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| author | Ingo Molnar <mingo@kernel.org> | 2015-04-08 17:03:47 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-04-08 17:03:47 +0200 |
| commit | 51ab7155c08baf45cc2aa911961e5b78422e478f (patch) | |
| tree | f6b0c0d524a376fa4e0411d08bac307d931f35c9 /tools/perf/util/machine.c | |
| parent | 6645f3187f5beb64f7a40515cfa18f3889264ece (diff) | |
| parent | a1e12da4796a4ddd0e911687a290eb396d1c64bf (diff) | |
| download | linux-51ab7155c08baf45cc2aa911961e5b78422e478f.tar.bz2 | |
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
User visible changes:
- Teach 'perf record' about perf_event_attr.clockid (Peter Zijlstra)
- Improve 'perf sched replay' on high CPU core count machines (Yunlong Song)
- Consider PERF_RECORD_ events with cpumode == 0 in 'perf top', removing one
cause of long term memory usage buildup, i.e. not processing PERF_RECORD_EXIT
events (Arnaldo Carvalho de Melo)
- Add 'I' event modifier for perf_event_attr.exclude_idle bit (Jiri Olsa)
- Respect -i option 'in perf kmem' (Jiri Olsa)
Infrastructure changes:
- Honor operator priority in libtraceevent (Namhyung Kim)
- Merge all perf_event_attr print functions (Peter Zijlstra)
- Check kmaps access to make code more robust (Wang Nan)
- Fix inverted logic in perf_mmap__empty() (He Kuang)
- Fix ARM 32 'perf probe' building error (Wang Nan)
- Fix perf_event_attr tests (Jiri Olsa)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/util/machine.c')
| -rw-r--r-- | tools/perf/util/machine.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index e45c8f33a8fd..9c380a2caa54 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -679,6 +679,9 @@ int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel) machine->vmlinux_maps[type]->unmap_ip = identity__map_ip; kmap = map__kmap(machine->vmlinux_maps[type]); + if (!kmap) + return -1; + kmap->kmaps = &machine->kmaps; map_groups__insert(&machine->kmaps, machine->vmlinux_maps[type]); @@ -700,7 +703,7 @@ void machine__destroy_kernel_maps(struct machine *machine) kmap = map__kmap(machine->vmlinux_maps[type]); map_groups__remove(&machine->kmaps, machine->vmlinux_maps[type]); - if (kmap->ref_reloc_sym) { + if (kmap && kmap->ref_reloc_sym) { /* * ref_reloc_sym is shared among all maps, so free just * on one of them. |