drivers/s390/block/dasd_fba.c

File Facts

System

Linux kernel

Corpus path

drivers/s390/block/dasd_fba.c

Extension

.c

Size

22428 bytes

Lines

812

Domain

Driver Families

Bucket

drivers/s390

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• 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/stddef.h
• linux/kernel.h
• asm/debug.h
• linux/slab.h
• linux/hdreg.h
• linux/bio.h
• linux/module.h
• linux/init.h
• linux/io.h
• asm/idals.h
• asm/ebcdic.h
• asm/ccwdev.h
• dasd_int.h
• dasd_fba.h

Detected Declarations

• struct dasd_fba_private
• function dasd_fba_set_online
• function define_extent
• function locate_record
• function dasd_fba_check_characteristics
• function dasd_fba_do_analysis
• function dasd_fba_fill_geometry
• function dasd_fba_erp_action
• function dasd_fba_erp_postaction
• function dasd_fba_check_for_device_change
• function ccw_write_no_data
• function ccw_write_zero
• function count_ccws
• function dasd_fba_free_cp
• function dasd_fba_handle_terminated_request
• function dasd_fba_fill_info
• function dasd_fba_dump_sense_dbf
• function dasd_fba_dump_sense
• function dasd_fba_max_sectors
• function dasd_fba_pe_handler
• function dasd_fba_init
• function dasd_fba_cleanup
• module init dasd_fba_init

Annotated Snippet

module_init(dasd_fba_init);
module_exit(dasd_fba_cleanup);

Annotation

• Immediate include surface: `linux/stddef.h`, `linux/kernel.h`, `asm/debug.h`, `linux/slab.h`, `linux/hdreg.h`, `linux/bio.h`, `linux/module.h`, `linux/init.h`.
• Detected declarations: `struct dasd_fba_private`, `function dasd_fba_set_online`, `function define_extent`, `function locate_record`, `function dasd_fba_check_characteristics`, `function dasd_fba_do_analysis`, `function dasd_fba_fill_geometry`, `function dasd_fba_erp_action`, `function dasd_fba_erp_postaction`, `function dasd_fba_check_for_device_change`.
• Atlas domain: Driver Families / drivers/s390.
• Implementation status: integration 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.