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SUNRPC keep track of number of transports to unique addresses 

Currently, xprt_switch keeps a number of all xprts (xps_nxprts)
that were added to the switch regardless of whethere it's an
nconnect transport or a transport to a trunkable address.
Introduce a new counter to keep track of transports to unique
destination addresses per xprt_switch.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Olga Kornievskaia 2021-08-27 14:37:14 -04:00 committed by Anna Schumaker
parent 79d534f8cb
commit 3a3f976639
3 changed files with 3 additions and 1 deletions
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1
include/linux/sunrpc/xprtmultipath.h
View File

@ -18,6 +18,7 @@ struct rpc_xprt_switch {
unsigned int xps_id;
unsigned int xps_nxprts;
unsigned int xps_nactive;
unsigned int xps_nunique_destaddr_xprts;
atomic_long_t xps_queuelen;
struct list_head xps_xprt_list;

2
net/sunrpc/clnt.c
View File

@ -2799,7 +2799,7 @@ int rpc_clnt_test_and_add_xprt(struct rpc_clnt *clnt,
task = rpc_call_null_helper(clnt, xprt, NULL, RPC_TASK_ASYNC,
&rpc_cb_add_xprt_call_ops, data);
data->xps->xps_nunique_destaddr_xprts++;
rpc_put_task(task);
success:
return 1;

1
net/sunrpc/xprtmultipath.c
View File

@ -139,6 +139,7 @@ struct rpc_xprt_switch *xprt_switch_alloc(struct rpc_xprt *xprt,
xps->xps_iter_ops = &rpc_xprt_iter_singular;
rpc_sysfs_xprt_switch_setup(xps, xprt, gfp_flags);
xprt_switch_add_xprt_locked(xps, xprt);
xps->xps_nunique_destaddr_xprts = 1;
rpc_sysfs_xprt_setup(xps, xprt, gfp_flags);
}