NFSv4: Add a tracepoint for CB_GETATTR (7cd14861) · Commits · e / devices / android_kernel_fairphone_FP3

fs/nfs/callback_proc.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -40,8 +40,11 @@ __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
		rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR));

		inode = nfs_delegation_find_inode(cps->clp, &args->fh);
		if (inode == NULL)
		if (inode == NULL) {
		trace_nfs4_cb_getattr(cps->clp, &args->fh, inode,
		-ntohl(res->status));
		goto out;
		}
		nfsi = NFS_I(inode);
		rcu_read_lock();
		delegation = rcu_dereference(nfsi->delegation);
		@@ -60,6 +63,7 @@ __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
		res->status = 0;
		out_iput:
		rcu_read_unlock();
		trace_nfs4_cb_getattr(cps->clp, &args->fh, inode, -ntohl(res->status));
		iput(inode);
		out:
		dprintk("%s: exit with status = %d\n", __func__, ntohl(res->status));

+59 −0

Original line number	Diff line number	Diff line
		@@ -884,6 +884,65 @@ DEFINE_NFS4_GETATTR_EVENT(nfs4_getattr);
		DEFINE_NFS4_GETATTR_EVENT(nfs4_lookup_root);
		DEFINE_NFS4_GETATTR_EVENT(nfs4_fsinfo);

		DECLARE_EVENT_CLASS(nfs4_inode_callback_event,
		TP_PROTO(
		const struct nfs_client *clp,
		const struct nfs_fh *fhandle,
		const struct inode *inode,
		int error
		),

		TP_ARGS(clp, fhandle, inode, error),

		TP_STRUCT__entry(
		__field(int, error)
		__field(dev_t, dev)
		__field(u32, fhandle)
		__field(u64, fileid)
		__string(dstaddr, clp ?
		rpc_peeraddr2str(clp->cl_rpcclient,
		RPC_DISPLAY_ADDR) : "unknown")
		),

		TP_fast_assign(
		__entry->error = error;
		__entry->fhandle = nfs_fhandle_hash(fhandle);
		if (inode != NULL) {
		__entry->fileid = NFS_FILEID(inode);
		__entry->dev = inode->i_sb->s_dev;
		} else {
		__entry->fileid = 0;
		__entry->dev = 0;
		}
		__assign_str(dstaddr, clp ?
		rpc_peeraddr2str(clp->cl_rpcclient,
		RPC_DISPLAY_ADDR) : "unknown")
		),

		TP_printk(
		"error=%d (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
		"dstaddr=%s",
		__entry->error,
		show_nfsv4_errors(__entry->error),
		MAJOR(__entry->dev), MINOR(__entry->dev),
		(unsigned long long)__entry->fileid,
		__entry->fhandle,
		__get_str(dstaddr)
		)
		);

		#define DEFINE_NFS4_INODE_CALLBACK_EVENT(name) \
		DEFINE_EVENT(nfs4_inode_callback_event, name, \
		TP_PROTO( \
		const struct nfs_client *clp, \
		const struct nfs_fh *fhandle, \
		const struct inode *inode, \
		int error \
		), \
		TP_ARGS(clp, fhandle, inode, error))
		DEFINE_NFS4_INODE_CALLBACK_EVENT(nfs4_cb_getattr);


		DECLARE_EVENT_CLASS(nfs4_idmap_event,
		TP_PROTO(
		const char *name,