BDEV_STACK_LIMITS(9) Block Devices BDEV_STACK_LIMITS(9)

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.

COPYRIGHT Kernel Hackers Manual 2.6. September 2014 BDEV_STACK_LIMITS(9)