mm/mseal.c

File Facts

System

Linux kernel

Corpus path

mm/mseal.c

Extension

.c

Size

5217 bytes

Lines

196

Domain

Core OS

Bucket

Memory Management

Inferred role

Core OS: syscall or user/kernel boundary

Status

core 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.
• Defines or participates in a user/kernel boundary; inspect argument validation, copy_from_user/copy_to_user, credentials, and dispatch target.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/mempolicy.h
• linux/minmax.h
• linux/mman.h
• linux/mm.h
• linux/mm_inline.h
• linux/syscalls.h
• linux/sched.h
• internal.h

Detected Declarations

• syscall mseal
• function mseal
• function for_each_vma_range
• function mseal_apply
• function for_each_vma_range
• function mseal

Annotated Snippet

SYSCALL_DEFINE3(mseal, unsigned long, start, size_t, len, unsigned long,
		flags)
{
	return do_mseal(start, len, flags);
}

Annotation

• Immediate include surface: `linux/mempolicy.h`, `linux/minmax.h`, `linux/mman.h`, `linux/mm.h`, `linux/mm_inline.h`, `linux/syscalls.h`, `linux/sched.h`, `internal.h`.
• Detected declarations: `syscall mseal`, `function mseal`, `function for_each_vma_range`, `function mseal_apply`, `function for_each_vma_range`, `function mseal`.
• Atlas domain: Core OS / Memory Management.
• Implementation status: core 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.