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authorJoshua Zhu <zhu.wen-jie@hp.com>2013-01-05 13:29:57 +0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-01-24 16:40:19 -0300
commitd0528b5d71faf612014dd7672e44225c915344b2 (patch)
tree47544384b4e3950686cddbe19fbd61d87118bd0d
parent9b494ea2f5638184bc203a30062b32b9a9a05d9e (diff)
perf tools: Add anonymous huge page recognition
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>
-rw-r--r--tools/perf/util/map.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 0328d45c4f2a..ff94425779a2 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -19,7 +19,8 @@ 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)