block/blk-ioc.c
Source file repositories/reference/linux-study-clean/block/blk-ioc.c
File Facts
- System
- Linux kernel
- Corpus path
block/blk-ioc.c- Extension
.c- Size
- 10450 bytes
- Lines
- 443
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/kernel.hlinux/module.hlinux/init.hlinux/bio.hlinux/blkdev.hlinux/slab.hlinux/security.hlinux/sched/task.hblk.hblk-mq-sched.h
Detected Declarations
function get_io_contextfunction ioc_exit_icqfunction ioc_exit_icqsfunction ioc_destroy_icqfunction put_io_contextfunction ioc_delay_freefunction ioc_clear_queuefunction ioc_exit_icqsfunction put_io_contextfunction exit_io_contextfunction set_task_iopriofunction __copy_iofunction blk_ioc_initmodule init blk_ioc_initexport put_io_contextexport set_task_ioprioexport ioc_lookup_icqexport ioc_find_get_icq
Annotated Snippet
subsys_initcall(blk_ioc_init);Annotation
- Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/init.h`, `linux/bio.h`, `linux/blkdev.h`, `linux/slab.h`, `linux/security.h`, `linux/sched/task.h`.
- Detected declarations: `function get_io_context`, `function ioc_exit_icq`, `function ioc_exit_icqs`, `function ioc_destroy_icq`, `function put_io_context`, `function ioc_delay_free`, `function ioc_clear_queue`, `function ioc_exit_icqs`, `function put_io_context`, `function exit_io_context`.
- 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.