[RFC v2 2/3] nvme: move ns id info to struct nvme_ns_head

Daniel Wagner
2023-12-01T09:32:13Z

Move the namesapce info to struct nvme_ns_head, because it's the same
for all associated namespaces.

The head pointer is accessible from the ns pointer so we could just
update all places with ns->x to ns->head->x. While this is okay for the
slow path, it's not for the fast path. Thus we store the head pointer as
private data into request_queue.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
---
drivers/nvme/host/apple.c | 4 +-
drivers/nvme/host/core.c | 177 +++++++++++++++++----------------
drivers/nvme/host/fc.c | 4 +-
drivers/nvme/host/ioctl.c | 20 ++--
drivers/nvme/host/multipath.c | 40 ++++----
drivers/nvme/host/nvme.h | 56 +++++------
drivers/nvme/host/rdma.c | 10 +-
drivers/nvme/host/tcp.c | 8 +-
drivers/nvme/host/zns.c | 30 +++---
drivers/nvme/target/loop.c | 4 +-
drivers/nvme/target/passthru.c | 8 +-
11 files changed, 182 insertions(+), 179 deletions(-)

diff --git a/drivers/nvme/host/apple.c b/drivers/nvme/host/apple.c
index 596bb11eeba5..04c1c5fbd4d1 100644
--- a/drivers/nvme/host/apple.c
+++ b/drivers/nvme/host/apple.c
@@ -732,7 +732,7 @@ static int apple_nvme_remove_sq(struct apple_nvme *anv)
static blk_status_t apple_nvme_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
{
- struct nvme_ns *ns = hctx->queue->queuedata;
+ struct nvme_ns_head *head = hctx->queue->queuedata;
struct apple_nvme_queue *q = hctx->driver_data;
struct apple_nvme *anv = queue_to_apple_nvme(q);
struct request *req = bd->rq;
@@ -753,7 +753,7 @@ static blk_status_t apple_nvme_queue_rq(struct blk_mq_hw_ctx *hctx,
if (!nvme_check_ready(&anv->ctrl, req, true))
return nvme_fail_nonready_command(&anv->ctrl, req);

- ret = nvme_setup_cmd(ns, req);
+ ret = nvme_setup_cmd(head, req);
if (ret)
return ret;

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 900c045fcae0..bcc5fefb53a8 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -308,16 +308,16 @@ static void nvme_retry_req(struct request *req)

static void nvme_log_error(struct request *req)
{
- struct nvme_ns *ns = req->q->queuedata;
+ struct nvme_ns_head *head = req->q->queuedata;
struct nvme_request *nr = nvme_req(req);

- if (ns) {
+ if (head) {
pr_err_ratelimited("%s: %s(0x%x) @ LBA %llu, %llu blocks, %s (sct 0x%x / sc 0x%x) %s%s\n",
- ns->disk ? ns->disk->disk_name : "?",
+ head->disk ? head->disk->disk_name : "?",
nvme_get_opcode_str(nr->cmd->common.opcode),
nr->cmd->common.opcode,
- (unsigned long long)nvme_sect_to_lba(ns, blk_rq_pos(req)),
- (unsigned long long)blk_rq_bytes(req) >> ns->lba_shift,
+ (unsigned long long)nvme_sect_to_lba(head, blk_rq_pos(req)),
+ (unsigned long long)blk_rq_bytes(req) >> head->lba_shift,
nvme_get_error_status_str(nr->status),
nr->status >> 8 & 7, /* Status Code Type */
nr->status & 0xff, /* Status Code */
@@ -757,16 +757,16 @@ bool __nvme_check_ready(struct nvme_ctrl *ctrl, struct request *rq,
}
EXPORT_SYMBOL_GPL(__nvme_check_ready);

