Re: [PATCH 5/5] NFS: clear fsinfo before sendign rpc

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On 2010-10-13 14:03, Fred Isaman wrote:
> On Wed, Sep 29, 2010 at 7:10 AM, Benny Halevy <bhalevy@xxxxxxxxxxx> wrote:
>> To initialize all values to zero, in case the server or protocol version
>> do no support particular attributes.
> 
> Sorry for the delayed response, but...
> 
> Zero is not an appropriate default for many of the values.  Further,
> decode_fsinfo sets a default for each value, even in cases where the
> server or protocol version do not support particular attributes.  So
> this patch seems to server no purpose.

Note that nfs_probe_fsinfo is called also for nfs version 2 and 3
and these don't know anything about nfsv4.1 attributes so they can't
cannot explicitly set them to any default value.

Benny


> 
> Fred
> 
>>
>> Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxx>
>> ---
>>  fs/nfs/client.c |    1 +
>>  1 files changed, 1 insertions(+), 0 deletions(-)
>>
>> diff --git a/fs/nfs/client.c b/fs/nfs/client.c
>> index 23d740c..beb206e 100644
>> --- a/fs/nfs/client.c
>> +++ b/fs/nfs/client.c
>> @@ -942,6 +942,7 @@ static int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *mntfh, str
>>                        goto out_error;
>>        }
>>
>> +       memset(&fsinfo, 0, sizeof(fsinfo));
>>        fsinfo.fattr = fattr;
>>        error = clp->rpc_ops->fsinfo(server, mntfh, &fsinfo);
>>        if (error < 0)
>> --
>> 1.7.2.3
>>
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