diff options
author | David S. Miller <davem@davemloft.net> | 2017-12-10 04:09:55 +0100 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2017-12-10 04:09:55 +0100 |
commit | 51e18a453f5f59a40c721d4aeab082b4e2e9fac6 (patch) | |
tree | 540d37e6f7a83466677ab6095fcdd2d6f72583c4 /tools/perf/builtin-top.c | |
parent | macvlan: fix memory hole in macvlan_dev (diff) | |
parent | kmemcheck: rip it out for real (diff) | |
download | linux-51e18a453f5f59a40c721d4aeab082b4e2e9fac6.tar.xz linux-51e18a453f5f59a40c721d4aeab082b4e2e9fac6.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflict was two parallel additions of include files to sch_generic.c,
no biggie.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/builtin-top.c')
-rw-r--r-- | tools/perf/builtin-top.c | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 477a8699f0b5..9e0d2645ae13 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -77,6 +77,7 @@ #include "sane_ctype.h" static volatile int done; +static volatile int resize; #define HEADER_LINE_NR 5 @@ -85,11 +86,13 @@ static void perf_top__update_print_entries(struct perf_top *top) top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; } -static void perf_top__sig_winch(int sig __maybe_unused, - siginfo_t *info __maybe_unused, void *arg) +static void winch_sig(int sig __maybe_unused) { - struct perf_top *top = arg; + resize = 1; +} +static void perf_top__resize(struct perf_top *top) +{ get_term_dimensions(&top->winsize); perf_top__update_print_entries(top); } @@ -473,12 +476,8 @@ static bool perf_top__handle_keypress(struct perf_top *top, int c) case 'e': prompt_integer(&top->print_entries, "Enter display entries (lines)"); if (top->print_entries == 0) { - struct sigaction act = { - .sa_sigaction = perf_top__sig_winch, - .sa_flags = SA_SIGINFO, - }; - perf_top__sig_winch(SIGWINCH, NULL, top); - sigaction(SIGWINCH, &act, NULL); + perf_top__resize(top); + signal(SIGWINCH, winch_sig); } else { signal(SIGWINCH, SIG_DFL); } @@ -732,14 +731,16 @@ static void perf_event__process_sample(struct perf_tool *tool, if (!machine->kptr_restrict_warned && symbol_conf.kptr_restrict && al.cpumode == PERF_RECORD_MISC_KERNEL) { - ui__warning( + if (!perf_evlist__exclude_kernel(top->session->evlist)) { + ui__warning( "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" "Check /proc/sys/kernel/kptr_restrict.\n\n" "Kernel%s samples will not be resolved.\n", al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? " modules" : ""); - if (use_browser <= 0) - sleep(5); + if (use_browser <= 0) + sleep(5); + } machine->kptr_restrict_warned = true; } @@ -1030,6 +1031,11 @@ static int __cmd_top(struct perf_top *top) if (hits == top->samples) ret = perf_evlist__poll(top->evlist, 100); + + if (resize) { + perf_top__resize(top); + resize = 0; + } } ret = 0; @@ -1352,12 +1358,8 @@ int cmd_top(int argc, const char **argv) get_term_dimensions(&top.winsize); if (top.print_entries == 0) { - struct sigaction act = { - .sa_sigaction = perf_top__sig_winch, - .sa_flags = SA_SIGINFO, - }; perf_top__update_print_entries(&top); - sigaction(SIGWINCH, &act, NULL); + signal(SIGWINCH, winch_sig); } status = __cmd_top(&top); |