include/uapi/linux/affs_hardblocks.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/affs_hardblocks.h

Extension

.h

Size

1578 bytes

Lines

70

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/types.h

Detected Declarations

• struct RigidDiskBlock
• struct PartitionBlock

Annotated Snippet

struct RigidDiskBlock {
	__be32	rdb_ID;
	__be32	rdb_SummedLongs;
	__be32	rdb_ChkSum;
	__be32	rdb_HostID;
	__be32	rdb_BlockBytes;
	__be32	rdb_Flags;
	__be32	rdb_BadBlockList;
	__be32	rdb_PartitionList;
	__be32	rdb_FileSysHeaderList;
	__be32	rdb_DriveInit;
	__be32	rdb_Reserved1[6];
	__be32	rdb_Cylinders;
	__be32	rdb_Sectors;
	__be32	rdb_Heads;
	__be32	rdb_Interleave;
	__be32	rdb_Park;
	__be32	rdb_Reserved2[3];
	__be32	rdb_WritePreComp;
	__be32	rdb_ReducedWrite;
	__be32	rdb_StepRate;
	__be32	rdb_Reserved3[5];
	__be32	rdb_RDBBlocksLo;
	__be32	rdb_RDBBlocksHi;
	__be32	rdb_LoCylinder;
	__be32	rdb_HiCylinder;
	__be32	rdb_CylBlocks;
	__be32	rdb_AutoParkSeconds;
	__be32	rdb_HighRDSKBlock;
	__be32	rdb_Reserved4;
	char	rdb_DiskVendor[8];
	char	rdb_DiskProduct[16];
	char	rdb_DiskRevision[4];
	char	rdb_ControllerVendor[8];
	char	rdb_ControllerProduct[16];
	char	rdb_ControllerRevision[4];
	__be32	rdb_Reserved5[10];
};

#define	IDNAME_RIGIDDISK	0x5244534B	/* "RDSK" */

struct PartitionBlock {
	__be32	pb_ID;
	__be32	pb_SummedLongs;
	__be32	pb_ChkSum;
	__be32	pb_HostID;
	__be32	pb_Next;
	__be32	pb_Flags;
	__be32	pb_Reserved1[2];
	__be32	pb_DevFlags;
	__u8	pb_DriveName[32];
	__be32	pb_Reserved2[15];
	__be32	pb_Environment[17];
	__be32	pb_EReserved[15];
};

#define	IDNAME_PARTITION	0x50415254	/* "PART" */

#define RDB_ALLOCATION_LIMIT	16

#endif	/* AFFS_HARDBLOCKS_H */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct RigidDiskBlock`, `struct PartitionBlock`.
• 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.