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Merge tag 'nfsd-4.8' of git://linux-nfs.org/~bfields/linux

Browse Source 
Pull nfsd updates from Bruce Fields:
 "Highlights:

   - Trond made a change to the server's tcp logic that allows a fast
     client to better take advantage of high bandwidth networks, but may
     increase the risk that a single client could starve other clients;
     a new sunrpc.svc_rpc_per_connection_limit parameter should help
     mitigate this in the (hopefully unlikely) event this becomes a
     problem in practice.

   - Tom Haynes added a minimal flex-layout pnfs server, which is of no
     use in production for now--don't build it unless you're doing
     client testing or further server development"

* tag 'nfsd-4.8' of git://linux-nfs.org/~bfields/linux: (32 commits)
  nfsd: remove some dead code in nfsd_create_locked()
  nfsd: drop unnecessary MAY_EXEC check from create
  nfsd: clean up bad-type check in nfsd_create_locked
  nfsd: remove unnecessary positive-dentry check
  nfsd: reorganize nfsd_create
  nfsd: check d_can_lookup in fh_verify of directories
  nfsd: remove redundant zero-length check from create
  nfsd: Make creates return EEXIST instead of EACCES
  SUNRPC: Detect immediate closure of accepted sockets
  SUNRPC: accept() may return sockets that are still in SYN_RECV
  nfsd: allow nfsd to advertise multiple layout types
  nfsd: Close race between nfsd4_release_lockowner and nfsd4_lock
  nfsd/blocklayout: Make sure calculate signature/designator length aligned
  xfs: abstract block export operations from nfsd layouts
  SUNRPC: Remove unused callback xpo_adjust_wspace()
  SUNRPC: Change TCP socket space reservation
  SUNRPC: Add a server side per-connection limit
  SUNRPC: Micro optimisation for svc_data_ready
  SUNRPC: Call the default socket callbacks instead of open coding
  SUNRPC: lock the socket while detaching it
  ...
This commit is contained in:
Linus Torvalds
2016-08-04 19:59:06 -04:00
parent d58b0d980f 2b11885921
commit a71e36045e
37 changed files with 784 additions and 335 deletions
Download Patch File Download Diff File Expand all files Collapse all files

