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| author | Kan Liang <kan.liang@linux.intel.com> | 2018-03-06 10:36:01 -0500 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-03-08 10:05:50 -0300 |
| commit | 4fda3459e3c2e5ca35d304646aeeb811242537b2 (patch) | |
| tree | 597261427282b6cb14b87841cdd43d5590ea6191 /tools/perf/util/mmap.h | |
| parent | 2c5f6d876b4edda8740f5a2826cf9b1a67fa76fb (diff) | |
| download | linux-4fda3459e3c2e5ca35d304646aeeb811242537b2.tar.gz linux-4fda3459e3c2e5ca35d304646aeeb811242537b2.tar.xz | |
perf mmap: Store mmap scope in struct perf_mmap()
There is too much boilerplate in the perf_mmap__read*() interfaces.
The 'start' and 'end' variables should be stored in struct perf_mmap at
initialization. They will be used later.
The old 'startp' and 'endp' pointers are used by perf_mmap__read_event()
now. They cannot be removed. So the old 'startp/endp' and new
'md->start/md->end' will exist simultaneously now. The old one will be
removed later.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1520350567-80082-2-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/mmap.h')
| -rw-r--r-- | tools/perf/util/mmap.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h index 71137977af28..9359e934ab14 100644 --- a/tools/perf/util/mmap.h +++ b/tools/perf/util/mmap.h @@ -20,6 +20,8 @@ struct perf_mmap { int fd; refcount_t refcnt; u64 prev; + u64 start; + u64 end; bool overwrite; struct auxtrace_mmap auxtrace_mmap; char event_copy[PERF_SAMPLE_MAX_SIZE] __aligned(8); |