fs/jffs2/os-linux.h

File Facts

System

Linux kernel

Corpus path

fs/jffs2/os-linux.h

Extension

.h

Size

7617 bytes

Lines

198

Domain

Core OS

Bucket

VFS And Filesystem Core

Inferred role

Core OS: operation-table or driver-model contract

Status

pattern 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct kstatfs
• struct kvec
• function jffs2_init_inode_info

Annotated Snippet

extern const struct file_operations jffs2_dir_operations;
extern const struct inode_operations jffs2_dir_inode_operations;

/* file.c */
extern const struct file_operations jffs2_file_operations;
extern const struct inode_operations jffs2_file_inode_operations;
extern const struct address_space_operations jffs2_file_address_operations;
int jffs2_fsync(struct file *, loff_t, loff_t, int);
int __jffs2_read_folio(struct file *file, struct folio *folio);

/* ioctl.c */
long jffs2_ioctl(struct file *, unsigned int, unsigned long);

/* symlink.c */
extern const struct inode_operations jffs2_symlink_inode_operations;

/* fs.c */
int jffs2_setattr (struct mnt_idmap *, struct dentry *, struct iattr *);
int jffs2_do_setattr (struct inode *, struct iattr *);
struct inode *jffs2_iget(struct super_block *, unsigned long);
void jffs2_evict_inode (struct inode *);
void jffs2_dirty_inode(struct inode *inode, int flags);
struct inode *jffs2_new_inode (struct inode *dir_i, umode_t mode,
			       struct jffs2_raw_inode *ri);
int jffs2_statfs (struct dentry *, struct kstatfs *);
int jffs2_do_remount_fs(struct super_block *sb, struct fs_context *fc);
int jffs2_do_fill_super(struct super_block *sb, struct fs_context *fc);
void jffs2_gc_release_inode(struct jffs2_sb_info *c,
			    struct jffs2_inode_info *f);
struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c,
					      int inum, int unlinked);

unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
				   struct jffs2_inode_info *f,
				   unsigned long offset,
				   unsigned long *priv);
void jffs2_flash_cleanup(struct jffs2_sb_info *c);


/* writev.c */
int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs,
		       unsigned long count, loff_t to, size_t *retlen);
int jffs2_flash_direct_write(struct jffs2_sb_info *c, loff_t ofs, size_t len,
			size_t *retlen, const u_char *buf);

#endif /* __JFFS2_OS_LINUX_H__ */

Annotation

• Detected declarations: `struct kstatfs`, `struct kvec`, `function jffs2_init_inode_info`.
• Atlas domain: Core OS / VFS And Filesystem Core.
• Implementation status: pattern 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.