1. 10 Apr, 2023 9 commits
    • Ian Rogers's avatar
      perf version: Use regular verbose flag · 2176f9e2
      Ian Rogers authored
      Remove additional version_verbose flag by using the existing verbose
      variable.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
      Cc: Chengdong Li <chengdongli@tencent.com>
      Cc: Denis Nikitin <denik@chromium.org>
      Cc: Florian Fischer <florian.fischer@muhq.space>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Martin Liška <mliska@suse.cz>
      Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
      Cc: Mike Leach <mike.leach@linaro.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Raul Silvera <rsilvera@google.com>
      Cc: Ravi Bangoria <ravi.bangoria@amd.com>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
      Cc: Will Deacon <will@kernel.org>
      Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
      Cc: coresight@lists.linaro.org
      Cc: linux-arm-kernel@lists.infradead.org
      Link: https://lore.kernel.org/r/20230410162511.3055900-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      2176f9e2
    • Ian Rogers's avatar
      perf header: Move perf_version_string declaration · 8641661c
      Ian Rogers authored
      Move to match the definition in header.c.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
      Cc: Chengdong Li <chengdongli@tencent.com>
      Cc: Denis Nikitin <denik@chromium.org>
      Cc: Florian Fischer <florian.fischer@muhq.space>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Martin Liška <mliska@suse.cz>
      Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
      Cc: Mike Leach <mike.leach@linaro.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Raul Silvera <rsilvera@google.com>
      Cc: Ravi Bangoria <ravi.bangoria@amd.com>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
      Cc: Will Deacon <will@kernel.org>
      Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
      Cc: coresight@lists.linaro.org
      Cc: linux-arm-kernel@lists.infradead.org
      Link: https://lore.kernel.org/r/20230410162511.3055900-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      8641661c
    • Ian Rogers's avatar
      perf usage: Move usage strings · 0adea51a
      Ian Rogers authored
      The usage function is part of util.h, move the usage strings there
      too.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
      Cc: Chengdong Li <chengdongli@tencent.com>
      Cc: Denis Nikitin <denik@chromium.org>
      Cc: Florian Fischer <florian.fischer@muhq.space>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Martin Liška <mliska@suse.cz>
      Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
      Cc: Mike Leach <mike.leach@linaro.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Raul Silvera <rsilvera@google.com>
      Cc: Ravi Bangoria <ravi.bangoria@amd.com>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
      Cc: Will Deacon <will@kernel.org>
      Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
      Cc: coresight@lists.linaro.org
      Cc: linux-arm-kernel@lists.infradead.org
      Link: https://lore.kernel.org/r/20230410162511.3055900-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0adea51a
    • Ian Rogers's avatar
      perf ui: Move window resize signal functions · cd8ef949
      Ian Rogers authored
      Move under tools/perf/ui rather than in perf.c.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
      Cc: Chengdong Li <chengdongli@tencent.com>
      Cc: Denis Nikitin <denik@chromium.org>
      Cc: Florian Fischer <florian.fischer@muhq.space>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Martin Liška <mliska@suse.cz>
      Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
      Cc: Mike Leach <mike.leach@linaro.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Raul Silvera <rsilvera@google.com>
      Cc: Ravi Bangoria <ravi.bangoria@amd.com>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
      Cc: Will Deacon <will@kernel.org>
      Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
      Cc: coresight@lists.linaro.org
      Cc: linux-arm-kernel@lists.infradead.org
      Link: https://lore.kernel.org/r/20230410162511.3055900-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      cd8ef949
    • Ian Rogers's avatar
      perf test stat+json_output: Write JSON output to a file · 760eafb2
      Ian Rogers authored
      Write the JSON output to a file, then sanity check this output. This
      avoids problems with debug/warning/error output corrupting the file
      format.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Link: https://lore.kernel.org/r/20230408054456.3001367-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      760eafb2
    • Ian Rogers's avatar
      perf stat: Don't write invalid "started on" comment for JSON output · 4228df84
      Ian Rogers authored
      JSON files don't support comments. Disable the "started on" comment when
      writing json output to file.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Link: https://lore.kernel.org/r/20230408054456.3001367-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      4228df84
    • Ian Rogers's avatar
      perf test stat+csv_output: Write CSV output to a file · 22036829
      Ian Rogers authored
      Write the CSV output to a file, then sanity check this output. This
      avoids problems with debug/warning/error output corrupting the file
      format.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Link: https://lore.kernel.org/r/20230408054456.3001367-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      22036829
    • Ian Rogers's avatar
      perf bpf filter: Support pre-5.16 kernels where 'mem_hops' isn't in 'union perf_mem_data_src' · 3a8b8fc3
      Ian Rogers authored
      The 'mem_hops' bits were added in 5.16 with no prior equivalent.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: bpf@vger.kernel.org
      Link: https://lore.kernel.org/r/20230408055208.1283832-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      3a8b8fc3
    • Ian Rogers's avatar
      perf lock contention: Support pre-5.14 kernels · 0c122848
      Ian Rogers authored
      'struct rq's member '__lock' was renamed from 'lock' in 5.14.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: bpf@vger.kernel.org
      Link: https://lore.kernel.org/r/20230408055208.1283832-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0c122848
  2. 07 Apr, 2023 25 commits
    • Ian Rogers's avatar
      perf map: Changes to reference counting · ec417ad4
      Ian Rogers authored
      When a pointer to a map exists do a get, when that pointer is
      overwritten or freed, put the map. This avoids issues with gets and
      puts being inconsistently used causing, use after puts, etc. For
      example, the map in struct addr_location is changed to hold a
      reference count. Reference count checking and address sanitizer were
      used to identify issues.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230404205954.2245628-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      ec417ad4
    • Ian Rogers's avatar
      perf maps: Modify maps_by_name to hold a reference to a map · 392cf49e
      Ian Rogers authored
      To make it clearer about the ownership of a reference count split the
      by-name case from the regular start-address sorted tree. Put the
      reference count when maps_by_name is freed, which requires moving a
      decrement to nr_maps in maps__remove. Add two missing map puts in
      maps__fixup_overlappings in the event maps__insert fails.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230404205954.2245628-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      392cf49e
    • Ian Rogers's avatar
      perf test: Add extra diagnostics to maps test · 93c9f1c2
      Ian Rogers authored
      Dump the resultant and comparison maps on failure.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230404205954.2245628-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      93c9f1c2
    • Ian Rogers's avatar
      perf map: Add accessors for ->pgoff and ->reloc · 2a6e5e8a
      Ian Rogers authored
      Later changes will add reference count checking for 'struct map'. Add
      accessors so that the reference count check is only necessary in one
      place.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230404205954.2245628-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      2a6e5e8a
    • Ian Rogers's avatar
      perf map: Add accessors for ->prot, ->priv and ->flags · ddee3f2b
      Ian Rogers authored
      Later changes will add reference count checking for 'struct map'. Add an
      accessor so that the reference count check is only necessary in one
      place.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230404205954.2245628-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      ddee3f2b
    • Ian Rogers's avatar
      perf map: Add helper for ->map_ip() and ->unmap_ip() · 78a1f7cd
      Ian Rogers authored
      Later changes will add reference count checking for struct map, add a
      helper function to invoke the map_ip and unmap_ip function pointers. The
      helper allows the reference count check to be in fewer places.
      
