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perf buildid-cache: Do not require purge files to also be in the file system 

realname() returns NULL if the file is not in the file system, but we can
still remove it from the build ID cache in that case, so continue and
attempt the purge with the name provided.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kvm@vger.kernel.org
Link: https://lore.kernel.org/r/20220711093218.10967-10-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2022-07-11 12:31:52 +03:00 committed by Arnaldo Carvalho de Melo
parent 15fe03621d
commit c1fd5b7d8a
1 changed files with 2 additions and 5 deletions
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7
tools/perf/util/build-id.c
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@ -561,14 +561,11 @@ char *build_id_cache__cachedir(const char *sbuild_id, const char *name,
char *realname = (char *)name, *filename;
bool slash = is_kallsyms || is_vdso;
if (!slash) {
if (!slash)
realname = nsinfo__realpath(name, nsi);
if (!realname)
return NULL;
}
if (asprintf(&filename, "%s%s%s%s%s", buildid_dir, slash ? "/" : "",
is_vdso ? DSO__NAME_VDSO : realname,
is_vdso ? DSO__NAME_VDSO : (realname ? realname : name),
sbuild_id ? "/" : "", sbuild_id ?: "") < 0)
filename = NULL;