>>>
>>> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
>>>
>>> ---
>>>
>>> This patch adjusts the code so that the alignment matches the current
>>> semantics.  I have no idea if it is the intended semantics, though.  Should
>>> the call to nfs_setsecurity also be under the else?
>>>
>>
>>>   fs/nfs/inode.c |    2 +-
>>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
>>> index af6e806..d8ad685 100644
>>> --- a/fs/nfs/inode.c
>>> +++ b/fs/nfs/inode.c
>>> @@ -463,7 +463,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh
>>> *fh, struct nfs_fattr *fattr, st
>>>                  unlock_new_inode(inode);
>>>          } else
>>>                  nfs_refresh_inode(inode, fattr);
>>> -               nfs_setsecurity(inode, fattr, label);
>>> +       nfs_setsecurity(inode, fattr, label);
> This call to nfs_setsecurity() is not needed. The security only needs
> to be set when the i-node is created...
>
> steved.
>
>>>          dprintk("NFS: nfs_fhget(%s/%Ld fh_crc=0x%08x ct=%d)\n",
>>>                  inode->i_sb->s_id,
>>>                  (long long)NFS_FILEID(inode),
>>
>> Hi Julia,
>>
>> Thanks for pointing this out! Given that the 'then' clause of the if
>> statement already calls nfs_setsecurity before unlocking the inode, I
>> suspect that the above _should_ really be part of the 'else' clause.
>>
>> That said, I can't see that calling nfs_setsecurity twice on the inode
>> can cause any unintended side-effects, so I suggest that we rather queue
>> the patch up for inclusion in 3.12.
>> Steve and Dave, any comments?
>>
>

I can't see why it would be needed either. I agree with Steve. We can 
get rid of it.

Dave
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/