From: Ravi Bangoria Date: Thu, 22 Aug 2019 08:50:45 +0000 (+0530) Subject: perf c2c: Fix report with offline cpus X-Git-Tag: v5.4-rc1~177^2~16^2~1 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=1ea770f6c1971bc101b3741f4d88b0b4ea5c4181;p=linux.git perf c2c: Fix report with offline cpus If c2c is recorded on a machine where any cpus are offline, 'perf c2c report' throws an error "node/cpu topology bugFailed setup nodes". It fails because while preparing node-cpu mapping we don't consider offline cpus. Reported-by: Nageswara R Sastry Signed-off-by: Ravi Bangoria Acked-by: Jiri Olsa Fixes: 1e181b92a2da ("perf c2c report: Add 'node' sort key") Link: http://lkml.kernel.org/r/20190822085045.25108-1-ravi.bangoria@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index 01629f5b6d1f..211143720078 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -2027,7 +2027,7 @@ static int setup_nodes(struct perf_session *session) c2c.node_info = 2; c2c.nodes_cnt = session->header.env.nr_numa_nodes; - c2c.cpus_cnt = session->header.env.nr_cpus_online; + c2c.cpus_cnt = session->header.env.nr_cpus_avail; n = session->header.env.numa_nodes; if (!n)