fadump: Introduce cleanup routine to invalidate /proc/vmcore.

[firefly-linux-kernel-4.4.55.git] / tools / perf / builtin-top.c

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 8f80df89603822e5431f45f1374cf926208f23ed..dd162aa24baad2f44c5cbb1b4176fb2b2cc7b26d 100644 (file)
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -89,8 +89,6 @@ void get_term_dimensions(struct winsize *ws)
 
 static void perf_top__update_print_entries(struct perf_top *top)
 {
-       top->print_entries = top->winsize.ws_row;
-
        if (top->print_entries > 9)
                top->print_entries -= 9;
 }
@@ -100,6 +98,13 @@ static void perf_top__sig_winch(int sig __used, siginfo_t *info __used, void *ar
        struct perf_top *top = arg;
 
        get_term_dimensions(&top->winsize);
+       if (!top->print_entries
+           || (top->print_entries+4) > top->winsize.ws_row) {
+               top->print_entries = top->winsize.ws_row;
+       } else {
+               top->print_entries += 4;
+               top->winsize.ws_row = top->print_entries;
+       }
        perf_top__update_print_entries(top);
 }
 
@@ -453,8 +458,10 @@ static void perf_top__handle_keypress(struct perf_top *top, int c)
                                };
                                perf_top__sig_winch(SIGWINCH, NULL, top);
                                sigaction(SIGWINCH, &act, NULL);
-                       } else
+                       } else {
+                               perf_top__sig_winch(SIGWINCH, NULL, top);
                                signal(SIGWINCH, SIG_DFL);
+                       }
                        break;
                case 'E':
                        if (top->evlist->nr_entries > 1) {