On Wed, Apr 02, 2025 at 03:09:34PM +0800, LongPing Wei wrote: > 1. call blk_flush_plug when cache hit as the address of the subsequent > bio is no longer contiguous with the previous bio; > 2. skip cond_resched when ioprio class is rt; > > Signed-off-by: LongPing Wei <weilongping@xxxxxxxx> > --- > drivers/md/dm-bufio.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) Looks fine: Reviewed-by: Eric Biggers <ebiggers@xxxxxxxxxx> But I do think the prefetching should be reworked to be along the lines of what I suggested here: https://lore.kernel.org/dm-devel/20250327170524.GF1425@sol.localdomain/ Any chance you're interested in helping with that? It also *might* be the case that the prefetching is no longer helpful and should just be removed. Especially if dm-verity will start prefetching the whole hash tree anyway, as your other patch does. - Eric