      Committer notes:
      
      Add missing conversions to:
      
        tools/perf/util/map.c
        tools/perf/util/cs-etm.c
        tools/perf/util/annotate.c
        tools/perf/arch/powerpc/util/sym-handling.c
        tools/perf/arch/s390/annotate/instructions.c
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230404205954.2245628-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      78a1f7cd
    • Ian Rogers's avatar
      perf map: Rename map_ip() and unmap_ip() · 0e6aa013
      Ian Rogers authored
      Add dso to match comment. This avoids a naming conflict with later
      added accessor functions for variables in struct map.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230404205954.2245628-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0e6aa013
    • Ian Rogers's avatar
      perf vendor events intel: Update free running tigerlake events · 5a4f5be9
      Ian Rogers authored
      Fix the topic, PMU name, event code and umask.
      
      These updates were generated by:
      https://github.com/intel/perfmon/blob/main/scripts/create_perf_json.py
      with this PR:
      https://github.com/intel/perfmon/pull/66Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
      Link: https://lore.kernel.org/r/20230407001322.2776268-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      5a4f5be9
    • Ian Rogers's avatar
      perf vendor events intel: Update free running snowridgex events · 4781f1f2
      Ian Rogers authored
      Fix the PMU names, event code and umask. Remove UNC_IIO_BANDWIDTH_OUT
      events that aren't supported.
      