118
include/trace/events/sunrpc.h
View File

@@ -473,6 +473,39 @@ TRACE_EVENT(svc_recv,
show_rqstp_flags(__entry->flags))
);
DECLARE_EVENT_CLASS(svc_rqst_event,
TP_PROTO(struct svc_rqst *rqst),
TP_ARGS(rqst),
TP_STRUCT__entry(
__field(__be32, xid)
__field(unsigned long, flags)
__dynamic_array(unsigned char, addr, rqst->rq_addrlen)
),
TP_fast_assign(
__entry->xid = rqst->rq_xid;
__entry->flags = rqst->rq_flags;
memcpy(__get_dynamic_array(addr),
&rqst->rq_addr, rqst->rq_addrlen);
),
TP_printk("addr=%pIScp rq_xid=0x%x flags=%s",
(struct sockaddr *)__get_dynamic_array(addr),
be32_to_cpu(__entry->xid),
show_rqstp_flags(__entry->flags))
);
DEFINE_EVENT(svc_rqst_event, svc_defer,
TP_PROTO(struct svc_rqst *rqst),
TP_ARGS(rqst));
DEFINE_EVENT(svc_rqst_event, svc_drop,
TP_PROTO(struct svc_rqst *rqst),
TP_ARGS(rqst));
DECLARE_EVENT_CLASS(svc_rqst_status,
TP_PROTO(struct svc_rqst *rqst, int status),
@@ -529,45 +562,67 @@ TRACE_EVENT(svc_xprt_do_enqueue,
TP_STRUCT__entry(
__field(struct svc_xprt *, xprt)
__field_struct(struct sockaddr_storage, ss)
__field(int, pid)
__field(unsigned long, flags)
__dynamic_array(unsigned char, addr, xprt != NULL ?
xprt->xpt_remotelen : 0)
),
TP_fast_assign(
__entry->xprt = xprt;
xprt ? memcpy(&__entry->ss, &xprt->xpt_remote, sizeof(__entry->ss)) : memset(&__entry->ss, 0, sizeof(__entry->ss));
__entry->pid = rqst? rqst->rq_task->pid : 0;
__entry->flags = xprt ? xprt->xpt_flags : 0;
if (xprt) {
memcpy(__get_dynamic_array(addr),
&xprt->xpt_remote,
xprt->xpt_remotelen);
__entry->flags = xprt->xpt_flags;
} else
__entry->flags = 0;
),
TP_printk("xprt=0x%p addr=%pIScp pid=%d flags=%s", __entry->xprt,
(struct sockaddr *)&__entry->ss,
__get_dynamic_array_len(addr) != 0 ?
(struct sockaddr *)__get_dynamic_array(addr) : NULL,
__entry->pid, show_svc_xprt_flags(__entry->flags))
);
TRACE_EVENT(svc_xprt_dequeue,
DECLARE_EVENT_CLASS(svc_xprt_event,
TP_PROTO(struct svc_xprt *xprt),
TP_ARGS(xprt),
TP_STRUCT__entry(
__field(struct svc_xprt *, xprt)
__field_struct(struct sockaddr_storage, ss)
__field(unsigned long, flags)
__dynamic_array(unsigned char, addr, xprt != NULL ?
xprt->xpt_remotelen : 0)
),
TP_fast_assign(
__entry->xprt = xprt,
xprt ? memcpy(&__entry->ss, &xprt->xpt_remote, sizeof(__entry->ss)) : memset(&__entry->ss, 0, sizeof(__entry->ss));
__entry->flags = xprt ? xprt->xpt_flags : 0;
__entry->xprt = xprt;
if (xprt) {
memcpy(__get_dynamic_array(addr),
&xprt->xpt_remote,
xprt->xpt_remotelen);
__entry->flags = xprt->xpt_flags;
} else
__entry->flags = 0;
),
TP_printk("xprt=0x%p addr=%pIScp flags=%s", __entry->xprt,
(struct sockaddr *)&__entry->ss,
__get_dynamic_array_len(addr) != 0 ?
(struct sockaddr *)__get_dynamic_array(addr) : NULL,
show_svc_xprt_flags(__entry->flags))
);
DEFINE_EVENT(svc_xprt_event, svc_xprt_dequeue,
TP_PROTO(struct svc_xprt *xprt),
TP_ARGS(xprt));
DEFINE_EVENT(svc_xprt_event, svc_xprt_no_write_space,
TP_PROTO(struct svc_xprt *xprt),
TP_ARGS(xprt));
TRACE_EVENT(svc_wake_up,
TP_PROTO(int pid),
@@ -592,21 +647,56 @@ TRACE_EVENT(svc_handle_xprt,
TP_STRUCT__entry(
__field(struct svc_xprt *, xprt)
__field(int, len)
__field_struct(struct sockaddr_storage, ss)
__field(unsigned long, flags)
__dynamic_array(unsigned char, addr, xprt != NULL ?
xprt->xpt_remotelen : 0)
),
TP_fast_assign(
__entry->xprt = xprt;
xprt ? memcpy(&__entry->ss, &xprt->xpt_remote, sizeof(__entry->ss)) : memset(&__entry->ss, 0, sizeof(__entry->ss));
__entry->len = len;
__entry->flags = xprt ? xprt->xpt_flags : 0;
if (xprt) {
memcpy(__get_dynamic_array(addr),
&xprt->xpt_remote,
xprt->xpt_remotelen);
__entry->flags = xprt->xpt_flags;
} else
__entry->flags = 0;
),
TP_printk("xprt=0x%p addr=%pIScp len=%d flags=%s", __entry->xprt,
(struct sockaddr *)&__entry->ss,
__get_dynamic_array_len(addr) != 0 ?
(struct sockaddr *)__get_dynamic_array(addr) : NULL,
__entry->len, show_svc_xprt_flags(__entry->flags))
);
DECLARE_EVENT_CLASS(svc_deferred_event,
TP_PROTO(struct svc_deferred_req *dr),
TP_ARGS(dr),
TP_STRUCT__entry(
__field(__be32, xid)
__dynamic_array(unsigned char, addr, dr->addrlen)
),
TP_fast_assign(
__entry->xid = *(__be32 *)(dr->args + (dr->xprt_hlen>>2));
memcpy(__get_dynamic_array(addr), &dr->addr, dr->addrlen);
),
TP_printk("addr=%pIScp xid=0x%x",
(struct sockaddr *)__get_dynamic_array(addr),
be32_to_cpu(__entry->xid))
);
DEFINE_EVENT(svc_deferred_event, svc_drop_deferred,
TP_PROTO(struct svc_deferred_req *dr),
TP_ARGS(dr));
DEFINE_EVENT(svc_deferred_event, svc_revisit_deferred,
TP_PROTO(struct svc_deferred_req *dr),
TP_ARGS(dr));
#endif /* _TRACE_SUNRPC_H */
#include <trace/define_trace.h>