fs/coda/dir.c

File Facts

System

Linux kernel

Corpus path

fs/coda/dir.c

Extension

.c

Size

14103 bytes

Lines

574

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.
• 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/types.h
• linux/kernel.h
• linux/time.h
• linux/fs.h
• linux/slab.h
• linux/file.h
• linux/stat.h
• linux/errno.h
• linux/string.h
• linux/spinlock.h
• linux/namei.h
• linux/uaccess.h
• linux/coda.h
• coda_psdev.h
• coda_linux.h
• coda_cache.h
• coda_int.h

Detected Declarations

• function coda_return_EIO
• function coda_permission
• function coda_dir_update_mtime
• function coda_dir_inc_nlink
• function coda_dir_drop_nlink
• function coda_create
• function coda_link
• function coda_symlink
• function coda_unlink
• function coda_rmdir
• function coda_rename
• function CDT2DT
• function coda_venus_readdir
• function coda_readdir
• function coda_dentry_revalidate
• function dput
• function coda_revalidate_inode

Annotated Snippet

const struct file_operations coda_dir_operations = {
	.llseek		= generic_file_llseek,
	.read		= generic_read_dir,
	.iterate_shared	= shared_coda_readdir,
	.open		= coda_open,
	.release	= coda_release,
	.fsync		= coda_fsync,
};

Annotation

• Immediate include surface: `linux/types.h`, `linux/kernel.h`, `linux/time.h`, `linux/fs.h`, `linux/slab.h`, `linux/file.h`, `linux/stat.h`, `linux/errno.h`.
• Detected declarations: `function coda_return_EIO`, `function coda_permission`, `function coda_dir_update_mtime`, `function coda_dir_inc_nlink`, `function coda_dir_drop_nlink`, `function coda_create`, `function coda_link`, `function coda_symlink`, `function coda_unlink`, `function coda_rmdir`.
• Atlas domain: Core OS / VFS And Filesystem Core.
• Implementation status: pattern 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.