BDEV_STACK_LIMITS

Section: Block Devices (9)
Updated: February 2011
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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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