arch/x86/mm/pat/cpa-test.c
Source file repositories/reference/linux-study-clean/arch/x86/mm/pat/cpa-test.c
File Facts
- System
- Linux kernel
- Corpus path
arch/x86/mm/pat/cpa-test.c- Extension
.c- Size
- 5769 bytes
- Lines
- 278
- Domain
- Architecture Layer
- Bucket
- arch/x86
- Inferred role
- Architecture Layer: exported/initcall integration point
- Status
- integration implementation candidate
Why This File Exists
CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- 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/memblock.hlinux/kthread.hlinux/random.hlinux/kernel.hlinux/init.hlinux/mm.hlinux/vmalloc.hasm/cacheflush.hasm/kdebug.h
Detected Declarations
struct split_statefunction pte_testbitfunction print_splitfunction pageattr_testfunction do_pageattr_testfunction start_pageattr_testmodule init start_pageattr_test
Annotated Snippet
device_initcall(start_pageattr_test);Annotation
- Immediate include surface: `linux/memblock.h`, `linux/kthread.h`, `linux/random.h`, `linux/kernel.h`, `linux/init.h`, `linux/mm.h`, `linux/vmalloc.h`, `asm/cacheflush.h`.
- Detected declarations: `struct split_state`, `function pte_testbit`, `function print_split`, `function pageattr_test`, `function do_pageattr_test`, `function start_pageattr_test`, `module init start_pageattr_test`.
- Atlas domain: Architecture Layer / arch/x86.
- 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.