diff options
| author | Roman Gushchin <roman.gushchin@linux.dev> | 2024-07-26 20:31:09 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-09-01 20:25:51 -0700 |
| commit | 941ce635234162c420c9185816c59f7d5dd1ad07 (patch) | |
| tree | 1ea4103c14cfc0a75a82be650f7fc8a201a74dde /include/linux | |
| parent | f77bd4b14ccfd38dfcfe67eecad517b8ec1b7f37 (diff) | |
mm: page_counters: put page_counter_calculate_protection() under CONFIG_MEMCG
Put page_counter_calculate_protection() under CONFIG_MEMCG.
The protection functionality (min/low limits) is not supported by any
other cgroup subsystem, so page_counter_calculate_protection() and related
static effective_protection() can be compiled out if CONFIG_MEMCG is not
enabled.
Link: https://lkml.kernel.org/r/20240726203110.1577216-3-roman.gushchin@linux.dev
Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/page_counter.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/page_counter.h b/include/linux/page_counter.h index 0b8e993f9163..1b3e92c09b80 100644 --- a/include/linux/page_counter.h +++ b/include/linux/page_counter.h @@ -87,8 +87,14 @@ static inline void page_counter_reset_watermark(struct page_counter *counter) counter->watermark = page_counter_read(counter); } +#ifdef CONFIG_MEMCG void page_counter_calculate_protection(struct page_counter *root, struct page_counter *counter, bool recursive_protection); +#else +static inline void page_counter_calculate_protection(struct page_counter *root, + struct page_counter *counter, + bool recursive_protection) {} +#endif #endif /* _LINUX_PAGE_COUNTER_H */ |