1BDEV_STACK_LIMITS(9) Block Devices BDEV_STACK_LIMITS(9)
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6 bdev_stack_limits - adjust queue limits for stacked drivers
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9 int bdev_stack_limits(struct queue_limits * t,
10 struct block_device * bdev, sector_t start);
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13 t
14 the stacking driver limits (top device)
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16 bdev
17 the component block_device (bottom)
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19 start
20 first data sector within component device
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23 Merges queue limits for a top device and a block_device. Returns 0 if
24 alignment didnĀ“t change. Returns -1 if adding the bottom device caused
25 misalignment.
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28Kernel Hackers Manual 2.6. June 2019 BDEV_STACK_LIMITS(9)