fs/xfs/scrub/tempfile.h

File Facts

System

Linux kernel

Corpus path

fs/xfs/scrub/tempfile.h

Extension

.h

Size

1752 bytes

Lines

52

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.
• 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

• enum xfs_blft
• function xrep_tempfile_iolock_both

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (c) 2021-2024 Oracle.  All Rights Reserved.
 * Author: Darrick J. Wong <djwong@kernel.org>
 */
#ifndef __XFS_SCRUB_TEMPFILE_H__
#define __XFS_SCRUB_TEMPFILE_H__

#ifdef CONFIG_XFS_ONLINE_REPAIR
int xrep_tempfile_create(struct xfs_scrub *sc, uint16_t mode);
void xrep_tempfile_rele(struct xfs_scrub *sc);

int xrep_tempfile_adjust_directory_tree(struct xfs_scrub *sc);

bool xrep_tempfile_iolock_nowait(struct xfs_scrub *sc);
int xrep_tempfile_iolock_polled(struct xfs_scrub *sc);
void xrep_tempfile_iounlock(struct xfs_scrub *sc);

void xrep_tempfile_ilock(struct xfs_scrub *sc);
bool xrep_tempfile_ilock_nowait(struct xfs_scrub *sc);
void xrep_tempfile_iunlock(struct xfs_scrub *sc);
void xrep_tempfile_iunlock_both(struct xfs_scrub *sc);
void xrep_tempfile_ilock_both(struct xfs_scrub *sc);

int xrep_tempfile_prealloc(struct xfs_scrub *sc, xfs_fileoff_t off,
		xfs_filblks_t len);

enum xfs_blft;

typedef int (*xrep_tempfile_copyin_fn)(struct xfs_scrub *sc,
		struct xfs_buf *bp, void *data);

int xrep_tempfile_copyin(struct xfs_scrub *sc, xfs_fileoff_t off,
		xfs_filblks_t len, xrep_tempfile_copyin_fn fn, void *data);

int xrep_tempfile_set_isize(struct xfs_scrub *sc, unsigned long long isize);

int xrep_tempfile_roll_trans(struct xfs_scrub *sc);
void xrep_tempfile_copyout_local(struct xfs_scrub *sc, int whichfork);
bool xrep_is_tempfile(const struct xfs_inode *ip);
#else
static inline void xrep_tempfile_iolock_both(struct xfs_scrub *sc)
{
	xchk_ilock(sc, XFS_IOLOCK_EXCL);
}
# define xrep_is_tempfile(ip)		(false)
# define xrep_tempfile_adjust_directory_tree(sc)	(0)
# define xrep_tempfile_rele(sc)
#endif /* CONFIG_XFS_ONLINE_REPAIR */

#endif /* __XFS_SCRUB_TEMPFILE_H__ */

Annotation

• Detected declarations: `enum xfs_blft`, `function xrep_tempfile_iolock_both`.
• Atlas domain: Core OS / VFS And Filesystem Core.
• Implementation status: source 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.