NFSv4: Add tracepoints for debugging rename (fbc6f7c2) · Commits · e / devices / android_kernel_oneplus_sm7250

fs/nfs/nfs4proc.c

+6 −4

Original line number	Diff line number	Diff line
		@@ -3329,7 +3329,8 @@ static void nfs4_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renam
		static int nfs4_proc_rename_done(struct rpc_task task, struct inode old_dir,
		struct inode *new_dir)
		{
		struct nfs_renameres *res = task->tk_msg.rpc_resp;
		struct nfs_renamedata *data = task->tk_calldata;
		struct nfs_renameres *res = &data->res;

		if (!nfs4_sequence_done(task, &res->seq_res))
		return 0;
		@@ -3375,9 +3376,10 @@ static int nfs4_proc_rename(struct inode old_dir, struct qstr old_name,
		struct nfs4_exception exception = { };
		int err;
		do {
		err = nfs4_handle_exception(NFS_SERVER(old_dir),
		_nfs4_proc_rename(old_dir, old_name,
		new_dir, new_name),
		err = _nfs4_proc_rename(old_dir, old_name,
		new_dir, new_name);
		trace_nfs4_rename(old_dir, old_name, new_dir, new_name, err);
		err = nfs4_handle_exception(NFS_SERVER(old_dir), err,
		&exception);
		} while (exception.retry);
		return err;

+43 −0

Original line number	Diff line number	Diff line
		@@ -461,6 +461,49 @@ DEFINE_NFS4_LOOKUP_EVENT(nfs4_remove);
		DEFINE_NFS4_LOOKUP_EVENT(nfs4_get_fs_locations);
		DEFINE_NFS4_LOOKUP_EVENT(nfs4_secinfo);

		TRACE_EVENT(nfs4_rename,
		TP_PROTO(
		const struct inode *olddir,
		const struct qstr *oldname,
		const struct inode *newdir,
		const struct qstr *newname,
		int error
		),

		TP_ARGS(olddir, oldname, newdir, newname, error),

		TP_STRUCT__entry(
		__field(dev_t, dev)
		__field(int, error)
		__field(u64, olddir)
		__string(oldname, oldname->name)
		__field(u64, newdir)
		__string(newname, newname->name)
		),

		TP_fast_assign(
		__entry->dev = olddir->i_sb->s_dev;
		__entry->olddir = NFS_FILEID(olddir);
		__entry->newdir = NFS_FILEID(newdir);
		__entry->error = error;
		__assign_str(oldname, oldname->name);
		__assign_str(newname, newname->name);
		),

		TP_printk(
		"error=%d (%s) oldname=%02x:%02x:%llu/%s "
		"newname=%02x:%02x:%llu/%s",
		__entry->error,
		show_nfsv4_errors(__entry->error),
		MAJOR(__entry->dev), MINOR(__entry->dev),
		(unsigned long long)__entry->olddir,
		__get_str(oldname),
		MAJOR(__entry->dev), MINOR(__entry->dev),
		(unsigned long long)__entry->newdir,
		__get_str(newname)
		)
		);

		DECLARE_EVENT_CLASS(nfs4_inode_event,
		TP_PROTO(
		const struct inode *inode,