fs/squashfs/super.c

File Facts

System

Linux kernel

Corpus path

fs/squashfs/super.c

Extension

.c

Size

18621 bytes

Lines

707

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.
• 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/blkdev.h
• linux/fs.h
• linux/fs_context.h
• linux/fs_parser.h
• linux/vfs.h
• linux/slab.h
• linux/mutex.h
• linux/seq_file.h
• linux/pagemap.h
• linux/init.h
• linux/module.h
• linux/magic.h
• linux/xattr.h
• squashfs_fs.h
• squashfs_fs_sb.h
• squashfs_fs_i.h
• squashfs.h
• decompressor.h
• xattr.h

Detected Declarations

• struct squashfs_mount_opts
• enum Opt_errors
• enum squashfs_param
• function squashfs_parse_param_threads_str
• function squashfs_parse_param_threads_num
• function squashfs_parse_param_threads
• function squashfs_parse_param
• function squashfs_fill_super
• function size
• function squashfs_get_tree
• function squashfs_reconfigure
• function squashfs_free_fs_context
• function squashfs_show_options
• function squashfs_init_fs_context
• function squashfs_statfs
• function squashfs_put_super
• function init_once
• function init_inodecache
• function destroy_inodecache
• function init_squashfs_fs
• function exit_squashfs_fs
• function squashfs_free_inode
• module init init_squashfs_fs

Annotated Snippet

module_init(init_squashfs_fs);
module_exit(exit_squashfs_fs);
MODULE_DESCRIPTION("squashfs 4.0, a compressed read-only filesystem");
MODULE_AUTHOR("Phillip Lougher <phillip@squashfs.org.uk>");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/blkdev.h`, `linux/fs.h`, `linux/fs_context.h`, `linux/fs_parser.h`, `linux/vfs.h`, `linux/slab.h`, `linux/mutex.h`, `linux/seq_file.h`.
• Detected declarations: `struct squashfs_mount_opts`, `enum Opt_errors`, `enum squashfs_param`, `function squashfs_parse_param_threads_str`, `function squashfs_parse_param_threads_num`, `function squashfs_parse_param_threads`, `function squashfs_parse_param`, `function squashfs_fill_super`, `function size`, `function squashfs_get_tree`.
• Atlas domain: Core OS / VFS And Filesystem Core.
• Implementation status: integration 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.