fs/ocfs2/localalloc.h

File Facts

System

Linux kernel

Corpus path

fs/ocfs2/localalloc.h

Extension

.h

Size

1435 bytes

Lines

53

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 ocfs2_alloc_context

Annotated Snippet

#ifndef OCFS2_LOCALALLOC_H
#define OCFS2_LOCALALLOC_H

int ocfs2_load_local_alloc(struct ocfs2_super *osb);

void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb);

void ocfs2_la_set_sizes(struct ocfs2_super *osb, int requested_mb);
unsigned int ocfs2_la_default_mb(struct ocfs2_super *osb);

int ocfs2_begin_local_alloc_recovery(struct ocfs2_super *osb,
				     int node_num,
				     struct ocfs2_dinode **alloc_copy);

int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb,
					struct ocfs2_dinode *alloc);

int ocfs2_alloc_should_use_local(struct ocfs2_super *osb,
				 u64 bits);

struct ocfs2_alloc_context;
int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
				   u32 bits_wanted,
				   struct ocfs2_alloc_context *ac);

int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
				 handle_t *handle,
				 struct ocfs2_alloc_context *ac,
				 u32 bits_wanted,
				 u32 *bit_off,
				 u32 *num_bits);

int ocfs2_free_local_alloc_bits(struct ocfs2_super *osb,
				handle_t *handle,
				struct ocfs2_alloc_context *ac,
				u32 bit_off,
				u32 num_bits);

void ocfs2_local_alloc_seen_free_bits(struct ocfs2_super *osb,
				      unsigned int num_clusters);
void ocfs2_la_enable_worker(struct work_struct *work);

#endif /* OCFS2_LOCALALLOC_H */

Annotation

• Detected declarations: `struct ocfs2_alloc_context`.
• 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.