This patch series is mostly based on Konstantin's patches which he had sent years ago [1]. This functionality still seems very useful for debugging the difference between entities in cgroupfs and counters in /proc/cgroups, e.g. searching for files that have page cache which prevents destruction of memcg. I saw the comments in the original thread but didn't understand the Tejun's comment about usage of filehandle instead of ino. Also I saved the original output format in debugfs with extra counters. We can rework this format in the future but now it seems straightforward for just filtering through cmdline utilities. [1] https://lore.kernel.org/lkml/153414348591.737150.14229960913953276515.stgit@buzz/ Dmitry Yakunin (3): cgroup: list all subsystem states in debugfs files proc/kpagecgroup: report also inode numbers of offline cgroups tools/mm/page-types: add flag for showing inodes of offline cgroups fs/proc/page.c | 24 ++++++++- include/linux/cgroup-defs.h | 1 + include/linux/memcontrol.h | 2 +- kernel/cgroup/cgroup.c | 101 ++++++++++++++++++++++++++++++++++++ mm/memcontrol.c | 19 ++++++- mm/memory-failure.c | 2 +- tools/mm/page-types.c | 18 ++++++- 7 files changed, 159 insertions(+), 8 deletions(-) -- 2.25.1
