diff mbox series

[03/10] nvme-multipath: add BLK_FEAT_WRITE_ZEROES_UNMAP support

Message ID 20250604020850.1304633-4-yi.zhang@huaweicloud.com
State New
Headers show
Series fallocate: introduce FALLOC_FL_WRITE_ZEROES flag | expand

Commit Message

Zhang Yi June 4, 2025, 2:08 a.m. UTC 
From: Zhang Yi <yi.zhang@huawei.com>

Set the BLK_FEAT_WRITE_ZEROES_UNMAP feature while creating multipath
stacking queue limits by default. This feature shall be disabled if any
attached namespace does not support it.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 drivers/nvme/host/multipath.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 878ea8b1a0ac..6a6d827fa7ee 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -745,7 +745,8 @@  int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl, struct nvme_ns_head *head)
 	blk_set_stacking_limits(&lim);
 	lim.dma_alignment = 3;
 	lim.features |= BLK_FEAT_IO_STAT | BLK_FEAT_NOWAIT |
-		BLK_FEAT_POLL | BLK_FEAT_ATOMIC_WRITES;
+			BLK_FEAT_POLL | BLK_FEAT_ATOMIC_WRITES |
+			BLK_FEAT_WRITE_ZEROES_UNMAP;
 	if (head->ids.csi == NVME_CSI_ZNS)
 		lim.features |= BLK_FEAT_ZONED;