From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Joshua Zhu , Akihiro Nagai , Andi Kleen , David Ahern , Ingo Molnar , Jiri Olsa , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Vinson Lee , Arnaldo Carvalho de Melo Subject: [ 12/12] perf tools: Add anonymous huge page recognition Date: Mon, 12 Aug 2013 23:35:47 -0700 Message-Id: <20130813063521.259105011@linuxfoundation.org> In-Reply-To: <20130813063520.285638946@linuxfoundation.org> References: <20130813063520.285638946@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Joshua Zhu 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 Cc: Akihiro Nagai Cc: Andi Kleen Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Joshua Zhu Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Vinson Lee Link: http://lkml.kernel.org/r/1357363797-3550-1-git-send-email-zhu.wen-jie@hp.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/map.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- 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)"); } void map__init(struct map *self, enum map_type type,