      These updates were generated by:
      https://github.com/intel/perfmon/blob/main/scripts/create_perf_json.py
      with this PR:
      https://github.com/intel/perfmon/pull/66Signed-off-by: default avatarIan Rogers <irogers@google.com>
      :
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
      Link: https://lore.kernel.org/r/20230407001322.2776268-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      4781f1f2
    • Ian Rogers's avatar
      perf vendor events intel: Correct knightslanding memory topic · 54bc363a
      Ian Rogers authored
      Correct the memory topic of events for the imc related PMUs.
      
      These updates were generated by:
      https://github.com/intel/perfmon/blob/main/scripts/create_perf_json.py
      with this PR:
      https://github.com/intel/perfmon/pull/66Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
      Link: https://lore.kernel.org/r/20230407001322.2776268-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      54bc363a
    • Ian Rogers's avatar
      perf vendor events intel: Update free running icelakex events · 5a45940b
      Ian Rogers authored
      Fix the PMU names, event code and umask. Remove UNC_IIO_BANDWIDTH_OUT
      events that aren't supported.
      
      These updates were generated by:
      https://github.com/intel/perfmon/blob/main/scripts/create_perf_json.py
      with this PR:
      https://github.com/intel/perfmon/pull/66Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
      Link: https://lore.kernel.org/r/20230407001322.2776268-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      5a45940b
    • Ian Rogers's avatar
      perf vendor events intel: Update free running alderlake events · 2e4555b0
      Ian Rogers authored
      Fix the PMU name, event code and umask.
      
      These updates were generated by:
      https://github.com/intel/perfmon/blob/main/scripts/create_perf_json.py
      with this PR:
      https://github.com/intel/perfmon/pull/66Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
      Link: https://lore.kernel.org/r/20230407001322.2776268-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      2e4555b0
    • Ian Rogers's avatar
      perf pmu: Sort and remove duplicates using JSON PMU name · 3f980eab
      Ian Rogers authored
      We may have a lot of copies of a particular uncore PMU, such as
      uncore_cha_0 to uncore_cha_59 on Intel sapphirerapids.
      
      The JSON events may match each of PMUs and so the events are copied to
      it.
      
      In 'perf list' this means we see the same JSON event 60 times as events
      on different PMUs don't have duplicates removed.
      
      There are 284 uncore_cha events on sapphirerapids.
      
      Rather than use the PMU's name to sort and remove duplicates, use the
      JSON PMU name.
      
      This reduces the 60 copies back down to 1 and has the side effect of
      speeding things like the "perf all PMU test" shell test.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Ravi Bangoria <ravi.bangoria@amd.com>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
      Link: https://lore.kernel.org/r/20230406235256.2768773-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      3f980eab
    • Ian Rogers's avatar
      perf pmu: Improve name/comments, avoid a memory allocation · 240e6fd0
      Ian Rogers authored
      Improve documentation around perf_pmu_alias pmu_name and on
      functions.
      
      Reduce the scope of pmu_uncore_alias_match to just file.
      
      Rename perf_pmu__valid_suffix to the more revealing
      perf_pmu__match_ignoring_suffix.
      
      Add a short-cut to perf_pmu__match_ignoring_suffix for PMU names that
      don't also have a socket value, and can therefore avoid a memory
      allocation.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Ravi Bangoria <ravi.bangoria@amd.com>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
      Link: https://lore.kernel.org/r/20230406235256.2768773-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      240e6fd0
    • Ian Rogers's avatar
      perf pmu: Fewer const casts · 330f40a0
      Ian Rogers authored
      struct pmu_event has const char*s, only unit needs to be non-const for
      the sake of passing as an out argument to strtod().
      
      Reduce the const casts from 4 down to 1.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Ravi Bangoria <ravi.bangoria@amd.com>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
      Link: https://lore.kernel.org/r/20230406235256.2768773-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      330f40a0
    • Namhyung Kim's avatar
      perf lock contention: Do not try to update if hash map is full · 222de5e5
      Namhyung Kim authored
      It doesn't delete data in the task_data and lock_stat maps.  The data
      is kept there until it's consumed by userspace at the end.  But it calls
      bpf_map_update_elem() again and again, and the data will be discarded if
      the map is full.  This is not good.
      
      Worse, in the bpf_map_update_elem(), it keeps trying to get a new node
      even if the map was full.  I guess it makes sense if it deletes some node
      like in the tstamp map (that's why I didn't make the change there).
      
      In a pre-allocated hash map, that means it'd iterate all CPU to check the
      freelist.  And it has a bad performance impact on large machines.
      
      I've checked it on my 64 CPU machine with this.
      
