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author | Paolo Bonzini | 2019-08-09 16:53:39 +0200 |
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committer | Paolo Bonzini | 2019-08-09 16:53:39 +0200 |
commit | 0e1c438c44dd9cde56effb44c5f1cfeda72e108d (patch) | |
tree | fa3492d4d7d8b7444e5d8ebe6c78210826333e4b /tools/perf/builtin-trace.c | |
parent | selftests: kvm: Adding config fragments (diff) | |
parent | arm64: KVM: hyp: debug-sr: Mark expected switch fall-through (diff) | |
download | kernel-qcow2-linux-0e1c438c44dd9cde56effb44c5f1cfeda72e108d.tar.gz kernel-qcow2-linux-0e1c438c44dd9cde56effb44c5f1cfeda72e108d.tar.xz kernel-qcow2-linux-0e1c438c44dd9cde56effb44c5f1cfeda72e108d.zip |
Merge tag 'kvmarm-fixes-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm fixes for 5.3
- A bunch of switch/case fall-through annotation, fixing one actual bug
- Fix PMU reset bug
- Add missing exception class debug strings
Diffstat (limited to 'tools/perf/builtin-trace.c')
-rw-r--r-- | tools/perf/builtin-trace.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index d0eb7224dd36..4f0bbffee05f 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -19,6 +19,7 @@ #include <api/fs/tracing_path.h> #include <bpf/bpf.h> #include "util/bpf_map.h" +#include "util/rlimit.h" #include "builtin.h" #include "util/cgroup.h" #include "util/color.h" @@ -61,6 +62,7 @@ #include <linux/random.h> #include <linux/stringify.h> #include <linux/time64.h> +#include <linux/zalloc.h> #include <fcntl.h> #include <sys/sysmacros.h> @@ -1038,10 +1040,10 @@ static struct thread_trace *thread_trace__new(void) { struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace)); - if (ttrace) + if (ttrace) { ttrace->files.max = -1; - - ttrace->syscall_stats = intlist__new(NULL); + ttrace->syscall_stats = intlist__new(NULL); + } return ttrace; } @@ -3863,6 +3865,15 @@ int cmd_trace(int argc, const char **argv) goto out; } + /* + * Parsing .perfconfig may entail creating a BPF event, that may need + * to create BPF maps, so bump RLIM_MEMLOCK as the default 64K setting + * is too small. This affects just this process, not touching the + * global setting. If it fails we'll get something in 'perf trace -v' + * to help diagnose the problem. + */ + rlimit__bump_memlock(); + err = perf_config(trace__config, &trace); if (err) goto out; |