fs/jffs2/super.c

File Facts

System

Linux kernel

Corpus path

fs/jffs2/super.c

Extension

.c

Size

10926 bytes

Lines

444

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/kernel.h
• linux/module.h
• linux/slab.h
• linux/init.h
• linux/list.h
• linux/fs.h
• linux/err.h
• linux/mount.h
• linux/fs_context.h
• linux/fs_parser.h
• linux/jffs2.h
• linux/pagemap.h
• linux/mtd/super.h
• linux/ctype.h
• linux/namei.h
• linux/seq_file.h
• linux/exportfs.h
• compr.h
• nodelist.h

Detected Declarations

• function jffs2_free_inode
• function jffs2_i_init_once
• function jffs2_show_options
• function jffs2_sync_fs
• function jffs2_parse_param
• function jffs2_update_mount_opts
• function jffs2_reconfigure
• function jffs2_fill_super
• function jffs2_get_tree
• function jffs2_free_fc
• function jffs2_init_fs_context
• function jffs2_put_super
• function jffs2_kill_sb
• function init_jffs2_fs
• function exit_jffs2_fs
• module init init_jffs2_fs

Annotated Snippet

module_init(init_jffs2_fs);
module_exit(exit_jffs2_fs);

MODULE_DESCRIPTION("The Journalling Flash File System, v2");
MODULE_AUTHOR("Red Hat, Inc.");
MODULE_LICENSE("GPL"); // Actually dual-licensed, but it doesn't matter for
		       // the sake of this tag. It's Free Software.

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/slab.h`, `linux/init.h`, `linux/list.h`, `linux/fs.h`, `linux/err.h`, `linux/mount.h`.
• Detected declarations: `function jffs2_free_inode`, `function jffs2_i_init_once`, `function jffs2_show_options`, `function jffs2_sync_fs`, `function jffs2_parse_param`, `function jffs2_update_mount_opts`, `function jffs2_reconfigure`, `function jffs2_fill_super`, `function jffs2_get_tree`, `function jffs2_free_fc`.
• 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.