        $ perf bench sched messaging -g 1000
        # Running 'sched/messaging' benchmark:
        # 20 sender and receiver processes per group
        # 1000 groups == 40000 processes run
      
             Total time: 2.825 [sec]
      
      And I used the task mode, so that it can guarantee the map is full.
      The default map entry size is 16K and this workload has 40K tasks.
      
      Before:
        $ sudo ./perf lock con -abt -E3 -- perf bench sched messaging -g 1000
        # Running 'sched/messaging' benchmark:
        # 20 sender and receiver processes per group
        # 1000 groups == 40000 processes run
      
             Total time: 11.299 [sec]
         contended   total wait     max wait     avg wait          pid   comm
      
             19284      3.51 s       3.70 ms    181.91 us      1305863   sched-messaging
               243     84.09 ms    466.67 us    346.04 us      1336608   sched-messaging
               177     66.35 ms     12.08 ms    374.88 us      1220416   node
      
      For some reason, it didn't report the data failures.  But you can see the
      total time in the workload is increased a lot (2.8 -> 11.3).  If it fails
      early when the map is full, it goes back to normal.
      
      After:
        $ sudo ./perf lock con -abt -E3 -- perf bench sched messaging -g 1000
        # Running 'sched/messaging' benchmark:
        # 20 sender and receiver processes per group
        # 1000 groups == 40000 processes run
      
             Total time: 3.044 [sec]
         contended   total wait     max wait     avg wait          pid   comm
      
             18743    591.92 ms    442.96 us     31.58 us      1431454   sched-messaging
                51    210.64 ms    207.45 ms      4.13 ms      1468724   sched-messaging
                81     68.61 ms     65.79 ms    847.07 us      1463183   sched-messaging
      
        === output for debug ===
      
        bad: 1164137, total: 2253341
        bad rate: 51.66 %
        histogram of failure reasons
               task: 0
              stack: 0
               time: 0
               data: 1164137
      Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Acked-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Juri Lelli <juri.lelli@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Song Liu <song@kernel.org>
      Cc: bpf@vger.kernel.org
      Link: https://lore.kernel.org/r/20230406210611.1622492-2-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      222de5e5
    • Namhyung Kim's avatar
      perf lock contention: Revise needs_callstack() condition · 0fba2265
      Namhyung Kim authored
      It needs callstacks for two reasons:
      
       * for stack aggregation mode, the map key is the stack id and it can
         also show the full stack traces when -v is used
      
       * for other aggregation modes, the stack filter can be used to limit
         lock contentions from known call paths
      
      The -v option is meaningful (in terms of stack trace) only for stack
      aggregation mode, so it should not set the save_callstack for other
      mode like with -t or -l options.
      
      I've noticed this with the following command line:
      
        $ sudo ./perf lock con -ablv -E 3 -M 16 -- ./perf bench sched messaging
        ...
         contended   total wait     max wait     avg wait            address   symbol
      
                88      4.59 ms    108.07 us     52.13 us   ffff935757f46ec0    (spinlock)
                33    905.22 us     73.67 us     27.43 us   ffff935757f41700    (spinlock)
                28    703.69 us     79.28 us     25.13 us   ffff938a3d9b0c80   rq_lock (spinlock)
      
        === output for debug ===
      
        bad: 12272, total: 12421
        bad rate: 98.80 %
        histogram of failure reasons
               task: 8285
              stack: 3987    <---------- here
               time: 0
               data: 0
      
      It should not have any failure on stacks since it doesn't use it.
      No functional change intended.
      Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Acked-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Juri Lelli <juri.lelli@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Song Liu <song@kernel.org>
      Cc: bpf@vger.kernel.org
      Link: https://lore.kernel.org/r/20230406210611.1622492-2-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0fba2265
    • Namhyung Kim's avatar
      perf lock contention: Update total/bad stats for hidden entries · aae7e453
      Namhyung Kim authored
      When -E option is used, it only prints the given number of entries but
      the event stat at the end should have the numbers for entire entries.
      
      Likewise, -S option will hide entries that don't have the named
      function in the callstack.  Also update event stat for them.
      Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Acked-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Juri Lelli <juri.lelli@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Song Liu <song@kernel.org>
      Cc: bpf@vger.kernel.org
      Link: https://lore.kernel.org/r/20230406210611.1622492-2-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      aae7e453
    • Namhyung Kim's avatar
      perf lock contention: Add data failure stat · 954cdac7
      Namhyung Kim authored
      It's possible to fail to update the data when the lock_stat map is full.
      We should check that case and show the number at the end.
      
