| From | Luis Henriques <> | Subject | [PATCH 50/75] perf tools: Add anonymous huge page recognition | Date | Wed, 14 Aug 2013 11:36:39 +0100 |
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3.5.7.19 -stable review patch. If anyone has any objections, please let me know.
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From: Joshua Zhu <zhu.wen-jie@hp.com>
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> 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> Cc: Vinson Lee <vlee@freedesktop.org> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- tools/perf/util/map.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index a1f4e36..81072b6 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) -- 1.8.3.2
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