From: Olga Kornievskaia <kolga@xxxxxxxxxx>
In preparation of being able to change the xprt's state, add a way
to show currect state of the transport.
Signed-off-by: Olga Kornievskaia <kolga@xxxxxxxxxx>
---
net/sunrpc/sysfs.c | 47 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)
diff --git a/net/sunrpc/sysfs.c b/net/sunrpc/sysfs.c
index db2ae28bd0c3..887123e0de1a 100644
--- a/net/sunrpc/sysfs.c
+++ b/net/sunrpc/sysfs.c
@@ -112,6 +112,49 @@ static ssize_t rpc_sysfs_xprt_info_show(struct kobject *kobj,
return ret + 1;
}
+static ssize_t rpc_sysfs_xprt_state_show(struct kobject *kobj,
+ struct kobj_attribute *attr,
+ char *buf)
+{
+ struct rpc_xprt *xprt = rpc_sysfs_xprt_kobj_get_xprt(kobj);
+ ssize_t ret;
+ int locked, connected, connecting, close_wait, bound, binding,
+ closing, congested, cwnd_wait, write_space;
+
+ if (!xprt)
+ return 0;
+
+ if (!xprt->state) {
+ ret = sprintf(buf, "state=CLOSED\n");
+ } else {
+ locked = test_bit(XPRT_LOCKED, &xprt->state);
+ connected = test_bit(XPRT_CONNECTED, &xprt->state);
+ connecting = test_bit(XPRT_CONNECTING, &xprt->state);
+ close_wait = test_bit(XPRT_CLOSE_WAIT, &xprt->state);
+ bound = test_bit(XPRT_BOUND, &xprt->state);
+ binding = test_bit(XPRT_BINDING, &xprt->state);
+ closing = test_bit(XPRT_CLOSING, &xprt->state);
+ congested = test_bit(XPRT_CONGESTED, &xprt->state);
+ cwnd_wait = test_bit(XPRT_CWND_WAIT, &xprt->state);
+ write_space = test_bit(XPRT_WRITE_SPACE, &xprt->state);
+
+ ret = sprintf(buf, "state=%s %s %s %s %s %s %s %s %s %s\n",
+ locked ? "LOCKED" : "",
+ connected ? "CONNECTED" : "",
+ connecting ? "CONNECTING" : "",
+ close_wait ? "CLOSE_WAIT" : "",
+ bound ? "BOUND" : "",
+ binding ? "BOUNDING" : "",
+ closing ? "CLOSING" : "",
+ congested ? "CONGESTED" : "",
+ cwnd_wait ? "CWND_WAIT" : "",
+ write_space ? "WRITE_SPACE" : "");
+ }
+
+ xprt_put(xprt);
+ return ret + 1;
+}
+
static ssize_t rpc_sysfs_xprt_switch_info_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *buf)
@@ -250,9 +293,13 @@ static struct kobj_attribute rpc_sysfs_xprt_dstaddr = __ATTR(dstaddr,
static struct kobj_attribute rpc_sysfs_xprt_info = __ATTR(xprt_info,
0444, rpc_sysfs_xprt_info_show, NULL);
+static struct kobj_attribute rpc_sysfs_xprt_change_state = __ATTR(xprt_state,
+ 0644, rpc_sysfs_xprt_state_show, NULL);
+
static struct attribute *rpc_sysfs_xprt_attrs[] = {
&rpc_sysfs_xprt_dstaddr.attr,
&rpc_sysfs_xprt_info.attr,
+ &rpc_sysfs_xprt_change_state.attr,
NULL,
};
--
2.27.0
