fs/9p/v9fs.c

File Facts

System

Linux kernel

Corpus path

fs/9p/v9fs.c

Extension

.c

Size

19620 bytes

Lines

787

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

Dependency Surface

• linux/module.h
• linux/errno.h
• linux/fs.h
• linux/sched.h
• linux/cred.h
• linux/fs_parser.h
• linux/fs_context.h
• linux/slab.h
• linux/seq_file.h
• net/9p/9p.h
• net/9p/client.h
• net/9p/transport.h
• v9fs.h
• v9fs_vfs.h
• cache.h

Detected Declarations

• function get_cache_mode
• function v9fs_show_options
• function v9fs_parse_param
• function v9fs_apply_options
• function v9fs_session_close
• function v9fs_session_cancel
• function v9fs_session_begin_cancel
• function caches_show
• function v9fs_sysfs_init
• function v9fs_sysfs_cleanup
• function v9fs_inode_init_once
• function v9fs_init_inode_cache
• function v9fs_destroy_inode_cache
• function init_v9fs
• function exit_v9fs
• module init init_v9fs

Annotated Snippet

module_init(init_v9fs)
module_exit(exit_v9fs)

MODULE_AUTHOR("Latchesar Ionkov <lucho@ionkov.net>");
MODULE_AUTHOR("Eric Van Hensbergen <ericvh@gmail.com>");
MODULE_AUTHOR("Ron Minnich <rminnich@lanl.gov>");
MODULE_DESCRIPTION("9P Client File System");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/errno.h`, `linux/fs.h`, `linux/sched.h`, `linux/cred.h`, `linux/fs_parser.h`, `linux/fs_context.h`, `linux/slab.h`.
• Detected declarations: `function get_cache_mode`, `function v9fs_show_options`, `function v9fs_parse_param`, `function v9fs_apply_options`, `function v9fs_session_close`, `function v9fs_session_cancel`, `function v9fs_session_begin_cancel`, `function caches_show`, `function v9fs_sysfs_init`, `function v9fs_sysfs_cleanup`.
• 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.