DAMON core structs hide core-private fields using 'private:' comment
tags.  It is incomplete and inconsistent.  The linked list heads in a
few structs, for example, are intended to be hidden, and always be used
using the wrapper macros like damon_for_each_region().  But those were
mistakenly marked as non-private.  A few core layer-only fields were
also mistakenly added as non-private.

This only encourages callers to directly use the private fields.  It is
easy to make mistakes, and difficult to control.  Mark all such DAMON
core struct fields as private.

Patches 1-8 mark the private fields for damon_region, damon_target,
damos_quota_goal, damos_quota, damos_filter, damos, damon_filter and
damon_probe, respectively.  Patch 9 removes DAMON_SYSFS's direct access
to core-private field, damon_ctx->ops.  Finally patch 10 mark the
private fields for damon_ctx.

SJ Park (10):
  mm/damon/core: hide private damon_region fields
  mm/damon/core: hide private damon_target fields
  mm/damon/core: hide private damos_quota_goal fields
  mm/damon/core: hide private damos_quota fields
  mm/damon/core: hide private damos_filter fields
  mm/damon/core: hide private damos fields
  mm/damon/core: hide private damon_filter fields
  mm/damon/core: hide private damon_probe fields
  mm/damon/sysfs: do not directly access damon_ctx->ops
  mm/damon/core: hide core-private damon_ctx fields

 include/linux/damon.h | 110 +++++++++++++++++++++++-------------------
 mm/damon/sysfs.c      |   2 +-
 2 files changed, 62 insertions(+), 50 deletions(-)


base-commit: ddf3f75c217672edd46466c9156d64abf5119b68
-- 
2.47.3