lib/test_vmalloc.c

File Facts

System

Linux kernel

Corpus path

lib/test_vmalloc.c

Extension

.c

Size

13977 bytes

Lines

707

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/init.h
• linux/kernel.h
• linux/module.h
• linux/vmalloc.h
• linux/random.h
• linux/kthread.h
• linux/moduleparam.h
• linux/completion.h
• linux/delay.h
• linux/mm.h
• linux/rcupdate.h
• linux/srcu.h
• linux/slab.h

Detected Declarations

• struct test_kvfree_rcu
• struct test_case_desc
• struct test_case_data
• function test_report_one_done
• function random_size_align_alloc_test
• function align_shift_alloc_test
• function fix_align_alloc_test
• function random_size_alloc_test
• function long_busy_list_alloc_test
• function full_fit_alloc_test
• function fix_size_alloc_test
• function no_block_alloc_test
• function pcpu_alloc_test
• function kvfree_rcu_1_arg_vmalloc_test
• function kvfree_rcu_2_arg_vmalloc_test
• function vm_map_ram_test
• function vrealloc_test
• function shuffle_array
• function test_func
• function init_test_configuration
• function do_concurrent_test
• function vmalloc_test_init
• module init vmalloc_test_init

Annotated Snippet

module_init(vmalloc_test_init)
#else
late_initcall(vmalloc_test_init);
#endif

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Uladzislau Rezki");
MODULE_DESCRIPTION("vmalloc test module");

Annotation

• Immediate include surface: `linux/init.h`, `linux/kernel.h`, `linux/module.h`, `linux/vmalloc.h`, `linux/random.h`, `linux/kthread.h`, `linux/moduleparam.h`, `linux/completion.h`.
• Detected declarations: `struct test_kvfree_rcu`, `struct test_case_desc`, `struct test_case_data`, `function test_report_one_done`, `function random_size_align_alloc_test`, `function align_shift_alloc_test`, `function fix_align_alloc_test`, `function random_size_alloc_test`, `function long_busy_list_alloc_test`, `function full_fit_alloc_test`.
• 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.