include/linux/fs_pin.h

File Facts

System

Linux kernel

Corpus path

include/linux/fs_pin.h

Extension

.h

Size

539 bytes

Lines

25

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

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

Dependency Surface

• linux/wait.h

Detected Declarations

• struct fs_pin
• struct vfsmount
• function init_fs_pin

Annotated Snippet

struct fs_pin {
	wait_queue_head_t	wait;
	int			done;
	struct hlist_node	s_list;
	struct hlist_node	m_list;
	void (*kill)(struct fs_pin *);
};

struct vfsmount;

static inline void init_fs_pin(struct fs_pin *p, void (*kill)(struct fs_pin *))
{
	init_waitqueue_head(&p->wait);
	INIT_HLIST_NODE(&p->s_list);
	INIT_HLIST_NODE(&p->m_list);
	p->kill = kill;
}

void pin_remove(struct fs_pin *);
void pin_insert(struct fs_pin *, struct vfsmount *);
void pin_kill(struct fs_pin *);

Annotation

• Immediate include surface: `linux/wait.h`.
• Detected declarations: `struct fs_pin`, `struct vfsmount`, `function init_fs_pin`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.