mm: memcg: put struct task_struct::in_user_fault under CONFIG_MEMCG_V1

The struct task_struct's in_user_fault member is not used by the cgroup
v2's memory controller, so it can be put under the CONFIG_MEMCG_V1 config
option.  To do so, mem_cgroup_enter_user_fault() and
mem_cgroup_exit_user_fault() are moved under the CONFIG_MEMCG_V1 option as
well.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Roman Gushchin <[email protected]>
Acked-by: Shakeel Butt <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Muchun Song <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions