diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index f94b05c585cbcec4006accaa51f8e36b06e0adf0..1a87a072fbed356374ee5672f6879c4b864003fe 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -850,8 +850,11 @@ static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns *ns,
 	cmnd->write_zeroes.length =
 		cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1);
 
+	if (!(req->cmd_flags & REQ_NOUNMAP) && (ns->features & NVME_NS_DEAC))
+		cmnd->write_zeroes.control |= cpu_to_le16(NVME_WZ_DEAC);
+
 	if (nvme_ns_has_pi(ns)) {
-		cmnd->write_zeroes.control = cpu_to_le16(NVME_RW_PRINFO_PRACT);
+		cmnd->write_zeroes.control |= cpu_to_le16(NVME_RW_PRINFO_PRACT);
 
 		switch (ns->pi_type) {
 		case NVME_NS_DPS_PI_TYPE1:
@@ -2003,6 +2006,14 @@ static int nvme_update_ns_info_block(struct nvme_ns *ns,
 		}
 	}
 
+	/*
+	 * Only set the DEAC bit if the device guarantees that reads from
+	 * deallocated data return zeroes.  While the DEAC bit does not
+	 * require that, it must be a no-op if reads from deallocated data
+	 * do not return zeroes.
+	 */
+	if ((id->dlfeat & 0x7) == 0x1 && (id->dlfeat & (1 << 3)))
+		ns->features |= NVME_NS_DEAC;
 	set_disk_ro(ns->disk, nvme_ns_is_readonly(ns, info));
 	set_bit(NVME_NS_READY, &ns->flags);
 	blk_mq_unfreeze_queue(ns->disk->queue);
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index f9df10653f3c5aeb7b00a975c6ee3268496cfa53..16b34a49149596525f07ad1e9f71103e002aa4cb 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -455,6 +455,7 @@ static inline bool nvme_ns_head_multipath(struct nvme_ns_head *head)
 enum nvme_ns_features {
 	NVME_NS_EXT_LBAS = 1 << 0, /* support extended LBA format */
 	NVME_NS_METADATA_SUPPORTED = 1 << 1, /* support getting generated md */
+	NVME_NS_DEAC,		/* DEAC bit in Write Zeores supported */
 };
 
 struct nvme_ns {
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 1d102b662e887f7327c8e4b23817ca72c16cb564..d6be2a6861000e970050ee3a72730297fa68f247 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -964,6 +964,7 @@ enum {
 	NVME_RW_PRINFO_PRCHK_GUARD	= 1 << 12,
 	NVME_RW_PRINFO_PRACT		= 1 << 13,
 	NVME_RW_DTYPE_STREAMS		= 1 << 4,
+	NVME_WZ_DEAC			= 1 << 9,
 };
 
 struct nvme_dsm_cmd {