lib/lwq.c
Source file repositories/reference/linux-study-clean/lib/lwq.c
File Facts
- System
- Linux kernel
- Corpus path
lib/lwq.c- Extension
.c- Size
- 3683 bytes
- Lines
- 159
- Domain
- Kernel Services
- Bucket
- lib
- Inferred role
- Kernel Services: exported/initcall integration point
- Status
- integration implementation candidate
Why This File Exists
Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.
- Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- 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/rcupdate.hlinux/lwq.hlinux/module.hlinux/slab.hlinux/wait_bit.hlinux/kthread.hlinux/delay.h
Detected Declarations
struct tnodefunction lwq_exercisefunction lwq_testmodule init lwq_testexport __lwq_dequeueexport lwq_dequeue_all
Annotated Snippet
module_init(lwq_test);
#endif /* CONFIG_LWQ_TEST*/Annotation
- Immediate include surface: `linux/rcupdate.h`, `linux/lwq.h`, `linux/module.h`, `linux/slab.h`, `linux/wait_bit.h`, `linux/kthread.h`, `linux/delay.h`.
- Detected declarations: `struct tnode`, `function lwq_exercise`, `function lwq_test`, `module init lwq_test`, `export __lwq_dequeue`, `export lwq_dequeue_all`.
- Atlas domain: Kernel Services / lib.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
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.