Merge tag 'nfsd-4.15' of git://linux-nfs.org/~bfields/linux

Pull nfsd updates from Bruce Fields:
 "Lots of good bugfixes, including:

   -  fix a number of races in the NFSv4+ state code

   -  fix some shutdown crashes in multiple-network-namespace cases

   -  relax our 4.1 session limits; if you've an artificially low limit
      to the number of 4.1 clients that can mount simultaneously, try
      upgrading"

* tag 'nfsd-4.15' of git://linux-nfs.org/~bfields/linux: (22 commits)
  SUNRPC: Improve ordering of transport processing
  nfsd: deal with revoked delegations appropriately
  svcrdma: Enqueue after setting XPT_CLOSE in completion handlers
  nfsd: use nfs->ns.inum as net ID
  rpc: remove some BUG()s
  svcrdma: Preserve CB send buffer across retransmits
  nfds: avoid gettimeofday for nfssvc_boot time
  fs, nfsd: convert nfs4_file.fi_ref from atomic_t to refcount_t
  fs, nfsd: convert nfs4_cntl_odstate.co_odcount from atomic_t to refcount_t
  fs, nfsd: convert nfs4_stid.sc_count from atomic_t to refcount_t
  lockd: double unregister of inetaddr notifiers
  nfsd4: catch some false session retries
  nfsd4: fix cached replies to solo SEQUENCE compounds
  sunrcp: make function _svc_create_xprt static
  SUNRPC: Fix tracepoint storage issues with svc_recv and svc_rqst_status
  nfsd: use ARRAY_SIZE
  nfsd: give out fewer session slots as limit approaches
  nfsd: increase DRC cache limit
  nfsd: remove unnecessary nofilehandle checks
  nfs_common: convert int to bool
  ...

3 files changed, 13 insertions, 9 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index e9379e258d64..2995a271ec46 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -971,8 +971,8 @@ struct lock_manager {
 struct net;
 void locks_start_grace(struct net *, struct lock_manager *);
 void locks_end_grace(struct lock_manager *);
-int locks_in_grace(struct net *);
-int opens_in_grace(struct net *);
+bool locks_in_grace(struct net *);
+bool opens_in_grace(struct net *);
 
 /* that will die - we need it for nfs_lock_info */
 #include <linux/nfs_fs_i.h>
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 3b9f0d1dbb80..786ae2255f05 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -47,6 +47,7 @@ struct svc_pool {
 	struct svc_pool_stats	sp_stats;	/* statistics on pool operation */
 #define	SP_TASK_PENDING		(0)		/* still work to do even if no
 						 * xprt is queued. */
+#define SP_CONGESTED		(1)
 	unsigned long		sp_flags;
 } ____cacheline_aligned_in_smp;
 
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index ecbdbfe86eb6..8c153f68509e 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -486,20 +486,22 @@ TRACE_EVENT(svc_recv,
 	TP_ARGS(rqst, status),
 
 	TP_STRUCT__entry(
-		__field(struct sockaddr *, addr)
 		__field(u32, xid)
 		__field(int, status)
 		__field(unsigned long, flags)
+		__dynamic_array(unsigned char, addr, rqst->rq_addrlen)
 	),
 
 	TP_fast_assign(
-		__entry->addr = (struct sockaddr *)&rqst->rq_addr;
 		__entry->xid = status > 0 ? be32_to_cpu(rqst->rq_xid) : 0;
 		__entry->status = status;
 		__entry->flags = rqst->rq_flags;
+		memcpy(__get_dynamic_array(addr),
+			&rqst->rq_addr, rqst->rq_addrlen);
 	),
 
-	TP_printk("addr=%pIScp xid=0x%08x status=%d flags=%s", __entry->addr,
+	TP_printk("addr=%pIScp xid=0x%08x status=%d flags=%s",
+			(struct sockaddr *)__get_dynamic_array(addr),
 			__entry->xid, __entry->status,
 			show_rqstp_flags(__entry->flags))
 );
@@ -544,22 +546,23 @@ DECLARE_EVENT_CLASS(svc_rqst_status,
 	TP_ARGS(rqst, status),
 
 	TP_STRUCT__entry(
-		__field(struct sockaddr *, addr)
 		__field(u32, xid)
-		__field(int, dropme)
 		__field(int, status)
 		__field(unsigned long, flags)
+		__dynamic_array(unsigned char, addr, rqst->rq_addrlen)
 	),
 
 	TP_fast_assign(
-		__entry->addr = (struct sockaddr *)&rqst->rq_addr;
 		__entry->xid = be32_to_cpu(rqst->rq_xid);
 		__entry->status = status;
 		__entry->flags = rqst->rq_flags;
+		memcpy(__get_dynamic_array(addr),
+			&rqst->rq_addr, rqst->rq_addrlen);
 	),
 
 	TP_printk("addr=%pIScp rq_xid=0x%08x status=%d flags=%s",
-		__entry->addr, __entry->xid,
+		(struct sockaddr *)__get_dynamic_array(addr),
+		__entry->xid,
 		__entry->status, show_rqstp_flags(__entry->flags))
 );