Name
blk_stack_limits —
adjust queue_limits for stacked devices
Synopsis
int blk_stack_limits ( | struct queue_limits * t, |
| struct queue_limits * b, |
| sector_t offset) ; |
Arguments
t
the stacking driver limits (top)
b
the underlying queue limits (bottom)
offset
offset to beginning of data within component device
Description
Merges two queue_limit structs. Returns 0 if alignment didn't
change. Returns -1 if adding the bottom device caused
misalignment.