drivers/mtd/mtdpstore.c

File Facts

System

Linux kernel

Corpus path

drivers/mtd/mtdpstore.c

Extension

.c

Size

14895 bytes

Lines

580

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/pstore_blk.h
• linux/mtd/mtd.h
• linux/bitops.h
• linux/slab.h

Detected Declarations

• function mtdpstore_block_isbad
• function mtdpstore_panic_block_isbad
• function mtdpstore_mark_used
• function mtdpstore_mark_unused
• function mtdpstore_block_mark_unused
• function mtdpstore_is_used
• function mtdpstore_block_is_used
• function mtdpstore_is_empty
• function mtdpstore_mark_removed
• function mtdpstore_block_clear_removed
• function mtdpstore_block_is_removed
• function mtdpstore_erase_do
• function mtdpstore_erase
• function mtdpstore_security
• function mtdpstore_write
• function mtdpstore_is_io_error
• function mtdpstore_read
• function mtdpstore_panic_write
• function mtdpstore_notify_add
• function mtdpstore_flush_removed_do
• function mtdpstore_flush_removed
• function mtdpstore_notify_remove
• function mtdpstore_init
• function mtdpstore_exit
• module init mtdpstore_init

Annotated Snippet

module_init(mtdpstore_init);

static void __exit mtdpstore_exit(void)
{
	unregister_mtd_user(&mtdpstore_notifier);
}
module_exit(mtdpstore_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("WeiXiong Liao <liaoweixiong@allwinnertech.com>");
MODULE_DESCRIPTION("MTD backend for pstore/blk");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/pstore_blk.h`, `linux/mtd/mtd.h`, `linux/bitops.h`, `linux/slab.h`.
• Detected declarations: `function mtdpstore_block_isbad`, `function mtdpstore_panic_block_isbad`, `function mtdpstore_mark_used`, `function mtdpstore_mark_unused`, `function mtdpstore_block_mark_unused`, `function mtdpstore_is_used`, `function mtdpstore_block_is_used`, `function mtdpstore_is_empty`, `function mtdpstore_mark_removed`, `function mtdpstore_block_clear_removed`.
• 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.