fs/vboxsf/super.c

File Facts

System

Linux kernel

Corpus path

fs/vboxsf/super.c

Extension

.c

Size

11467 bytes

Lines

485

Domain

Core OS

Bucket

VFS And Filesystem Core

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/idr.h
• linux/fs_parser.h
• linux/magic.h
• linux/module.h
• linux/nls.h
• linux/statfs.h
• linux/vbox_utils.h
• vfsmod.h

Detected Declarations

• function vboxsf_parse_param
• function vboxsf_fill_super
• function vboxsf_inode_init_once
• function vboxsf_free_inode
• function vboxsf_put_super
• function vboxsf_statfs
• function vboxsf_setup
• function vboxsf_parse_monolithic
• function vboxsf_get_tree
• function vboxsf_reconfigure
• function vboxsf_free_fc
• function vboxsf_init_fs_context
• function vboxsf_init
• function vboxsf_fini
• module init vboxsf_init

Annotated Snippet

module_init(vboxsf_init);
module_exit(vboxsf_fini);

MODULE_DESCRIPTION("Oracle VM VirtualBox Module for Host File System Access");
MODULE_AUTHOR("Oracle Corporation");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS_FS("vboxsf");

Annotation

• Immediate include surface: `linux/idr.h`, `linux/fs_parser.h`, `linux/magic.h`, `linux/module.h`, `linux/nls.h`, `linux/statfs.h`, `linux/vbox_utils.h`, `vfsmod.h`.
• Detected declarations: `function vboxsf_parse_param`, `function vboxsf_fill_super`, `function vboxsf_inode_init_once`, `function vboxsf_free_inode`, `function vboxsf_put_super`, `function vboxsf_statfs`, `function vboxsf_setup`, `function vboxsf_parse_monolithic`, `function vboxsf_get_tree`, `function vboxsf_reconfigure`.
• Atlas domain: Core OS / VFS And Filesystem Core.
• 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.