-static inline void nvme_setup_flush(struct nvme_ns *ns,
+static inline void nvme_setup_flush(struct nvme_ns_head *head,
struct nvme_command *cmnd)
{
memset(cmnd, 0, sizeof(*cmnd));
cmnd->common.opcode = nvme_cmd_flush;
- cmnd->common.nsid = cpu_to_le32(ns->head->ns_id);
+ cmnd->common.nsid = cpu_to_le32(head->ns_id);
}

-static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
- struct nvme_command *cmnd)
+static blk_status_t nvme_setup_discard(struct nvme_ns_head *head,
+ struct request *req, struct nvme_command *cmnd)
{
unsigned short segments = blk_rq_nr_discard_segments(req), n = 0;
struct nvme_ctrl *ctrl = nvme_req(req)->ctrl;
@@ -794,8 +794,8 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
}

if (queue_max_discard_segments(req->q) == 1) {
- u64 slba = nvme_sect_to_lba(ns, blk_rq_pos(req));
- u32 nlb = blk_rq_sectors(req) >> (ns->lba_shift - 9);
+ u64 slba = nvme_sect_to_lba(head, blk_rq_pos(req));
+ u32 nlb = blk_rq_sectors(req) >> (head->lba_shift - 9);

range[0].cattr = cpu_to_le32(0);
range[0].nlb = cpu_to_le32(nlb);
@@ -803,8 +803,8 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
n = 1;
} else {
__rq_for_each_bio(bio, req) {
- u64 slba = nvme_sect_to_lba(ns, bio->bi_iter.bi_sector);
- u32 nlb = bio->bi_iter.bi_size >> ns->lba_shift;
+ u64 slba = nvme_sect_to_lba(head, bio->bi_iter.bi_sector);
+ u32 nlb = bio->bi_iter.bi_size >> head->lba_shift;

if (n < segments) {
range[n].cattr = cpu_to_le32(0);
@@ -825,7 +825,7 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,

memset(cmnd, 0, sizeof(*cmnd));
cmnd->dsm.opcode = nvme_cmd_dsm;
- cmnd->dsm.nsid = cpu_to_le32(ns->head->ns_id);
+ cmnd->dsm.nsid = cpu_to_le32(head->ns_id);
cmnd->dsm.nr = cpu_to_le32(segments - 1);
cmnd->dsm.attributes = cpu_to_le32(NVME_DSMGMT_AD);

@@ -835,14 +835,14 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
return BLK_STS_OK;
}

-static void nvme_set_ref_tag(struct nvme_ns *ns, struct nvme_command *cmnd,
+static void nvme_set_ref_tag(struct nvme_ns_head *head, struct nvme_command *cmnd,
struct request *req)
{
u32 upper, lower;
u64 ref48;

/* both rw and write zeroes share the same reftag format */
- switch (ns->guard_type) {
+ switch (head->guard_type) {
case NVME_NVM_NS_16B_GUARD:
cmnd->rw.reftag = cpu_to_le32(t10_pi_ref_tag(req));
break;
@@ -859,7 +859,7 @@ static void nvme_set_ref_tag(struct nvme_ns *ns, struct nvme_command *cmnd,
}
}

-static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns *ns,
+static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns_head *head,
struct request *req, struct nvme_command *cmnd)
{
struct nvme_ctrl *ctrl = nvme_req(req)->ctrl;
@@ -867,25 +867,25 @@ static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns *ns,
memset(cmnd, 0, sizeof(*cmnd));

if (ctrl->quirks & NVME_QUIRK_DEALLOCATE_ZEROES)
- return nvme_setup_discard(ns, req, cmnd);
+ return nvme_setup_discard(head, req, cmnd);

cmnd->write_zeroes.opcode = nvme_cmd_write_zeroes;
- cmnd->write_zeroes.nsid = cpu_to_le32(ns->head->ns_id);
+ cmnd->write_zeroes.nsid = cpu_to_le32(head->ns_id);
cmnd->write_zeroes.slba =
- cpu_to_le64(nvme_sect_to_lba(ns, blk_rq_pos(req)));
+ cpu_to_le64(nvme_sect_to_lba(head, blk_rq_pos(req)));
cmnd->write_zeroes.length =
- cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1);
+ cpu_to_le16((blk_rq_bytes(req) >> head->lba_shift) - 1);

