From: Vicent Marti <tanoku@gmail.com>
Date: Sat, 30 Apr 2016 12:13:26 +0000 (+0200)
Subject: lua: Do not try to detach buffers as kprobes
X-Git-Tag: v0.2.0~102^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b3dd67316f0f69ae8abbc8fdcc552234ee07e993;p=platform%2Fupstream%2Fbcc.git

lua: Do not try to detach buffers as kprobes
---

diff --git a/src/lua/bcc/bpf.lua b/src/lua/bcc/bpf.lua
index 6472672..e76e608 100644
--- a/src/lua/bcc/bpf.lua
+++ b/src/lua/bcc/bpf.lua
@@ -41,7 +41,8 @@ function Bpf.static.cleanup_probes()
   local function detach_all(probe_type, all_probes)
     for key, probe in pairs(all_probes) do
       libbcc.perf_reader_free(probe)
-      if type(key) == "string" then
+      -- skip bcc-specific kprobes
+      if not key:starts("bcc:") then
         local desc = string.format("-:%s/%s", probe_type, key)
         log.info("detaching %s", desc)
 
diff --git a/src/lua/bcc/table.lua b/src/lua/bcc/table.lua
index 33f1cb1..af269d8 100644
--- a/src/lua/bcc/table.lua
+++ b/src/lua/bcc/table.lua
@@ -236,7 +236,7 @@ function PerfEventArray:initialize(bpf, map_id, map_fd, key_type, leaf_type)
 end
 
 local function _perf_id(id, cpu)
-  return string.format("perf_event_array:%d:%d", tonumber(id), cpu or 0)
+  return string.format("bcc:perf_event_array:%d:%d", tonumber(id), cpu or 0)
 end
 
 function PerfEventArray:_open_perf_buffer(cpu, callback, ctype)