OpenCloudOS-Kernel/kernel/cgroup
Johannes Weiner dc50537bdd kernel: cgroup: add poll file operation
Cgroup has a standardized poll/notification mechanism for waking all
pollers on all fds when a filesystem node changes.  To allow polling for
custom events, add a .poll callback that can override the default.

This is in preparation for pollable cgroup pressure files which have
per-fd trigger configurations.

Link: http://lkml.kernel.org/r/20190124211518.244221-3-surenb@google.com
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-05 21:07:17 -08:00
..
Makefile cgroup: Rename kernel/cgroup/stat.c to kernel/cgroup/rstat.c 2018-04-26 14:29:04 -07:00
cgroup-internal.h cgroup: saner refcounting for cgroup_root 2019-01-17 11:53:02 -05:00
cgroup-v1.c cgroup: saner refcounting for cgroup_root 2019-01-17 11:53:02 -05:00
cgroup.c kernel: cgroup: add poll file operation 2019-03-05 21:07:17 -08:00
cpuset.c Merge branch 'for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2018-12-29 10:57:20 -08:00
debug.c cpuset: Expose cpuset.cpus.subpartitions with cgroup_debug 2018-11-08 12:27:32 -08:00
freezer.c cgroup: add @flags to css_task_iter_start() and implement CSS_TASK_ITER_PROCS 2017-07-21 11:14:51 -04:00
namespace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pids.c cgroup: implement cgroup v2 thread support 2017-07-21 11:14:51 -04:00
rdma.c rdmacg: Convert to use match_string() helper 2018-05-07 09:27:26 -07:00
rstat.c cgroup: Make cgroup_rstat_updated() ready for root cgroup usage 2018-04-26 14:29:06 -07:00