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SUNRPC for TCP display xprt's source port in sysfs xprt_info 

Using TCP connection's source port it is useful to match connections
seen on the network traces to the xprts used by the linux nfs client.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Olga Kornievskaia 2021-06-23 23:28:49 -04:00 committed by Trond Myklebust
parent a8482488a7
commit c1830a63c7
1 changed files with 8 additions and 4 deletions
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12
net/sunrpc/sysfs.c
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@ -5,6 +5,7 @@
#include <linux/sunrpc/clnt.h>
#include <linux/kobject.h>
#include <linux/sunrpc/addr.h>
#include <linux/sunrpc/xprtsock.h>
#include "sysfs.h"
@ -103,10 +104,13 @@ static ssize_t rpc_sysfs_xprt_info_show(struct kobject *kobj,
ret = sprintf(buf, "last_used=%lu\ncur_cong=%lu\ncong_win=%lu\n"
"max_num_slots=%u\nmin_num_slots=%u\nnum_reqs=%u\n"
"binding_q_len=%u\nsending_q_len=%u\npending_q_len=%u\n"
"backlog_q_len=%u\nmain_xprt=%d\n", xprt->last_used,
xprt->cong, xprt->cwnd, xprt->max_reqs, xprt->min_reqs,
xprt->num_reqs, xprt->binding.qlen, xprt->sending.qlen,
xprt->pending.qlen, xprt->backlog.qlen, xprt->main);
"backlog_q_len=%u\nmain_xprt=%d\nsrc_port=%u\n",
xprt->last_used, xprt->cong, xprt->cwnd, xprt->max_reqs,
xprt->min_reqs, xprt->num_reqs, xprt->binding.qlen,
xprt->sending.qlen, xprt->pending.qlen,
xprt->backlog.qlen, xprt->main,
(xprt->xprt_class->ident == XPRT_TRANSPORT_TCP) ?
get_srcport(xprt) : 0);
xprt_put(xprt);
return ret + 1;
}