From 3e3405906dab00afecd5a16871850a088eba4626 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Tue, 15 Dec 2009 10:31:49 -0500 Subject: [PATCH] perf probe: Fix --del to update current event list Fix --del option to update current existing event list after perf probe deleted an event. Signed-off-by: Masami Hiramatsu Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Steven Rostedt Cc: Jim Keniston Cc: Ananth N Mavinakayanahalli Cc: Christoph Hellwig Cc: Frank Ch. Eigler Cc: Jason Baron Cc: K.Prasad Cc: Peter Zijlstra Cc: Srikar Dronamraju Cc: systemtap Cc: DLE Cc: Frederic Weisbecker LKML-Reference: <20091215153149.17436.61265.stgit@dhcp-100-2-132.bos.redhat.com> Signed-off-by: Ingo Molnar --- tools/perf/util/probe-event.c | 5 ++++- tools/perf/util/strlist.c | 6 +++--- tools/perf/util/strlist.h | 7 ++++++- 3 files changed, 13 insertions(+), 5 deletions(-) diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 1eacee6eca4b..eab25d638f21 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -540,10 +540,12 @@ static void del_trace_kprobe_event(int fd, const char *group, const char *event, struct strlist *namelist) { char buf[128]; + struct str_node *ent; if (e_snprintf(buf, 128, "%s:%s", group, event) < 0) die("Failed to copy event."); - if (!strlist__has_entry(namelist, buf)) { + ent = strlist__find(namelist, buf); + if (!ent) { pr_info("Info: event \"%s\" does not exist, could not remove it.\n", buf); return; } @@ -553,6 +555,7 @@ static void del_trace_kprobe_event(int fd, const char *group, write_trace_kprobe_event(fd, buf); printf("Remove event: %s:%s\n", group, event); + strlist__remove(namelist, ent); } void del_trace_kprobe_events(struct strlist *dellist) diff --git a/tools/perf/util/strlist.c b/tools/perf/util/strlist.c index 7ad38171dc2b..6783a2043555 100644 --- a/tools/perf/util/strlist.c +++ b/tools/perf/util/strlist.c @@ -102,7 +102,7 @@ void strlist__remove(struct strlist *self, struct str_node *sn) str_node__delete(sn, self->dupstr); } -bool strlist__has_entry(struct strlist *self, const char *entry) +struct str_node *strlist__find(struct strlist *self, const char *entry) { struct rb_node **p = &self->entries.rb_node; struct rb_node *parent = NULL; @@ -120,10 +120,10 @@ bool strlist__has_entry(struct strlist *self, const char *entry) else if (rc < 0) p = &(*p)->rb_right; else - return true; + return sn; } - return false; + return NULL; } static int strlist__parse_list_entry(struct strlist *self, const char *s) diff --git a/tools/perf/util/strlist.h b/tools/perf/util/strlist.h index cb4659306d7b..59091c77eef2 100644 --- a/tools/perf/util/strlist.h +++ b/tools/perf/util/strlist.h @@ -23,7 +23,12 @@ int strlist__load(struct strlist *self, const char *filename); int strlist__add(struct strlist *self, const char *str); struct str_node *strlist__entry(const struct strlist *self, unsigned int idx); -bool strlist__has_entry(struct strlist *self, const char *entry); +struct str_node *strlist__find(struct strlist *self, const char *entry); + +static inline bool strlist__has_entry(struct strlist *self, const char *entry) +{ + return strlist__find(self, entry) != NULL; +} static inline bool strlist__empty(const struct strlist *self) { -- 2.20.1