iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

perf dso: Add dso__filename_with_chroot() to reduce number of accesses to dso->nsinfo members

Browse Source 
We'll need to reference count dso->nsinfo, so reduce the number of
direct accesses by having a shorter form of obtaining a filename with
a chroot (namespace one).

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Link: https://lore.kernel.org/lkml/ZD26ZlqSbgSyH5lX@kernel.org
[ Used nsinfo__pid(dso->nsinfo), as it was already present ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2023-04-17 18:28:01 -03:00
parent da885a0e5e
commit 7031edac9d
6 changed files with 12 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
tools/perf/builtin-inject.c
View File

@ -630,10 +630,8 @@ static int dso__read_build_id(struct dso *dso)
if (filename__read_build_id(dso->long_name, &dso->bid) > 0)
dso->has_build_id = true;
else if (dso->nsinfo) {
char *new_name;
char *new_name = dso__filename_with_chroot(dso, dso->long_name);
new_name = filename_with_chroot(dso->nsinfo->pid,
dso->long_name);
if (new_name && filename__read_build_id(new_name, &dso->bid) > 0)
dso->has_build_id = true;
free(new_name);