fs/xfs/libxfs/xfs_inode_buf.h

File Facts

System

Linux kernel

Corpus path

fs/xfs/libxfs/xfs_inode_buf.h

Extension

.h

Size

1813 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.
• 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 xfs_inode
• struct xfs_dinode
• struct xfs_imap
• function xfs_inode_encode_bigtime
• function xfs_dinode_good_version

Annotated Snippet

struct xfs_imap {
	xfs_agblock_t	im_agbno;	/* starting agbno of inode cluster */
	unsigned short	im_boffset;	/* offset in inode cluster in bytes */
} __packed;

int	xfs_read_icluster(struct xfs_perag *pag, struct xfs_trans *tp,
		xfs_agblock_t agbno, struct xfs_buf **bpp);
void	xfs_dinode_calc_crc(struct xfs_mount *mp, struct xfs_dinode *dip);
void	xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to,
			  xfs_lsn_t lsn);
int	xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from);

xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino,
			   struct xfs_dinode *dip);
xfs_failaddr_t xfs_dinode_verify_metadir(struct xfs_mount *mp,
		struct xfs_dinode *dip, uint16_t mode, uint16_t flags,
		uint64_t flags2);
xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp,
		uint32_t extsize, uint16_t mode, uint16_t flags);
xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp,
		uint32_t cowextsize, uint16_t mode, uint16_t flags,
		uint64_t flags2);

static inline uint64_t xfs_inode_encode_bigtime(struct timespec64 tv)
{
	return xfs_unix_to_bigtime(tv.tv_sec) * NSEC_PER_SEC + tv.tv_nsec;
}

struct timespec64 xfs_inode_from_disk_ts(struct xfs_dinode *dip,
		const xfs_timestamp_t ts);

static inline bool
xfs_dinode_good_version(struct xfs_mount *mp, uint8_t version)
{
	if (xfs_has_v3inodes(mp))
		return version == 3;
	return version == 1 || version == 2;
}


#endif	/* __XFS_INODE_BUF_H__ */

Annotation

• Detected declarations: `struct xfs_inode`, `struct xfs_dinode`, `struct xfs_imap`, `function xfs_inode_encode_bigtime`, `function xfs_dinode_good_version`.
• 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.