[PATCH v1 2/4] xprtrdma: mrs_create off-by-one

[Chuck Lever <chuck.lever@xxxxxxxxxx>]

With certain combinations of krb5i/p and MR size, one extra
segment is needed per RPC.

Fixes: c421ece68f6 ("xprtrdma: Create more MRs at a time")
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
 net/sunrpc/xprtrdma/frwr_ops.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index fc6378cc..448e063 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -242,7 +242,7 @@
 
 	ia->ri_max_segs = max_t(unsigned int, 1, RPCRDMA_MAX_DATA_SEGS /
 				ia->ri_max_frwr_depth);
-	ia->ri_max_segs += 2;	/* segments for head and tail buffers */
+	ia->ri_max_segs += 3;	/* segments for head and tail buffers */
 	return 0;
 }