perf top: Use pid_t for target_{pid|tid}

Use pid_t data type for target_{pid|tid} vars.

Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <20110205203938.GA15328@hera.kernel.org>
Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
[ committer note: those variables are now in struct perf_top, fixed ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/top.h

@@ -46,8 +46,8 @@ struct perf_top {
 	u64		   exact_samples;
 	u64		   guest_us_samples, guest_kernel_samples;
 	int		   print_entries, count_filter, delay_secs;
-	int		   display_weighted, freq, rb_entries;
-	int		   sym_counter, target_pid, target_tid;
+	int		   display_weighted, freq, rb_entries, sym_counter;
+	pid_t		   target_pid, target_tid;
 	bool		   hide_kernel_symbols, hide_user_symbols, zero;
 	const char	   *cpu_list;
 	struct perf_evsel  *sym_evsel;