        $ sudo ./perf lock con -ablv -E3 -- ./perf bench sched messaging
        ...
         contended   total wait     max wait     avg wait            address   symbol
      
              6157    208.48 ms     69.29 us     33.86 us   ffff934c001c1f00    (spinlock)
              4030     72.04 ms     61.84 us     17.88 us   ffff934c000415c0    (spinlock)
              3201     50.30 ms     47.73 us     15.71 us   ffff934c2eead850    (spinlock)
      
        === output for debug ===
      
        bad: 0, total: 13388
        bad rate: 0.00 %
        histogram of failure reasons
               task: 0
              stack: 0
               time: 0
               data: 0      <----- added
      Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Acked-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Juri Lelli <juri.lelli@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Song Liu <song@kernel.org>
      Cc: bpf@vger.kernel.org
      Link: https://lore.kernel.org/r/20230406210611.1622492-2-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      954cdac7
    • Namhyung Kim's avatar
      perf lock contention: Update default map size to 16384 · 2d8d0165
      Namhyung Kim authored
      The BPF hash map will align the map size to a power of 2.  So 10k would
      be 16k anyway.  Let's have the actual size to avoid confusions.
      Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Acked-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Juri Lelli <juri.lelli@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Song Liu <song@kernel.org>
      Cc: bpf@vger.kernel.org
      Link: https://lore.kernel.org/r/20230406210611.1622492-2-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      2d8d0165
    • Namhyung Kim's avatar
      perf lock contention: Use -M for --map-nr-entries · 84b91920
      Namhyung Kim authored
      Users often want to change the map size, let's add a short option (-M)
      for that.
      Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Acked-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Juri Lelli <juri.lelli@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Song Liu <song@kernel.org>
      Cc: bpf@vger.kernel.org
      Link: https://lore.kernel.org/r/20230406210611.1622492-2-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      84b91920
    • Namhyung Kim's avatar
      perf lock contention: Simplify parse_lock_type() · d783ea8f
      Namhyung Kim authored
      The get_type_flag() should check both str and name fields in the
      lock_type_table so that it can find the appropriate flag without retrying
      with ':R' or ':W' suffix from the caller.
      
      Also fix a typo in the rt-mutex.
      Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Acked-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Juri Lelli <juri.lelli@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Song Liu <song@kernel.org>
      Cc: bpf@vger.kernel.org
      Link: https://lore.kernel.org/r/20230406210611.1622492-2-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      d783ea8f
    • Liam Howlett's avatar
      tools: Rename __fallthrough to fallthrough · f7a858bf
      Liam Howlett authored
      Rename the fallthrough attribute to better align with the kernel
      version.  Copy the definition from include/linux/compiler_attributes.h
      including the #else clause.  Adding the #else clause allows the tools
      compiler.h header to drop the check for a definition entirely and keeps
      both definitions together.
      
      Change any __fallthrough statements to fallthrough anywhere it was used
      within perf.
      
      This allows other tools to use the same key word as the kernel.
      
      Committer notes:
      
      Did some missing conversions to:
      
        builtin-list.c
      
      Also included gtk.h before the 'fallthrough' definition in:
      
        tools/perf/ui/gtk/hists.c
        tools/perf/ui/gtk/helpline.c
        tools/perf/ui/gtk/browser.c
      
      As it is the arg name for a macro in glib.h:
      
