bdev_stack_limits
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## Name

bdev_stack_limits — adjust queue limits for stacked drivers

## Synopsis

`int bdev_stack_limits (` | struct queue_limits * t,
| struct block_device * bdev,
| sector_t start`)`;

## Arguments

`t`

  the stacking driver limits (top device)

`bdev`

  the component block_device (bottom)

`start`

  first data sector within component device

## Description

Merges queue limits for a top device and a block_device. Returns 0 if alignment didn't change. Returns -1 if adding the bottom device caused misalignment.

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