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.
[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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