NFSv4.1: Retry pNFS after a 2 minute timeout
If we had to fall back to read/write through MDS, then assume that we should
retry pNFS after a suitable timeout period.
The following patch sets a timeout of 2 minutes.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index e3eb7d1..bc8e500 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -140,6 +140,7 @@
atomic_t plh_outstanding; /* number of RPCs out */
unsigned long plh_block_lgets; /* block LAYOUTGET if >0 */
u32 plh_barrier; /* ignore lower seqids */
+ unsigned long plh_retry_timestamp;
unsigned long plh_flags;
loff_t plh_lwb; /* last write byte for layoutcommit */
struct rpc_cred *plh_lc_cred; /* layoutcommit cred */