fs/exfat/super.c

File Facts

System

Linux kernel

Corpus path

fs/exfat/super.c

Extension

.c

Size

24377 bytes

Lines

945

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/fs_context.h
• linux/fs_parser.h
• linux/module.h
• linux/init.h
• linux/time.h
• linux/mount.h
• linux/cred.h
• linux/statfs.h
• linux/seq_file.h
• linux/blkdev.h
• linux/fs_struct.h
• linux/iversion.h
• linux/nls.h
• linux/buffer_head.h
• linux/magic.h
• exfat_raw.h
• exfat_fs.h

Detected Declarations

• function exfat_free_iocharset
• function exfat_set_iocharset
• function exfat_put_super
• function exfat_statfs
• function exfat_set_vol_flags
• function exfat_set_volume_dirty
• function exfat_clear_volume_dirty
• function exfat_show_options
• function exfat_force_shutdown
• function exfat_shutdown
• function exfat_free_inode
• function exfat_parse_param
• function exfat_hash_init
• function exfat_read_root
• function exfat_calibrate_blocksize
• function exfat_read_boot_sector
• function exfat_verify_boot_region
• function __exfat_fill_super
• function exfat_fill_super
• function exfat_get_tree
• function exfat_free_sbi
• function exfat_free
• function exfat_reconfigure
• function exfat_init_fs_context
• function delayed_free
• function exfat_kill_sb
• function exfat_inode_init_once
• function init_exfat_fs
• function exit_exfat_fs
• module init init_exfat_fs

Annotated Snippet

module_init(init_exfat_fs);
module_exit(exit_exfat_fs);

MODULE_ALIAS_FS("exfat");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("exFAT filesystem support");
MODULE_AUTHOR("Samsung Electronics Co., Ltd.");

Annotation

• Immediate include surface: `linux/fs_context.h`, `linux/fs_parser.h`, `linux/module.h`, `linux/init.h`, `linux/time.h`, `linux/mount.h`, `linux/cred.h`, `linux/statfs.h`.
• Detected declarations: `function exfat_free_iocharset`, `function exfat_set_iocharset`, `function exfat_put_super`, `function exfat_statfs`, `function exfat_set_vol_flags`, `function exfat_set_volume_dirty`, `function exfat_clear_volume_dirty`, `function exfat_show_options`, `function exfat_force_shutdown`, `function exfat_shutdown`.
• 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.