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Message-ID: <20250604020850.1304633-4-yi.zhang@huaweicloud.com> Date: Wed, 4 Jun 2025 10:08:43 +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, brauner@...nel.org, martin.petersen@...cle.com, yi.zhang@...wei.com, yi.zhang@...weicloud.com, chengzhihao1@...wei.com, yukuai3@...wei.com, yangerkun@...wei.com Subject: [PATCH 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> Reviewed-by: Christoph Hellwig <hch@....de> --- 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 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; -- 2.46.1
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