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Message-ID: <20250318073545.3518707-4-yi.zhang@huaweicloud.com>
Date: Tue, 18 Mar 2025 15:35:38 +0800
From: Zhang Yi <yi.zhang@...weicloud.com>
To: linux-fsdevel@...r.kernel.org,
linux-ext4@...r.kernel.org,
linux-block@...r.kernel.org,
dm-devel@...ts.linux.dev,
linux-nvme@...ts.infradead.org,
linux-scsi@...r.kernel.org
Cc: linux-xfs@...r.kernel.org,
linux-kernel@...r.kernel.org,
hch@....de,
tytso@....edu,
djwong@...nel.org,
john.g.garry@...cle.com,
bmarzins@...hat.com,
chaitanyak@...dia.com,
shinichiro.kawasaki@....com,
yi.zhang@...wei.com,
yi.zhang@...weicloud.com,
chengzhihao1@...wei.com,
yukuai3@...wei.com,
yangerkun@...wei.com
Subject: [RFC PATCH -next v3 03/10] nvme-multipath: add BLK_FEAT_WRITE_ZEROES_UNMAP support
From: Zhang Yi <yi.zhang@...wei.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@...wei.com>
---
drivers/nvme/host/multipath.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 2a7635565083..82f12209446f 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -638,7 +638,8 @@ 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;
+ lim.features |= BLK_FEAT_IO_STAT | BLK_FEAT_NOWAIT | BLK_FEAT_POLL |
+ BLK_FEAT_WRITE_ZEROES_UNMAP;
if (head->ids.csi == NVME_CSI_ZNS)
lim.features |= BLK_FEAT_ZONED;
--
2.46.1
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