tools/perf/util/copyfile.h

File Facts

System

Linux kernel

Corpus path

tools/perf/util/copyfile.h

Extension

.h

Size

464 bytes

Lines

17

Domain

Support Tooling And Documentation

Bucket

tools

Inferred role

Support Tooling And Documentation: implementation source

Status

source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h
• sys/types.h
• fcntl.h

Detected Declarations

• struct nsinfo

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
#ifndef PERF_COPYFILE_H_
#define PERF_COPYFILE_H_

#include <linux/types.h>
#include <sys/types.h>
#include <fcntl.h>

struct nsinfo;

int copyfile(const char *from, const char *to);
int copyfile_mode(const char *from, const char *to, mode_t mode);
int copyfile_ns(const char *from, const char *to, struct nsinfo *nsi);
int copyfile_offset(int ifd, loff_t off_in, int ofd, loff_t off_out, u64 size);

#endif // PERF_COPYFILE_H_

Annotation

• Immediate include surface: `linux/types.h`, `sys/types.h`, `fcntl.h`.
• Detected declarations: `struct nsinfo`.
• Atlas domain: Support Tooling And Documentation / tools.
• 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.