fs/f2fs/super.c

File Facts

System

Linux kernel

Corpus path

fs/f2fs/super.c

Extension

.c

Size

158671 bytes

Lines

5715

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/module.h
• linux/init.h
• linux/fs.h
• linux/fs_context.h
• linux/sched/mm.h
• linux/statfs.h
• linux/kthread.h
• linux/parser.h
• linux/mount.h
• linux/seq_file.h
• linux/proc_fs.h
• linux/random.h
• linux/exportfs.h
• linux/blkdev.h
• linux/quotaops.h
• linux/f2fs_fs.h
• linux/sysfs.h
• linux/quota.h
• linux/unicode.h
• linux/part_stat.h
• linux/zstd.h
• linux/lz4.h
• linux/ctype.h
• linux/fs_parser.h
• f2fs.h
• node.h
• segment.h
• xattr.h
• gc.h
• iostat.h
• trace/events/f2fs.h

Detected Declarations

• struct f2fs_fs_context
• struct f2fs_report_zones_args
• function f2fs_build_fault_attr
• function inject_timeout
• function f2fs_simulate_lock_timeout
• function f2fs_init_shrinker
• function f2fs_exit_shrinker
• function ctx_set_opt
• function ctx_clear_opt
• function ctx_test_opt
• function f2fs_printk
• function f2fs_sb_read_encoding
• function f2fs_create_casefold_cache
• function f2fs_destroy_casefold_cache
• function f2fs_create_casefold_cache
• function f2fs_destroy_casefold_cache
• function F2FS_OPTION
• function F2FS_OPTION
• function adjust_unusable_cap_perc
• function init_once
• function f2fs_note_qf_name
• function f2fs_unnote_qf_name
• function f2fs_unnote_qf_name_all
• function f2fs_parse_test_dummy_encryption
• function is_compress_extension_exist
• function f2fs_test_compress_extension
• function f2fs_set_lz4hc_level
• function f2fs_set_zstd_level
• function f2fs_parse_param
• function f2fs_check_quota_consistency
• function f2fs_check_test_dummy_encryption
• function complexity
• function test_compression_spec
• function clear_compression_spec
• function f2fs_check_compression
• function F2FS_CTX_INFO
• function F2FS_OPTION
• function f2fs_check_opt_consistency
• function ctx_test_opt
• function f2fs_apply_quota_options
• function f2fs_apply_test_dummy_encryption
• function f2fs_apply_compression
• function f2fs_apply_options
• function f2fs_sanity_check_options
• function f2fs_drop_inode
• function writeback_single_inode
• function f2fs_inode_dirtied
• function f2fs_inode_synced

Annotated Snippet

module_init(init_f2fs_fs)
module_exit(exit_f2fs_fs)

MODULE_AUTHOR("Samsung Electronics's Praesto Team");
MODULE_DESCRIPTION("Flash Friendly File System");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/init.h`, `linux/fs.h`, `linux/fs_context.h`, `linux/sched/mm.h`, `linux/statfs.h`, `linux/kthread.h`, `linux/parser.h`.
• Detected declarations: `struct f2fs_fs_context`, `struct f2fs_report_zones_args`, `function f2fs_build_fault_attr`, `function inject_timeout`, `function f2fs_simulate_lock_timeout`, `function f2fs_init_shrinker`, `function f2fs_exit_shrinker`, `function ctx_set_opt`, `function ctx_clear_opt`, `function ctx_test_opt`.
• 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.