arch/um/include/shared/skas/mm_id.h

File Facts

System

Linux kernel

Corpus path

arch/um/include/shared/skas/mm_id.h

Extension

.h

Size

617 bytes

Lines

31

Domain

Architecture Layer

Bucket

arch/um

Inferred role

Architecture Layer: implementation source

Status

source 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/compiler_types.h

Detected Declarations

• struct mm_id

Annotated Snippet

struct mm_id {
	int pid;
	unsigned long stack;
	int syscall_data_len;

	/* Only used with SECCOMP mode */
	int sock;
	int syscall_fd_num;
	int syscall_fd_map[STUB_MAX_FDS];
};

struct mutex *__get_turnstile(struct mm_id *mm_id);
void enter_turnstile(struct mm_id *mm_id) __acquires(__get_turnstile(mm_id));
void exit_turnstile(struct mm_id *mm_id) __releases(__get_turnstile(mm_id));

void notify_mm_kill(int pid);

#endif

Annotation

• Immediate include surface: `linux/compiler_types.h`.
• Detected declarations: `struct mm_id`.
• Atlas domain: Architecture Layer / arch/um.
• Implementation status: source 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.