On Thu, 2018-10-18 at 21:18 +0800, Ming Lei wrote: > Turns out q->dma_alignement should be stack limit because now bvec table ^^^^^^^^^^^^^^ dma_alignment? > is immutalbe, the underlying queue's dma alignment has to be perceptible ^^^^^^^^^ ^^^^^^^^^^^ immutable? observable? > by stack driver, so IO buffer can be allocated as dma aligned before ^^^^^ stacked?
Anyway: Reviewed-by: Bart Van Assche <bvanass...@acm.org>