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sunrpc: display xprt's queuelen of assigned tasks via sysfs 

Once a task grabs a trasnport it's reflected in the queuelen of
the rpc_xprt structure. Add display of that value in the xprt's
info file in sysfs.

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 23:28:52 -04:00 committed by Trond Myklebust
parent 85e39feead
commit 6a2840590b
1 changed files with 4 additions and 2 deletions
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6
net/sunrpc/sysfs.c
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@ -113,13 +113,15 @@ 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\nsrc_port=%u\n",
"backlog_q_len=%u\nmain_xprt=%d\nsrc_port=%u\n"
"tasks_queuelen=%ld\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);
get_srcport(xprt) : 0,
atomic_long_read(&xprt->queuelen));
xprt_put(xprt);
return ret + 1;
}