block/blk-throttle.c
Source file repositories/reference/linux-study-clean/block/blk-throttle.c
File Facts
- System
- Linux kernel
- Corpus path
block/blk-throttle.c- Extension
.c- Size
- 51761 bytes
- Lines
- 1903
- Domain
- Representative Device Path
- Bucket
- PCIe NVMe Storage Path
- Inferred role
- Representative Device Path: exported/initcall integration point
- Status
- integration 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.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/module.hlinux/slab.hlinux/blkdev.hlinux/bio.hlinux/blktrace_api.hblk.hblk-cgroup-rwstat.hblk-throttle.h
Detected Declarations
struct throtl_datafunction tg_bps_limitfunction tg_iops_limitfunction throtl_bio_data_sizefunction throtl_qnode_initfunction throtl_qnode_add_biofunction bio_flaggedfunction throtl_service_queue_initfunction throtl_pd_initfunction tg_update_has_rulesfunction throtl_pd_onlinefunction throtl_pd_freefunction throtl_rb_firstfunction throtl_rb_erasefunction update_min_dispatch_timefunction tg_service_queue_addfunction throtl_enqueue_tgfunction throtl_dequeue_tgfunction throtl_schedule_pending_timerfunction throtl_schedule_next_dispatchfunction throtl_start_new_slice_with_creditfunction throtl_start_new_slicefunction throtl_set_slice_endfunction throtl_extend_slicefunction throtl_slice_usedfunction sq_queuedfunction calculate_io_allowedfunction calculate_bytes_allowedfunction throtl_trim_bpsfunction throtl_trim_iopsfunction throtl_trim_slicefunction __tg_update_carryoverfunction carryoverfunction tg_update_carryoverfunction tg_within_iops_limitfunction tg_within_bps_limitfunction throtl_charge_bps_biofunction throtl_charge_iops_biofunction tg_update_slicefunction tg_dispatch_bps_timefunction tg_dispatch_iops_timefunction tg_dispatch_timefunction throtl_add_bio_tgfunction tg_update_disptimefunction start_parent_slice_with_creditfunction tg_dispatch_one_biofunction throtl_add_bio_tgfunction throtl_dispatch_tg
Annotated Snippet
module_init(throtl_init);Annotation
- Immediate include surface: `linux/module.h`, `linux/slab.h`, `linux/blkdev.h`, `linux/bio.h`, `linux/blktrace_api.h`, `blk.h`, `blk-cgroup-rwstat.h`, `blk-throttle.h`.
- Detected declarations: `struct throtl_data`, `function tg_bps_limit`, `function tg_iops_limit`, `function throtl_bio_data_size`, `function throtl_qnode_init`, `function throtl_qnode_add_bio`, `function bio_flagged`, `function throtl_service_queue_init`, `function throtl_pd_init`, `function tg_update_has_rules`.
- Atlas domain: Representative Device Path / PCIe NVMe Storage Path.
- Implementation status: integration 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.