Module storage 

Block-device, filesystem, and queue-discovery utilities.

The helpers inspect filesystem metadata and system block-device information. Discovery covers backing device names, software RAID, multi-queue properties, and the filesystem hosting a path.

Discovery reads sysfs under /sys/dev/block/, stats the device through MetadataExt, and calls statfs(2), which not every target provides. Where an interface is missing these functions report no raid or return an unsupported error, so callers need no condition of their own.

Structs

MultiDevice

Multi-Device (md) i.e. software raid properties.

MultiQueue

Multi-Queue (mq) characteristics.

Queue

Single-queue characteristics

Enums

Filesystem

Filesystem hosting a path, among those needing special handling.

Functions

block_path 🔒

dev_from_path 🔒

Get the (major, minor) of the block device on which Path is mounted.

filesystem_from_path

Get the filesystem on which Path is mounted, when it needs special handling.

md_discover

Get properties of a MultiDevice (md) storage system

mq_discover 🔒

Get properties of a MultiQueue within a MultiDevice.

name_from_path

Get the name of the block device on which Path is mounted.

queue_discover 🔒

Get properties of a Queue within a MultiQueue.