[Devel] [PATCH rh7] ploop: disable WRITE SAME for io_kaio
Maxim Patlasov
mpatlasov at virtuozzo.com
Wed Dec 23 16:55:41 PST 2015
kaio doesn't support WRITE SAME, so the patch disables it
https://jira.sw.ru/browse/PSBM-41965
Signed-off-by: Maxim Patlasov <mpatlasov at virtuozzo.com>
---
drivers/block/ploop/io_kaio.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/block/ploop/io_kaio.c b/drivers/block/ploop/io_kaio.c
index db900a3..79aa9af 100644
--- a/drivers/block/ploop/io_kaio.c
+++ b/drivers/block/ploop/io_kaio.c
@@ -946,6 +946,7 @@ static void kaio_unplug(struct ploop_io * io)
static void kaio_queue_settings(struct ploop_io * io, struct request_queue * q)
{
blk_set_stacking_limits(&q->limits);
+ blk_queue_max_write_same_sectors(q, 0);
}
static void kaio_issue_flush(struct ploop_io * io, struct ploop_request *preq)
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