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| author | Joshua Zhu <zhu.wen-jie@hp.com> | 2013-01-05 13:29:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-14 22:57:08 -0700 |
| commit | 03bca23ea4b01bf4fecbe6b66ae36a2a3e08c009 (patch) | |
| tree | 82a514f1c7ebd2ca6381a3285fade9192ef6b33c | |
| parent | 7a0117d324b902737efa1ce7e26052d475b6649b (diff) | |
| download | lwn-03bca23ea4b01bf4fecbe6b66ae36a2a3e08c009.tar.gz lwn-03bca23ea4b01bf4fecbe6b66ae36a2a3e08c009.zip | |
perf tools: Add anonymous huge page recognition
commit d0528b5d71faf612014dd7672e44225c915344b2 upstream.
Judging anonymous memory's vm_area_struct, perf_mmap_event's filename
will be set to "//anon" indicating this vma belongs to anonymous
memory.
Once hugepage is used, vma's vm_file points to hugetlbfs. In this way,
this vma will not be regarded as anonymous memory by is_anon_memory() in
perf user space utility.
Signed-off-by: Joshua Zhu <zhu.wen-jie@hp.com>
Cc: Akihiro Nagai <akihiro.nagai.hw@hitachi.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joshua Zhu <zhu.wen-jie@hp.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Vinson Lee <vlee@freedesktop.org>
Link: http://lkml.kernel.org/r/1357363797-3550-1-git-send-email-zhu.wen-jie@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | tools/perf/util/map.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 35ae56864e4f..9593f2772c64 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -15,7 +15,8 @@ const char *map_type__name[MAP__NR_TYPES] = { static inline int is_anon_memory(const char *filename) { - return strcmp(filename, "//anon") == 0; + return !strcmp(filename, "//anon") || + !strcmp(filename, "/anon_hugepage (deleted)"); } static inline int is_no_dso_memory(const char *filename) |