- if (!(req->cmd_flags & REQ_NOUNMAP) && (ns->features & NVME_NS_DEAC))
+ if (!(req->cmd_flags & REQ_NOUNMAP) && (head->features & NVME_NS_DEAC))
cmnd->write_zeroes.control |= cpu_to_le16(NVME_WZ_DEAC);

- if (nvme_ns_has_pi(ns)) {
+ if (nvme_ns_has_pi(head)) {
cmnd->write_zeroes.control |= cpu_to_le16(NVME_RW_PRINFO_PRACT);

- switch (ns->pi_type) {
+ switch (head->pi_type) {
case NVME_NS_DPS_PI_TYPE1:
case NVME_NS_DPS_PI_TYPE2:
- nvme_set_ref_tag(ns, cmnd, req);
+ nvme_set_ref_tag(head, cmnd, req);
break;
}
}
@@ -893,7 +893,7 @@ static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns *ns,
return BLK_STS_OK;
}

-static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
+static inline blk_status_t nvme_setup_rw(struct nvme_ns_head *head,
struct request *req, struct nvme_command *cmnd,
enum nvme_opcode op)
{
@@ -910,17 +910,17 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,

cmnd->rw.opcode = op;
cmnd->rw.flags = 0;
- cmnd->rw.nsid = cpu_to_le32(ns->head->ns_id);
+ cmnd->rw.nsid = cpu_to_le32(head->ns_id);
cmnd->rw.cdw2 = 0;
cmnd->rw.cdw3 = 0;
cmnd->rw.metadata = 0;
- cmnd->rw.slba = cpu_to_le64(nvme_sect_to_lba(ns, blk_rq_pos(req)));
- cmnd->rw.length = cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1);
+ cmnd->rw.slba = cpu_to_le64(nvme_sect_to_lba(head, blk_rq_pos(req)));
+ cmnd->rw.length = cpu_to_le16((blk_rq_bytes(req) >> head->lba_shift) - 1);
cmnd->rw.reftag = 0;
cmnd->rw.apptag = 0;
cmnd->rw.appmask = 0;

- if (ns->ms) {
+ if (head->ms) {
/*
* If formated with metadata, the block layer always provides a
* metadata buffer if CONFIG_BLK_DEV_INTEGRITY is enabled. Else
@@ -928,12 +928,12 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
* namespace capacity to zero to prevent any I/O.
*/
if (!blk_integrity_rq(req)) {
- if (WARN_ON_ONCE(!nvme_ns_has_pi(ns)))
+ if (WARN_ON_ONCE(!nvme_ns_has_pi(head)))
return BLK_STS_NOTSUPP;
control |= NVME_RW_PRINFO_PRACT;
}

- switch (ns->pi_type) {
+ switch (head->pi_type) {
case NVME_NS_DPS_PI_TYPE3:
control |= NVME_RW_PRINFO_PRCHK_GUARD;
break;
@@ -943,7 +943,7 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
NVME_RW_PRINFO_PRCHK_REF;
if (op == nvme_cmd_zone_append)
control |= NVME_RW_APPEND_PIREMAP;
- nvme_set_ref_tag(ns, cmnd, req);
+ nvme_set_ref_tag(head, cmnd, req);
break;
}
}
@@ -966,7 +966,7 @@ void nvme_cleanup_cmd(struct request *req)
}
EXPORT_SYMBOL_GPL(nvme_cleanup_cmd);

-blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req)
+blk_status_t nvme_setup_cmd(struct nvme_ns_head *head, struct request *req)
{
struct nvme_command *cmd = nvme_req(req)->cmd;
blk_status_t ret = BLK_STS_OK;
@@ -980,35 +980,35 @@ blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req)
/* these are setup prior to execution in nvme_init_request() */
break;
case REQ_OP_FLUSH:
- nvme_setup_flush(ns, cmd);
+ nvme_setup_flush(head, cmd);
break;
case REQ_OP_ZONE_RESET_ALL:
case REQ_OP_ZONE_RESET:
- ret = nvme_setup_zone_mgmt_send(ns, req, cmd, NVME_ZONE_RESET);
+ ret = nvme_setup_zone_mgmt_send(head, req, cmd, NVME_ZONE_RESET);
break;
case REQ_OP_ZONE_OPEN:
- ret = nvme_setup_zone_mgmt_send(ns, req, cmd, NVME_ZONE_OPEN);
+ ret = nvme_setup_zone_mgmt_send(head, req, cmd, NVME_ZONE_OPEN);
break;
case REQ_OP_ZONE_CLOSE:
- ret = nvme_setup_zone_mgmt_send(ns, req, cmd, NVME_ZONE_CLOSE);
+ ret = nvme_setup_zone_mgmt_send(head, req, cmd, NVME_ZONE_CLOSE);
break;
case REQ_OP_ZONE_FINISH:
- ret = nvme_setup_zone_mgmt_send(ns, req, cmd, NVME_ZONE_FINISH);
+ ret = nvme_setup_zone_mgmt_send(head, req, cmd, NVME_ZONE_FINISH);
break;
case REQ_OP_WRITE_ZEROES:
- ret = nvme_setup_write_zeroes(ns, req, cmd);
+ ret = nvme_setup_write_zeroes(head, req, cmd);
break;
case REQ_OP_DISCARD:
- ret = nvme_setup_discard(ns, req, cmd);
+ ret = nvme_setup_discard(head, req, cmd);
break;
case REQ_OP_READ:
- ret = nvme_setup_rw(ns, req, cmd, nvme_cmd_read);
+ ret = nvme_setup_rw(head, req, cmd, nvme_cmd_read);
break;
case REQ_OP_WRITE:
- ret = nvme_setup_rw(ns, req, cmd, nvme_cmd_write);
+ ret = nvme_setup_rw(head, req, cmd, nvme_cmd_write);
break;
case REQ_OP_ZONE_APPEND:
- ret = nvme_setup_rw(ns, req, cmd, nvme_cmd_zone_append);
+ ret = nvme_setup_rw(head, req, cmd, nvme_cmd_zone_append);
break;
default:
WARN_ON_ONCE(1);
@@ -1084,12 +1084,12 @@ int nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
}
EXPORT_SYMBOL_GPL(nvme_submit_sync_cmd);

-u32 nvme_command_effects(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u8 opcode)
+u32 nvme_command_effects(struct nvme_ctrl *ctrl, struct nvme_ns_head *head, u8 opcode)
{
u32 effects = 0;

- if (ns) {
- effects = le32_to_cpu(ns->head->effects->iocs[opcode]);
+ if (head) {
+ effects = le32_to_cpu(head->effects->iocs[opcode]);
if (effects & ~(NVME_CMD_EFFECTS_CSUPP | NVME_CMD_EFFECTS_LBCC))
dev_warn_once(ctrl->device,
"IO command:%02x has unusual effects:%08x\n",
@@ -1109,9 +1109,9 @@ u32 nvme_command_effects(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u8 opcode)
}
EXPORT_SYMBOL_NS_GPL(nvme_command_effects, NVME_TARGET_PASSTHRU);

-u32 nvme_passthru_start(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u8 opcode)
+u32 nvme_passthru_start(struct nvme_ctrl *ctrl, struct nvme_ns_head *head, u8 opcode)
{
- u32 effects = nvme_command_effects(ctrl, ns, opcode);
+ u32 effects = nvme_command_effects(ctrl, head, opcode);

/*
* For simplicity, IO to all namespaces is quiesced even if the command
@@ -1129,7 +1129,7 @@ u32 nvme_passthru_start(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u8 opcode)
}
EXPORT_SYMBOL_NS_GPL(nvme_passthru_start, NVME_TARGET_PASSTHRU);

