On Wed, 18 Jun 2025, John Garry wrote: > Same as done for raid0, set chunk_sectors limit to appropriately set the > atomic write size limit. > > Setting chunk_sectors limit in this way overrides the stacked limit > already calculated based on the bottom device limits. This is ok, as > when any bios are sent to the bottom devices, the block layer will still > respect the bottom device chunk_sectors. > > Signed-off-by: John Garry <john.g.garry@xxxxxxxxxx> > --- > drivers/md/dm-stripe.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c > index a7dc04bd55e5..5bbbdf8fc1bd 100644 > --- a/drivers/md/dm-stripe.c > +++ b/drivers/md/dm-stripe.c > @@ -458,6 +458,7 @@ static void stripe_io_hints(struct dm_target *ti, > struct stripe_c *sc = ti->private; > unsigned int chunk_size = sc->chunk_size << SECTOR_SHIFT; > > + limits->chunk_sectors = sc->chunk_size; > limits->io_min = chunk_size; > limits->io_opt = chunk_size * sc->stripes; > } > -- > 2.31.1 Reviewed-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
