kernel/locking/test-ww_mutex.c

File Facts

System

Linux kernel

Corpus path

kernel/locking/test-ww_mutex.c

Extension

.c

Size

16005 bytes

Lines

778

Domain

Core OS

Bucket

Scheduler, Processes, Timers, Sync, And Syscalls

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.
• 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/kernel.h
• linux/completion.h
• linux/delay.h
• linux/kthread.h
• linux/module.h
• linux/prandom.h
• linux/slab.h
• linux/ww_mutex.h

Detected Declarations

• struct test_mutex
• struct test_abba
• struct test_cycle
• struct stress
• struct reorder_lock
• function test_mutex_work
• function __test_mutex
• function test_mutex
• function test_aa
• function test_abba_work
• function test_abba
• function test_cycle_work
• function __test_cycle
• function test_cycle
• function prandom_u32_below
• function dummy_load
• function stress_inorder_work
• function stress_reorder_work
• function list_for_each_entry
• function stress_one_work
• function stress
• function run_tests
• function run_test_classes
• function run_tests_store
• function test_ww_mutex_init
• function test_ww_mutex_exit
• module init test_ww_mutex_init

Annotated Snippet

module_init(test_ww_mutex_init);
module_exit(test_ww_mutex_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Intel Corporation");
MODULE_DESCRIPTION("API test facility for ww_mutexes");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/completion.h`, `linux/delay.h`, `linux/kthread.h`, `linux/module.h`, `linux/prandom.h`, `linux/slab.h`, `linux/ww_mutex.h`.
• Detected declarations: `struct test_mutex`, `struct test_abba`, `struct test_cycle`, `struct stress`, `struct reorder_lock`, `function test_mutex_work`, `function __test_mutex`, `function test_mutex`, `function test_aa`, `function test_abba_work`.
• Atlas domain: Core OS / Scheduler, Processes, Timers, Sync, And Syscalls.
• 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.