Messages in this thread | | | Date | Wed, 17 Apr 2019 09:38:00 +0200 | From | Jiri Olsa <> | Subject | Re: [PATCH] perf tools: Fix perf_env__find_bpf_prog_info rb tree lookup |
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On Tue, Apr 16, 2019 at 08:25:17PM +0000, Song Liu wrote: > > > > On Apr 16, 2019, at 7:37 AM, Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com> wrote: > > > > Em Tue, Apr 16, 2019 at 11:35:54AM -0300, Arnaldo Carvalho de Melo escreveu: > >> Em Tue, Apr 16, 2019 at 04:34:52PM +0200, Jiri Olsa escreveu: > >>> On Tue, Apr 16, 2019 at 11:20:28AM -0300, Arnaldo Carvalho de Melo wrote: > >>>> Em Tue, Apr 16, 2019 at 03:41:51PM +0200, Jiri Olsa escreveu: > >>>>> We currently don't return NULL in case we don't find > >>>>> the bpf_prog_info_node, fixing that. > >>>> > >>>> Can you please try to figure out what was the changeset that introduced > >>>> this problem so that we can have a Fixes: tag that helps me determine if > >>>> this should go to perf/urgent (likely) or (perf/core) and to help the > >>>> stable guys as well? > >>> > >>> sry, I keep forgetting this.. > >>> > >>> Fixes: e4378f0cb90b ("perf bpf: Save bpf_prog_info in a rbtree in perf_env") > >> > >> I had just added: > >> > >> Fixes: e4378f0cb90b ("perf bpf: Save bpf_prog_info in a rbtree in perf_env") > >> > >> matches, good :-) > >> > >> At firts I thought hey the look checks for NULL, then, hey, different > >> variable... good catch! > > > > Ah, I also changed the summary from: > > > > "perf tools: Fix perf_env__find_bpf_prog_info rb tree" > > > > to: > > > > perf bpf: Return NULL when RB tree lookup fails in perf_env__find_bpf_prog_info() > > > > Thanks, > > > > - Arnaldo > > Thanks Jiri and Arnaldo! > > I think we will need similar fix for perf_env__find_btf().
right, I'll post it
thanks, jirka
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