This patchset makes the OOM killer cgroup-aware. v8: - Do not kill tasks with OOM_SCORE_ADJ -1000 - Make the whole thing opt-in with cgroup mount option control - Drop oom_priority for further discussions - Kill the whole cgroup if oom_group is set and it's memory.max is reached - Update docs and commit messages
v7: - __oom_kill_process() drops reference to the victim task - oom_score_adj -1000 is always respected - Renamed oom_kill_all to oom_group - Dropped oom_prio range, converted from short to int - Added a cgroup v2 mount option to disable cgroup-aware OOM killer - Docs updated - Rebased on top of mmotm v6: - Renamed oom_control.chosen to oom_control.chosen_task - Renamed oom_kill_all_tasks to oom_kill_all - Per-node NR_SLAB_UNRECLAIMABLE accounting - Several minor fixes and cleanups - Docs updated v5: - Rebased on top of Michal Hocko's patches, which have changed the way how OOM victims becoming an access to the memory reserves. Dropped corresponding part of this patchset - Separated the oom_kill_process() splitting into a standalone commit - Added debug output (suggested by David Rientjes) - Some minor fixes v4: - Reworked per-cgroup oom_score_adj into oom_priority (based on ideas by David Rientjes) - Tasks with oom_score_adj -1000 are never selected if oom_kill_all_tasks is not set - Memcg victim selection code is reworked, and synchronization is based on finding tasks with OOM victim marker, rather then on global counter - Debug output is dropped - Refactored TIF_MEMDIE usage v3: - Merged commits 1-4 into 6 - Separated oom_score_adj logic and debug output into separate commits - Fixed swap accounting v2: - Reworked victim selection based on feedback from Michal Hocko, Vladimir Davydov and Johannes Weiner - "Kill all tasks" is now an opt-in option, by default only one process will be killed - Added per-cgroup oom_score_adj - Refined oom score calculations, suggested by Vladimir Davydov - Converted to a patchset v1: https://lkml.org/lkml/2017/5/18/969 Cc: Michal Hocko <mho...@kernel.org> Cc: Vladimir Davydov <vdavydov....@gmail.com> Cc: Johannes Weiner <han...@cmpxchg.org> Cc: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> Cc: David Rientjes <rient...@google.com> Cc: Andrew Morton <a...@linux-foundation.org> Cc: Tejun Heo <t...@kernel.org> Cc: kernel-t...@fb.com Cc: cgro...@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: linux-ker...@vger.kernel.org Cc: linux...@kvack.org Roman Gushchin (4): mm, oom: refactor the oom_kill_process() function mm, oom: cgroup-aware OOM killer mm, oom: add cgroup v2 mount option for cgroup-aware OOM killer mm, oom, docs: describe the cgroup-aware OOM killer Documentation/cgroup-v2.txt | 39 +++++++ include/linux/cgroup-defs.h | 5 + include/linux/memcontrol.h | 33 ++++++ include/linux/oom.h | 12 +- kernel/cgroup/cgroup.c | 10 ++ mm/memcontrol.c | 261 ++++++++++++++++++++++++++++++++++++++++++++ mm/oom_kill.c | 210 +++++++++++++++++++++++------------ 7 files changed, 501 insertions(+), 69 deletions(-) -- 2.13.5 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html