[tip:perf/core] kprobetrace, doc: Add the explanation to remove probe points
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From: tip-bot for Motohiro KOSAKI on 20 Jan 2010 02:20 Commit-ID: df3ab708b787a2b35de5101452bd51d4a8ae0ded Gitweb: http://git.kernel.org/tip/df3ab708b787a2b35de5101452bd51d4a8ae0ded Author: Motohiro KOSAKI <kosaki.motohiro(a)jp.fujitsu.com> AuthorDate: Mon, 18 Jan 2010 21:35:12 -0500 Committer: Ingo Molnar <mingo(a)elte.hu> CommitDate: Wed, 20 Jan 2010 07:18:15 +0100 kprobetrace, doc: Add the explanation to remove probe points Latest kprobetrace can remove probe points selectively, thus the documentation should be updated too. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com> Signed-off-by: Masami Hiramatsu <mhiramat(a)redhat.com> Cc: systemtap <systemtap(a)sources.redhat.com> Cc: DLE <dle-develop(a)lists.sourceforge.net> LKML-Reference: <20100119023512.31880.35535.stgit(a)localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo(a)elte.hu> --- Documentation/trace/kprobetrace.txt | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt index ab57f02..a9100b2 100644 --- a/Documentation/trace/kprobetrace.txt +++ b/Documentation/trace/kprobetrace.txt @@ -24,6 +24,7 @@ Synopsis of kprobe_events ------------------------- p[:[GRP/]EVENT] SYMBOL[+offs]|MEMADDR [FETCHARGS] : Set a probe r[:[GRP/]EVENT] SYMBOL[+0] [FETCHARGS] : Set a return probe + -:[GRP/]EVENT : Clear a probe GRP : Group name. If omitted, use "kprobes" for it. EVENT : Event name. If omitted, the event name is generated @@ -122,6 +123,12 @@ REC->dfd, REC->filename, REC->flags, REC->mode This clears all probe points. + Or, + + echo -:myprobe >> kprobe_events + + This clears probe points selectively. + Right after definition, each event is disabled by default. For tracing these events, you need to enable it. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |