mm/memcontrol-v1.h

File Facts

System

Linux kernel

Corpus path

mm/memcontrol-v1.h

Extension

.h

Size

4792 bytes

Lines

132

Domain

Core OS

Bucket

Memory Management

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/cgroup-defs.h

Detected Declarations

• struct cgroup_taskset
• enum res_type
• function do_memsw_account
• function memcg1_soft_limit_reset
• function memcg1_tcpmem_active
• function memcg1_uncharge_skmem
• function do_memsw_account
• function memcg1_alloc_events
• function memcg1_free_events
• function memcg1_oom_finish
• function memcg1_charge_skmem
• function memcg1_uncharge_skmem

Annotated Snippet

static inline bool do_memsw_account(void) { return false; }
static inline bool memcg1_alloc_events(struct mem_cgroup *memcg) { return true; }
static inline void memcg1_free_events(struct mem_cgroup *memcg) {}

static inline void memcg1_memcg_init(struct mem_cgroup *memcg) {}
static inline void memcg1_remove_from_trees(struct mem_cgroup *memcg) {}
static inline void memcg1_soft_limit_reset(struct mem_cgroup *memcg) {}
static inline void memcg1_css_offline(struct mem_cgroup *memcg) {}

static inline bool memcg1_oom_prepare(struct mem_cgroup *memcg, bool *locked) { return true; }
static inline void memcg1_oom_finish(struct mem_cgroup *memcg, bool locked) {}
static inline void memcg1_oom_recover(struct mem_cgroup *memcg) {}

static inline void memcg1_commit_charge(struct folio *folio,
					struct mem_cgroup *memcg) {}

static inline void memcg1_uncharge_batch(struct mem_cgroup *memcg,
					 unsigned long pgpgout,
					 unsigned long nr_memory, int nid) {}

static inline void memcg1_stat_format(struct mem_cgroup *memcg, struct seq_buf *s) {}

static inline void memcg1_account_kmem(struct mem_cgroup *memcg, int nr_pages) {}
static inline bool memcg1_tcpmem_active(struct mem_cgroup *memcg) { return false; }
static inline bool memcg1_charge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages,
				       gfp_t gfp_mask) { return true; }
static inline void memcg1_uncharge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages) {}

#endif	/* CONFIG_MEMCG_V1 */

#endif	/* __MM_MEMCONTROL_V1_H */

Annotation

• Immediate include surface: `linux/cgroup-defs.h`.
• Detected declarations: `struct cgroup_taskset`, `enum res_type`, `function do_memsw_account`, `function memcg1_soft_limit_reset`, `function memcg1_tcpmem_active`, `function memcg1_uncharge_skmem`, `function do_memsw_account`, `function memcg1_alloc_events`, `function memcg1_free_events`, `function memcg1_oom_finish`.
• Atlas domain: Core OS / Memory Management.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.