[dm-devel] [PATCH 00/23] libmultipath: improve cleanup on exit

[mwilck at suse.com]

From: Martin Wilck <mwilck at suse.com>

Hi Christophe, hi Ben, hi lixiaokeng,

this series was inspired by lixiaokeng's recent posting "[QUESTION] memory
leak in main (multipath)". It implements my first idea, registering
cleanup handlers with atexit(). However it turned out to be quite
complex. In particular multipathd has a lot of things to clean up.

This series is based on the previous series "multipath-tools: shutdown, 
libdevmapper races, globals".

While the bulk of the series is the cleanup handling, it also contains
some bug fixes for issues that I found while working on this.

Regards
Martin

Martin Wilck (23):
  multipathd: uxlsnr: avoid deadlock on exit
  multipathd: Fix liburcu memory leak
  multipathd: move handling of io_err_stat_attr into libmultipath
  multipathd: move vecs desctruction into cleanup function
  multipathd: make some globals static
  multipathd: move threads destruction into separate function
  multipathd: move conf destruction into separate function
  multipathd: move pid destruction into separate function
  multipathd: close pidfile on exit
  multipathd: add helper for systemd notification at exit
  multipathd: child(): call cleanups in failure case, too
  multipathd: unwatch_all_dmevents: check if waiter is initialized
  multipathd: print error message if config can't be loaded
  libmultipath: add libmp_dm_exit()
  multipathd: fixup libdm deinitialization
  libmultipath: log_thread_stop(): check if logarea is initialized
  multipathd: add cleanup_child() exit handler
  libmultipath: fix log_thread startup and teardown
  multipathd: move cleanup_{prio,checkers,foreign} to libmultipath_exit
  multipath: use atexit() for cleanup handlers
  mpathpersist: use atexit() for cleanup handlers
  multipath: fix leaks in check_path_valid()
  multipath-tools: mpath-tools.supp: file with valgrind suppressions

 libmpathpersist/mpath_persist.c       |   2 -
 libmultipath/config.c                 |   5 +
 libmultipath/config.h                 |   2 +
 libmultipath/devmapper.c              |  10 +
 libmultipath/devmapper.h              |   1 +
 libmultipath/io_err_stat.c            |   7 +-
 libmultipath/libmultipath.version     |  26 +--
 libmultipath/log_pthread.c            |  60 +++--
 mpathpersist/main.c                   |   5 +-
 multipath/main.c                      |  94 +++++---
 multipathd/dmevents.c                 |   2 +
 multipathd/main.c                     | 305 +++++++++++++++++---------
 multipathd/uxlsnr.c                   |  17 +-
 third-party/valgrind/mpath-tools.supp |  33 +++
 14 files changed, 389 insertions(+), 180 deletions(-)
 create mode 100644 third-party/valgrind/mpath-tools.supp

-- 
2.28.0