On 2013-09-26 17:55, J. Bruce Fields wrote:
> On Thu, Sep 26, 2013 at 02:40:02PM -0400, Benny Halevy wrote:
>> From: Benny Halevy <bhalevy@xxxxxxxxxxx>
>>
>> Set the cl_exchange_flags to be non_pnfs if we do not set
>> either pnfs or ds (in the plain old nfs41 case).
>>
>> Note that we always set both MDS and DS exchangeid capability flags
>> when CONFIG_PNFSD is enabled.
>> The client needs to remember what the session is used for
>> if it cares to distiguish between DSs and MDSs.
>>
>> EXCHGID4_FLAG_USE_NON_PNFS should be set when the server does not support
>> operations (e.g. LAYOUTGET) or attributes that pertain to pNFS.
>
> Minor nit: since we don't actually support those operations yet, this
> patch should probably come later in the series.
Right. It was originally placed first to allow testing of early patches.
I'll move it later when the implementation supports getdeviceinfo and layoutget.
Benny
>
> --b.
>
>>
>> [extraced from pnfsd: Initial pNFS server implementation.]
>> Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxx>
>> [pnfsd: Fixup nfsd4_set_ex_flags.]
>> Signed-off-by: Dean Hildebrand <dhildeb@xxxxxxxxxx>
>> [pnfsd: set EXCHGID4_FLAG_USE_NON_PNFS when !CONFIG_PNFSD]
>> [pnfsd: fix compiler warning in nfsd4_set_ex_flags when CONFIG_PNFSD is not defined]
>> [pnfsd: always set both MDS and DS exchangeid capability flags]
>> Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxx>
>> Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxxxxxx>
>> ---
>> fs/nfsd/nfs4state.c | 6 +++++-
>> 1 file changed, 5 insertions(+), 1 deletion(-)
>>
>> diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
>> index 57a0340..21c15fc 100644
>> --- a/fs/nfsd/nfs4state.c
>> +++ b/fs/nfsd/nfs4state.c
>> @@ -1614,8 +1614,12 @@ static bool clp_used_exchangeid(struct nfs4_client *clp)
>> static void
>> nfsd4_set_ex_flags(struct nfs4_client *new, struct nfsd4_exchange_id *clid)
>> {
>> - /* pNFS is not supported */
>> +#if defined(CONFIG_PNFSD)
>> + new->cl_exchange_flags |= EXCHGID4_FLAG_USE_PNFS_MDS |
>> + EXCHGID4_FLAG_USE_PNFS_DS;
>> +#else /* CONFIG_PNFSD */
>> new->cl_exchange_flags |= EXCHGID4_FLAG_USE_NON_PNFS;
>> +#endif /* CONFIG_PNFSD */
>>
>> /* Referrals are supported, Migration is not. */
>> new->cl_exchange_flags |= EXCHGID4_FLAG_SUPP_MOVED_REFER;
>> --
>> 1.8.3.1
>>
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