iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

nvme-multipath: set bdi capabilities once

Browse Source 
[ Upstream commit b2ce4d90690bd29ce5b554e203cd03682dd59697 ]

The queues' backing device info capabilities don't change with each
namespace revalidation. Set it only when each path's request_queue
is initially added to a multipath queue.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Keith Busch 2020-04-09 09:09:04 -07:00 committed by Greg Kroah-Hartman
parent 8f4aa3a6de
commit c4f007d3db
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/nvme/host/multipath.c
View File

@ -3,6 +3,7 @@
* Copyright (c) 2017-2018 Christoph Hellwig.
*/
#include <linux/backing-dev.h>
#include <linux/moduleparam.h>
#include <trace/events/block.h>
#include "nvme.h"
@ -662,6 +663,13 @@ void nvme_mpath_add_disk(struct nvme_ns *ns, struct nvme_id_ns *id)
ns->ana_state = NVME_ANA_OPTIMIZED;
nvme_mpath_set_live(ns);
}
if (bdi_cap_stable_pages_required(ns->queue->backing_dev_info)) {
struct backing_dev_info *info =
ns->head->disk->queue->backing_dev_info;
info->capabilities |= BDI_CAP_STABLE_WRITES;
}
}
void nvme_mpath_remove_disk(struct nvme_ns_head *head)