[PATCH AUTOSEL 5.15 32/41] drbd: set QUEUE_FLAG_STABLE_WRITES

From: Sasha Levin
Date: Mon Apr 11 2022 - 20:53:13 EST


From: Christoph Böhmwalder <christoph@xxxxxxxxxxxxxx>

[ Upstream commit 286901941fd18a52b2138fddbbf589ad3639eb00 ]

We want our pages not to change while they are being written.

Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@xxxxxxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/block/drbd/drbd_main.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 55234a558e98..548e0dd53528 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2737,6 +2737,7 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig
sprintf(disk->disk_name, "drbd%d", minor);
disk->private_data = device;

+ blk_queue_flag_set(QUEUE_FLAG_STABLE_WRITES, disk->queue);
blk_queue_write_cache(disk->queue, true, true);
/* Setting the max_hw_sectors to an odd value of 8kibyte here
This triggers a max_bio_size message upon first attach or connect */
--
2.35.1