include/linux/dma-buf-mapping.h

File Facts

System

Linux kernel

Corpus path

include/linux/dma-buf-mapping.h

Extension

.h

Size

515 bytes

Lines

18

Domain

Core OS

Bucket

Core Kernel Interface

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

• linux/dma-buf.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __DMA_BUF_MAPPING_H__
#define __DMA_BUF_MAPPING_H__
#include <linux/dma-buf.h>

struct sg_table *dma_buf_phys_vec_to_sgt(struct dma_buf_attachment *attach,
					 struct p2pdma_provider *provider,
					 struct phys_vec *phys_vec,
					 size_t nr_ranges, size_t size,
					 enum dma_data_direction dir);
void dma_buf_free_sgt(struct dma_buf_attachment *attach, struct sg_table *sgt,
		      enum dma_data_direction dir);
#endif

Annotation

• Immediate include surface: `linux/dma-buf.h`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.