include/linux/blk-cgroup.h

File Facts

System

Linux kernel

Corpus path

include/linux/blk-cgroup.h

Extension

.h

Size

1568 bytes

Lines

52

Domain

Representative Device Path

Bucket

PCIe NVMe Storage Path

Inferred role

Representative Device Path: implementation source

Status

source implementation candidate

Why This File Exists

Part of the selected hardware vertical slice: PCI discovery, driver binding, NVMe queues, block requests, DMA, interrupts, and completion.

• Part of the selected hardware vertical slice: PCI discovery, driver binding, NVMe queues, block requests, DMA, interrupts, and completion.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct bio
• struct cgroup_subsys_state
• struct gendisk
• function blkcg_maybe_throttle_current

Annotated Snippet

static inline void blkcg_maybe_throttle_current(void) { }
static inline bool blk_cgroup_congested(void) { return false; }
static inline struct cgroup_subsys_state *bio_blkcg_css(struct bio *bio)
{
	return NULL;
}
#endif	/* CONFIG_BLK_CGROUP */

int blkcg_set_fc_appid(char *app_id, u64 cgrp_id, size_t app_id_len);
char *blkcg_get_fc_appid(struct bio *bio);

#endif	/* _BLK_CGROUP_H */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct bio`, `struct cgroup_subsys_state`, `struct gendisk`, `function blkcg_maybe_throttle_current`.
• Atlas domain: Representative Device Path / PCIe NVMe Storage Path.
• 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.