fs/xfs/xfs_pwork.h

File Facts

System

Linux kernel

Corpus path

fs/xfs/xfs_pwork.h

Extension

.h

Size

1407 bytes

Lines

60

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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_pwork
• struct xfs_mount
• struct xfs_pwork_ctl
• struct xfs_pwork
• function xfs_pwork_ctl_want_abort
• function xfs_pwork_want_abort

Annotated Snippet

struct xfs_pwork_ctl {
	struct workqueue_struct	*wq;
	struct xfs_mount	*mp;
	xfs_pwork_work_fn	work_fn;
	struct wait_queue_head	poll_wait;
	atomic_t		nr_work;
	int			error;
};

/*
 * Embed this parallel work control item inside your own work structure,
 * then queue work with it.
 */
struct xfs_pwork {
	struct work_struct	work;
	struct xfs_pwork_ctl	*pctl;
};

#define XFS_PWORK_SINGLE_THREADED	{ .pctl = NULL }

/* Have we been told to abort? */
static inline bool
xfs_pwork_ctl_want_abort(
	struct xfs_pwork_ctl	*pctl)
{
	return pctl && pctl->error;
}

/* Have we been told to abort? */
static inline bool
xfs_pwork_want_abort(
	struct xfs_pwork	*pwork)
{
	return xfs_pwork_ctl_want_abort(pwork->pctl);
}

int xfs_pwork_init(struct xfs_mount *mp, struct xfs_pwork_ctl *pctl,
		xfs_pwork_work_fn work_fn, const char *tag);
void xfs_pwork_queue(struct xfs_pwork_ctl *pctl, struct xfs_pwork *pwork);
int xfs_pwork_destroy(struct xfs_pwork_ctl *pctl);
void xfs_pwork_poll(struct xfs_pwork_ctl *pctl);

#endif /* __XFS_PWORK_H__ */

Annotation

• Detected declarations: `struct xfs_pwork`, `struct xfs_mount`, `struct xfs_pwork_ctl`, `struct xfs_pwork`, `function xfs_pwork_ctl_want_abort`, `function xfs_pwork_want_abort`.
• Atlas domain: Core OS / VFS And Filesystem Core.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.