mm/dmapool_test.c
Source file repositories/reference/linux-study-clean/mm/dmapool_test.c
File Facts
- System
- Linux kernel
- Corpus path
mm/dmapool_test.c- Extension
.c- Size
- 3030 bytes
- Lines
- 150
- 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/device.hlinux/dma-map-ops.hlinux/dma-mapping.hlinux/dmapool.hlinux/kernel.hlinux/ktime.hlinux/module.h
Detected Declarations
struct dma_pool_pairstruct dmapool_parmsfunction nr_blocksfunction dmapool_test_allocfunction dmapool_test_blockfunction dmapool_test_releasefunction dmapool_exitmodule init dmapool_checks
Annotated Snippet
module_init(dmapool_checks);
module_exit(dmapool_exit);
MODULE_DESCRIPTION("dma_pool timing test");
MODULE_LICENSE("GPL");Annotation
- Immediate include surface: `linux/device.h`, `linux/dma-map-ops.h`, `linux/dma-mapping.h`, `linux/dmapool.h`, `linux/kernel.h`, `linux/ktime.h`, `linux/module.h`.
- Detected declarations: `struct dma_pool_pair`, `struct dmapool_parms`, `function nr_blocks`, `function dmapool_test_alloc`, `function dmapool_test_block`, `function dmapool_test_release`, `function dmapool_exit`, `module init dmapool_checks`.
- 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.