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Diffstat (limited to 'kernel/tools/perf/builtin-kvm.c')
-rw-r--r--kernel/tools/perf/builtin-kvm.c26
1 files changed, 18 insertions, 8 deletions
diff --git a/kernel/tools/perf/builtin-kvm.c b/kernel/tools/perf/builtin-kvm.c
index 1f9338f61..dd94b4ca2 100644
--- a/kernel/tools/perf/builtin-kvm.c
+++ b/kernel/tools/perf/builtin-kvm.c
@@ -13,7 +13,6 @@
#include "util/parse-options.h"
#include "util/trace-event.h"
#include "util/debug.h"
-#include <api/fs/debugfs.h>
#include "util/tool.h"
#include "util/stat.h"
#include "util/top.h"
@@ -651,6 +650,7 @@ static int process_sample_event(struct perf_tool *tool,
struct perf_evsel *evsel,
struct machine *machine)
{
+ int err = 0;
struct thread *thread;
struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat,
tool);
@@ -666,9 +666,10 @@ static int process_sample_event(struct perf_tool *tool,
}
if (!handle_kvm_event(kvm, thread, evsel, sample))
- return -1;
+ err = -1;
- return 0;
+ thread__put(thread);
+ return err;
}
static int cpu_isa_config(struct perf_kvm_stat *kvm)
@@ -1059,8 +1060,10 @@ static int read_events(struct perf_kvm_stat *kvm)
symbol__init(&kvm->session->header.env);
- if (!perf_session__has_traces(kvm->session, "kvm record"))
- return -EINVAL;
+ if (!perf_session__has_traces(kvm->session, "kvm record")) {
+ ret = -EINVAL;
+ goto out_delete;
+ }
/*
* Do not use 'isa' recorded in kvm_exit tracepoint since it is not
@@ -1068,9 +1071,13 @@ static int read_events(struct perf_kvm_stat *kvm)
*/
ret = cpu_isa_config(kvm);
if (ret < 0)
- return ret;
+ goto out_delete;
- return perf_session__process_events(kvm->session);
+ ret = perf_session__process_events(kvm->session);
+
+out_delete:
+ perf_session__delete(kvm->session);
+ return ret;
}
static int parse_target_str(struct perf_kvm_stat *kvm)
@@ -1309,6 +1316,8 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
"show events other than"
" HLT (x86 only) or Wait state (s390 only)"
" that take longer than duration usecs"),
+ OPT_UINTEGER(0, "proc-map-timeout", &kvm->opts.proc_map_timeout,
+ "per thread proc mmap processing timeout in ms"),
OPT_END()
};
const char * const live_usage[] = {
@@ -1336,6 +1345,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
kvm->opts.target.uses_mmap = false;
kvm->opts.target.uid_str = NULL;
kvm->opts.target.uid = UINT_MAX;
+ kvm->opts.proc_map_timeout = 500;
symbol__init(NULL);
disable_buildid_cache();
@@ -1391,7 +1401,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
perf_session__set_id_hdr_size(kvm->session);
ordered_events__set_copy_on_queue(&kvm->session->ordered_events, true);
machine__synthesize_threads(&kvm->session->machines.host, &kvm->opts.target,
- kvm->evlist->threads, false);
+ kvm->evlist->threads, false, kvm->opts.proc_map_timeout);
err = kvm_live_open_events(kvm);
if (err)
goto out;