fs/quota/quotaio_v1.h

File Facts

System

Linux kernel

Corpus path

fs/quota/quotaio_v1.h

Extension

.h

Size

1383 bytes

Lines

37

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

• linux/types.h

Detected Declarations

• struct v1_disk_dqblk

Annotated Snippet

struct v1_disk_dqblk {
	__u32 dqb_bhardlimit;	/* absolute limit on disk blks alloc */
	__u32 dqb_bsoftlimit;	/* preferred limit on disk blks */
	__u32 dqb_curblocks;	/* current block count */
	__u32 dqb_ihardlimit;	/* absolute limit on allocated inodes */
	__u32 dqb_isoftlimit;	/* preferred inode limit */
	__u32 dqb_curinodes;	/* current # allocated inodes */

	/* below fields differ in length on 32-bit vs 64-bit architectures */
	unsigned long dqb_btime; /* time limit for excessive disk use */
	unsigned long dqb_itime; /* time limit for excessive inode use */
};

#define v1_dqoff(UID)      ((loff_t)((UID) * sizeof (struct v1_disk_dqblk)))

#endif	/* _LINUX_QUOTAIO_V1_H */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct v1_disk_dqblk`.
• 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.