        /var/home/acme/git/perf-tools-next/tools/include/linux/compiler-gcc.h:16:55: error: missing binary operator before token "("
           16 | # define fallthrough                    __attribute__((__fallthrough__))
              |                                                       ^
        /usr/include/glib-2.0/glib/gmacros.h:637:28: note: in expansion of macro ‘fallthrough’
          637 | #if g_macro__has_attribute(fallthrough)
      Reviewed-by: default avatarMiguel Ojeda <ojeda@kernel.org>
      Signed-off-by: default avatarLiam Howlett <Liam.Howlett@oracle.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Miguel Ojeda <ojeda@kernel.org>
      Cc: Nathan Chancellor <nathan@kernel.org>
      Cc: Nick Desaulniers <ndesaulniers@google.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
      Cc: Tom Rix <trix@redhat.com>
      Cc: linux-sparse@vger.kernel.org <linux-sparse@vger.kernel.org>
      Cc: llvm@lists.linux.dev <llvm@lists.linux.dev>
      Link: https://lore.kernel.org/r/20221125154947.2163498-1-Liam.Howlett@oracle.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      f7a858bf
    • Ian Rogers's avatar
      perf pmu: Fix a few potential fd leaks · 0ea8920e
      Ian Rogers authored
      Ensure fd is closed on error paths.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
      Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Gaosheng Cui <cuigaosheng1@huawei.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Ravi Bangoria <ravi.bangoria@amd.com>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
      Link: https://lore.kernel.org/r/20230406065224.2553640-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0ea8920e
    • Ian Rogers's avatar
      perf pmu: Make parser reentrant · 3d88aec0
      Ian Rogers authored
      By default bison uses global state for compatibility with yacc. Make
      the parser reentrant so that it may be used in asynchronous and
      multithreaded situations.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Gaosheng Cui <cuigaosheng1@huawei.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Ravi Bangoria <ravi.bangoria@amd.com>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
      Link: https://lore.kernel.org/r/20230406065224.2553640-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      3d88aec0
  3. 04 Apr, 2023 6 commits
    • Ian Rogers's avatar
      perf map: Add accessor for start and end · e5116f46
      Ian Rogers authored
      Later changes will add reference count checking for struct map, start
      and end are frequently accessed variables. Add an accessor so that the
      reference count check is only necessary in one place.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230320212248.1175731-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      e5116f46
    • Ian Rogers's avatar
      perf map: Add accessor for dso · 63df0e4b
      Ian Rogers authored
      Later changes will add reference count checking for struct map, with
      dso being the most frequently accessed variable. Add an accessor so
      that the reference count check is only necessary in one place.
      
      Additional changes:
       - add a dso variable to avoid repeated map__dso calls.
       - in builtin-mem.c dump_raw_samples, code only partially tested for
         dso == NULL. Make the possibility of NULL consistent.
       - in thread.c thread__memcpy fix use of spaces and use tabs.
      
      Committer notes:
      
      Did missing conversions on these files:
      
         tools/perf/arch/powerpc/util/skip-callchain-idx.c
         tools/perf/arch/powerpc/util/sym-handling.c
         tools/perf/ui/browsers/hists.c
         tools/perf/ui/gtk/annotate.c
         tools/perf/util/cs-etm.c
         tools/perf/util/thread.c
         tools/perf/util/unwind-libunwind-local.c
         tools/perf/util/unwind-libunwind.c
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230320212248.1175731-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      63df0e4b
    • Ian Rogers's avatar
      perf maps: Add functions to access maps · 5ab6d715
      Ian Rogers authored
      Introduce functions to access struct maps. These functions reduce the
      number of places reference counting is necessary. While tidying APIs do
      some small const-ification, in particlar to unwind_libunwind_ops.
      
      Committer notes:
      
      Fixed up tools/perf/util/unwind-libunwind.c:
      
      -               return ops->get_entries(cb, arg, thread, data, max_stack);
      +               return ops->get_entries(cb, arg, thread, data, max_stack, best_effort);
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230320212248.1175731-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      5ab6d715
    • Ian Rogers's avatar
      perf maps: Remove rb_node from struct map · ff583dc4
      Ian Rogers authored
      struct map is reference counted, having it also be a node in an
      red-black tree complicates the reference counting. Switch to having a
      map_rb_node which is a red-block tree node but points at the reference
      counted struct map. This reference is responsible for a single reference
      count.
      
      Committer notes:
      
      Fixed up tools/perf/util/unwind-libunwind-local.c to use map_rb_node as
      well.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230320212248.1175731-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      ff583dc4
    • Ian Rogers's avatar
      perf map: Move map list node into symbol · 83720209
      Ian Rogers authored
      Using a perf map as a list node is only done in symbol. Move the
      list_node struct into symbol as a single pointer to the map. This makes
      reference count behavior more obvious and easy to check.
      
      Committer notes:
      
      Some changes to reduce the number of lines touched by keeping, for
      instance, the 'new_map' variable and setting it to new_node->map, so
      that we keep more of the project history in place and keep as much
      as possible the value of the 'git blame' tool.
      
      Also use map__zput() when putting a struct members, so that when we free
      the container struct we can get use-after-free errors as NULL pointer
      derefs sometimes.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Hao Luo <haoluo@google.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: John Garry <john.g.garry@oracle.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: https://lore.kernel.org/r/20230320212248.1175731-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      83720209
    • Ian Rogers's avatar
      perf jit: Fix a few memory leaks · dc67c783
      Ian Rogers authored
      As reported by leak sanitizer.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Brian Robbins <brianrob@linux.microsoft.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Yuan Can <yuancan@huawei.com>
      Link: https://lore.kernel.org/r/20230403203545.1872196-1-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      dc67c783