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| author | Roman Gushchin <roman.gushchin@linux.dev> | 2024-06-25 02:59:00 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-07-05 03:05:53 +0200 |
| commit | 292fc2e0204aa02a24f6d2684d71801068fec803 (patch) | |
| tree | 505b4d81271bb9e8f12b7751599ba3968757bbd9 /mm/memcontrol-v1.h | |
| parent | mm: memcg: rename memcg_check_events() (diff) | |
| download | linux-292fc2e0204aa02a24f6d2684d71801068fec803.tar.xz linux-292fc2e0204aa02a24f6d2684d71801068fec803.zip | |
mm: memcg: move cgroup v1 oom handling code into memcontrol-v1.c
Cgroup v1 supports a complicated OOM handling in userspace mechanism,
which is not supported by cgroup v2. Let's move the corresponding code
into memcontrol-v1.c.
Aside from mechanical code movement this patch introduces two new
functions: memcg1_oom_prepare() and memcg1_oom_finish(). Those are
implementing cgroup v1-specific parts of the common memcg OOM handling
path.
Link: https://lkml.kernel.org/r/20240625005906.106920-9-roman.gushchin@linux.dev
Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muchun Song <muchun.song@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol-v1.h')
| -rw-r--r-- | mm/memcontrol-v1.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/memcontrol-v1.h b/mm/memcontrol-v1.h index ef1b7037cbdc..3de956b2422f 100644 --- a/mm/memcontrol-v1.h +++ b/mm/memcontrol-v1.h @@ -87,9 +87,10 @@ enum res_type { bool mem_cgroup_event_ratelimit(struct mem_cgroup *memcg, enum mem_cgroup_events_target target); unsigned long mem_cgroup_usage(struct mem_cgroup *memcg, bool swap); -void mem_cgroup_oom_notify(struct mem_cgroup *memcg); ssize_t memcg_write_event_control(struct kernfs_open_file *of, char *buf, size_t nbytes, loff_t off); +bool memcg1_oom_prepare(struct mem_cgroup *memcg, bool *locked); +void memcg1_oom_finish(struct mem_cgroup *memcg, bool locked); #endif /* __MM_MEMCONTROL_V1_H */ |