drivers/mtd/mtdoops.c

File Facts

System

Linux kernel

Corpus path

drivers/mtd/mtdoops.c

Extension

.c

Size

11507 bytes

Lines

456

Domain

Driver Families

Bucket

drivers/mtd

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/kernel.h
• linux/module.h
• linux/console.h
• linux/vmalloc.h
• linux/workqueue.h
• linux/sched.h
• linux/wait.h
• linux/delay.h
• linux/interrupt.h
• linux/timekeeping.h
• linux/mtd/mtd.h
• linux/kmsg_dump.h

Detected Declarations

• struct mtdoops_hdr
• function mark_page_used
• function mark_page_unused
• function page_is_used
• function mtdoops_erase_block
• function mtdoops_erase
• function mtdoops_workfunc_erase
• function mtdoops_inc_counter
• function mtdoops_write
• function mtdoops_workfunc_write
• function find_next_position
• function mtdoops_do_dump
• function mtdoops_notify_add
• function mtdoops_notify_remove
• function mtdoops_init
• function mtdoops_exit
• module init mtdoops_init

Annotated Snippet

module_init(mtdoops_init);
module_exit(mtdoops_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
MODULE_DESCRIPTION("MTD Oops/Panic console logger/driver");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/console.h`, `linux/vmalloc.h`, `linux/workqueue.h`, `linux/sched.h`, `linux/wait.h`, `linux/delay.h`.
• Detected declarations: `struct mtdoops_hdr`, `function mark_page_used`, `function mark_page_unused`, `function page_is_used`, `function mtdoops_erase_block`, `function mtdoops_erase`, `function mtdoops_workfunc_erase`, `function mtdoops_inc_counter`, `function mtdoops_write`, `function mtdoops_workfunc_write`.
• Atlas domain: Driver Families / drivers/mtd.
• 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.