fs/bad_inode.c
Source file repositories/reference/linux-study-clean/fs/bad_inode.c
File Facts
- System
- Linux kernel
- Corpus path
fs/bad_inode.c- Extension
.c- Size
- 5797 bytes
- Lines
- 252
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/fs.hlinux/export.hlinux/stat.hlinux/time.hlinux/namei.hlinux/poll.hlinux/fiemap.h
Detected Declarations
function Copyrightfunction bad_inode_createfunction bad_inode_linkfunction bad_inode_unlinkfunction bad_inode_symlinkfunction bad_inode_rmdirfunction bad_inode_mknodfunction bad_inode_rename2function bad_inode_readlinkfunction bad_inode_permissionfunction bad_inode_getattrfunction bad_inode_setattrfunction bad_inode_listxattrfunction bad_inode_fiemapfunction bad_inode_update_timefunction bad_inode_atomic_openfunction bad_inode_tmpfilefunction bad_inode_set_aclfunction read_inodefunction make_bad_inodefunction iget_failedexport make_bad_inodeexport is_bad_inodeexport iget_failed
Annotated Snippet
static const struct file_operations bad_file_ops =
{
.open = bad_file_open,
};
static int bad_inode_create(struct mnt_idmap *idmap,
struct inode *dir, struct dentry *dentry,
umode_t mode, bool excl)
{
return -EIO;
}
static struct dentry *bad_inode_lookup(struct inode *dir,
struct dentry *dentry, unsigned int flags)
{
return ERR_PTR(-EIO);
}
static int bad_inode_link (struct dentry *old_dentry, struct inode *dir,
struct dentry *dentry)
{
return -EIO;
}
static int bad_inode_unlink(struct inode *dir, struct dentry *dentry)
{
return -EIO;
}
static int bad_inode_symlink(struct mnt_idmap *idmap,
struct inode *dir, struct dentry *dentry,
const char *symname)
{
return -EIO;
}
static struct dentry *bad_inode_mkdir(struct mnt_idmap *idmap, struct inode *dir,
struct dentry *dentry, umode_t mode)
{
return ERR_PTR(-EIO);
}
static int bad_inode_rmdir (struct inode *dir, struct dentry *dentry)
{
return -EIO;
}
static int bad_inode_mknod(struct mnt_idmap *idmap, struct inode *dir,
struct dentry *dentry, umode_t mode, dev_t rdev)
{
return -EIO;
}
static int bad_inode_rename2(struct mnt_idmap *idmap,
struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags)
{
return -EIO;
}
static int bad_inode_readlink(struct dentry *dentry, char __user *buffer,
int buflen)
{
return -EIO;
}
static int bad_inode_permission(struct mnt_idmap *idmap,
struct inode *inode, int mask)
{
return -EIO;
}
static int bad_inode_getattr(struct mnt_idmap *idmap,
const struct path *path, struct kstat *stat,
u32 request_mask, unsigned int query_flags)
{
return -EIO;
}
static int bad_inode_setattr(struct mnt_idmap *idmap,
struct dentry *direntry, struct iattr *attrs)
{
return -EIO;
}
static ssize_t bad_inode_listxattr(struct dentry *dentry, char *buffer,
size_t buffer_size)
{
return -EIO;
Annotation
- Immediate include surface: `linux/fs.h`, `linux/export.h`, `linux/stat.h`, `linux/time.h`, `linux/namei.h`, `linux/poll.h`, `linux/fiemap.h`.
- Detected declarations: `function Copyright`, `function bad_inode_create`, `function bad_inode_link`, `function bad_inode_unlink`, `function bad_inode_symlink`, `function bad_inode_rmdir`, `function bad_inode_mknod`, `function bad_inode_rename2`, `function bad_inode_readlink`, `function bad_inode_permission`.
- 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.