fs/xfs/scrub/findparent.h

File Facts

System

Linux kernel

Corpus path

fs/xfs/scrub/findparent.h

Extension

.h

Size

1512 bytes

Lines

57

Domain

Core OS

Bucket

VFS And Filesystem Core

Inferred role

Core OS: implementation source

Status

source 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.
• 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

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

Detected Declarations

• struct xrep_parent_scan_info
• function xrep_findparent_scan_start
• function xrep_findparent_scan_found

Annotated Snippet

struct xrep_parent_scan_info {
	struct xfs_scrub	*sc;

	/* Inode scan cursor. */
	struct xchk_iscan	iscan;

	/* Hook to capture directory entry updates. */
	struct xfs_dir_hook	dhook;

	/* Lock protecting parent_ino. */
	struct mutex		lock;

	/* Parent inode that we've found. */
	xfs_ino_t		parent_ino;

	bool			lookup_parent;
};

int __xrep_findparent_scan_start(struct xfs_scrub *sc,
		struct xrep_parent_scan_info *pscan,
		notifier_fn_t custom_fn);
static inline int xrep_findparent_scan_start(struct xfs_scrub *sc,
		struct xrep_parent_scan_info *pscan)
{
	return __xrep_findparent_scan_start(sc, pscan, NULL);
}
int xrep_findparent_scan(struct xrep_parent_scan_info *pscan);
void xrep_findparent_scan_teardown(struct xrep_parent_scan_info *pscan);

static inline void
xrep_findparent_scan_found(
	struct xrep_parent_scan_info	*pscan,
	xfs_ino_t			ino)
{
	mutex_lock(&pscan->lock);
	pscan->parent_ino = ino;
	mutex_unlock(&pscan->lock);
}

void xrep_findparent_scan_finish_early(struct xrep_parent_scan_info *pscan,
		xfs_ino_t ino);

int xrep_findparent_confirm(struct xfs_scrub *sc, xfs_ino_t *parent_ino);

xfs_ino_t xrep_findparent_self_reference(struct xfs_scrub *sc);
xfs_ino_t xrep_findparent_from_dcache(struct xfs_scrub *sc);

#endif /* __XFS_SCRUB_FINDPARENT_H__ */

Annotation

• Detected declarations: `struct xrep_parent_scan_info`, `function xrep_findparent_scan_start`, `function xrep_findparent_scan_found`.
• Atlas domain: Core OS / VFS And Filesystem Core.
• Implementation status: source 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.