mm/page_idle.c
Source file repositories/reference/linux-study-clean/mm/page_idle.c
File Facts
- System
- Linux kernel
- Corpus path
mm/page_idle.c- Extension
.c- Size
- 5814 bytes
- Lines
- 226
- Domain
- Core OS
- Bucket
- Memory Management
- Inferred role
- Core OS: exported/initcall integration point
- Status
- integration 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.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/init.hlinux/memblock.hlinux/fs.hlinux/sysfs.hlinux/kobject.hlinux/memory_hotplug.hlinux/mm.hlinux/mmzone.hlinux/pagemap.hlinux/rmap.hlinux/mmu_notifier.hlinux/page_ext.hlinux/page_idle.hinternal.h
Detected Declarations
function rmap_walkfunction page_idle_clear_pte_refs_onefunction page_idle_clear_pte_refsfunction page_idle_bitmap_readfunction page_idle_bitmap_writefunction page_idle_initmodule init page_idle_init
Annotated Snippet
subsys_initcall(page_idle_init);Annotation
- Immediate include surface: `linux/init.h`, `linux/memblock.h`, `linux/fs.h`, `linux/sysfs.h`, `linux/kobject.h`, `linux/memory_hotplug.h`, `linux/mm.h`, `linux/mmzone.h`.
- Detected declarations: `function rmap_walk`, `function page_idle_clear_pte_refs_one`, `function page_idle_clear_pte_refs`, `function page_idle_bitmap_read`, `function page_idle_bitmap_write`, `function page_idle_init`, `module init page_idle_init`.
- Atlas domain: Core OS / Memory Management.
- Implementation status: integration 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.