perf thread_map: Skip exited threads when scanning /proc

Scanning /proc is inherently racy. Scanning /proc/pid/task within that
is also racy as the pid can terminate. Rather than failing in
__thread_map__new_all_cpus, skip pids for such failures.

Signed-off-by: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Justin Stitt <[email protected]>
Cc: Bill Wendling <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Yang Jihong <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: [email protected]
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

0 files changed, 0 insertions, 0 deletions