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authorYannick Brosseau <scientist@fb.com>2015-11-26 03:42:32 -0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-11-26 14:08:17 -0300
commitb2be5451f660e0ee230969cc24121d9e210a91de (patch)
treef85934b11bfd49342fc6193e26e124d415a08380 /tools/perf/util/map.c
parentc03d5184f0e92fa696e4b57f54ffc3b19a92f704 (diff)
perf tools: Correctly identify anon_hugepage when generating map (v2)
When parsing /proc/xxx/maps, the sscanf in perf_event__synthesize_mmap_events truncate the map name at the space in "/anon_hugepage (deleted)". is_anon_memory() then only receives the string "/anon_hugepage" and does not detect it. We change is_anon_memory() to only compare the first part of the string, effectively ignoring if " (deleted)" is there. Signed-off-by: Yannick Brosseau <scientist@fb.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Joshua Zhu <zhu.wen-jie@hp.com> Cc: kernel-team@fb.com Link: http://lkml.kernel.org/r/1448538152-2898-1-git-send-email-scientist@fb.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/map.c')
-rw-r--r--tools/perf/util/map.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index afc6b56cf749..93d9f1ce3baa 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -26,8 +26,8 @@ const char *map_type__name[MAP__NR_TYPES] = {
static inline int is_anon_memory(const char *filename)
{
return !strcmp(filename, "//anon") ||
- !strcmp(filename, "/dev/zero (deleted)") ||
- !strcmp(filename, "/anon_hugepage (deleted)");
+ !strncmp(filename, "/dev/zero", sizeof("/dev/zero") - 1) ||
+ !strncmp(filename, "/anon_hugepage", sizeof("/anon_hugepage") - 1);
}
static inline int is_no_dso_memory(const char *filename)