linux-stable/kernel/cgroup
Tejun Heo 0d2b5955b3 cgroup: Allocate cgroup_file_ctx for kernfs_open_file->priv
of->priv is currently used by each interface file implementation to store
private information. This patch collects the current two private data usages
into struct cgroup_file_ctx which is allocated and freed by the common path.
This allows generic private data which applies to multiple files, which will
be used to in the following patch.

Note that cgroup_procs iterator is now embedded as procs.iter in the new
cgroup_file_ctx so that it doesn't need to be allocated and freed
separately.

v2: union dropped from cgroup_file_ctx and the procs iterator is embedded in
    cgroup_file_ctx as suggested by Linus.

v3: Michal pointed out that cgroup1's procs pidlist uses of->priv too.
    Converted. Didn't change to embedded allocation as cgroup1 pidlists get
    stored for caching.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Michal Koutný <mkoutny@suse.com>
2022-01-06 11:02:29 -10:00
..
cgroup-internal.h cgroup: Allocate cgroup_file_ctx for kernfs_open_file->priv 2022-01-06 11:02:29 -10:00
cgroup-v1.c cgroup: Allocate cgroup_file_ctx for kernfs_open_file->priv 2022-01-06 11:02:29 -10:00
cgroup.c cgroup: Allocate cgroup_file_ctx for kernfs_open_file->priv 2022-01-06 11:02:29 -10:00
cpuset.c mm/page_alloc: detect allocation forbidden by cpuset and bail out early 2021-11-06 13:30:38 -07:00
debug.c kernel: cgroup: fix misuse of %x 2019-05-06 08:47:48 -07:00
freezer.c cgroup: freezer: don't change task and cgroups status unnecessarily 2019-11-07 07:38:41 -08:00
legacy_freezer.c cgroup: rename freezer.c into legacy_freezer.c 2019-04-19 11:26:48 -07:00
Makefile cgroup: Add misc cgroup controller 2021-04-04 13:34:46 -04:00
misc.c misc_cgroup: remove error log to avoid log flood 2021-09-20 07:35:38 -10:00
namespace.c memcg: enable accounting for new namesapces and struct nsproxy 2021-09-03 09:58:12 -07:00
pids.c clone3: allow spawning processes into cgroups 2020-02-12 17:57:51 -05:00
rdma.c cgroup: fix spelling mistakes 2021-05-24 12:45:26 -04:00
rstat.c cgroup: Fix rootcg cpu.stat guest double counting 2021-11-01 06:47:08 -10:00