-void nvme_passthru_end(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u32 effects,
+void nvme_passthru_end(struct nvme_ctrl *ctrl, struct nvme_ns_head *head, u32 effects,
struct nvme_command *cmd, int status)
{
if (effects & NVME_CMD_EFFECTS_CSE_MASK) {
@@ -1149,7 +1149,7 @@ void nvme_passthru_end(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u32 effects,
nvme_queue_scan(ctrl);
flush_work(&ctrl->scan_work);
}
- if (ns)
+ if (head)
return;

switch (cmd->common.opcode) {
@@ -1679,9 +1679,9 @@ static void nvme_init_integrity(struct gendisk *disk, struct nvme_ns *ns,
{
struct blk_integrity integrity = { };

- switch (ns->pi_type) {
+ switch (ns->head->pi_type) {
case NVME_NS_DPS_PI_TYPE3:
- switch (ns->guard_type) {
+ switch (ns->head->guard_type) {
case NVME_NVM_NS_16B_GUARD:
integrity.profile = &t10_pi_type3_crc;
integrity.tag_size = sizeof(u16) + sizeof(u32);
@@ -1699,7 +1699,7 @@ static void nvme_init_integrity(struct gendisk *disk, struct nvme_ns *ns,
break;
case NVME_NS_DPS_PI_TYPE1:
case NVME_NS_DPS_PI_TYPE2:
- switch (ns->guard_type) {
+ switch (ns->head->guard_type) {
case NVME_NVM_NS_16B_GUARD:
integrity.profile = &t10_pi_type1_crc;
integrity.tag_size = sizeof(u16);
@@ -1720,7 +1720,7 @@ static void nvme_init_integrity(struct gendisk *disk, struct nvme_ns *ns,
break;
}

- integrity.tuple_size = ns->ms;
+ integrity.tuple_size = ns->head->ms;
blk_integrity_register(disk, &integrity);
blk_queue_max_integrity_segments(disk->queue, max_integrity_segments);
}
@@ -1737,8 +1737,9 @@ static void nvme_config_discard(struct gendisk *disk, struct nvme_ns *ns)
struct request_queue *queue = disk->queue;
u32 size = queue_logical_block_size(queue);

- if (ctrl->dmrsl && ctrl->dmrsl <= nvme_sect_to_lba(ns, UINT_MAX))
- ctrl->max_discard_sectors = nvme_lba_to_sect(ns, ctrl->dmrsl);
+ if (ctrl->dmrsl && ctrl->dmrsl <= nvme_sect_to_lba(ns->head, UINT_MAX))
+ ctrl->max_discard_sectors = nvme_lba_to_sect(ns->head,
+ ctrl->dmrsl);

if (ctrl->max_discard_sectors == 0) {
blk_queue_max_discard_sectors(queue, 0);
@@ -1779,11 +1780,11 @@ static int nvme_init_ms(struct nvme_ns *ns, struct nvme_id_ns *id)
int ret = 0;
u32 elbaf;

- ns->pi_size = 0;
- ns->ms = le16_to_cpu(id->lbaf[lbaf].ms);
+ ns->head->pi_size = 0;
+ ns->head->ms = le16_to_cpu(id->lbaf[lbaf].ms);
if (!(ctrl->ctratt & NVME_CTRL_ATTR_ELBAS)) {
- ns->pi_size = sizeof(struct t10_pi_tuple);
- ns->guard_type = NVME_NVM_NS_16B_GUARD;
+ ns->head->pi_size = sizeof(struct t10_pi_tuple);
+ ns->head->guard_type = NVME_NVM_NS_16B_GUARD;
goto set_pi;
}

@@ -1806,13 +1807,13 @@ static int nvme_init_ms(struct nvme_ns *ns, struct nvme_id_ns *id)
if (nvme_elbaf_sts(elbaf))
goto free_data;

- ns->guard_type = nvme_elbaf_guard_type(elbaf);
- switch (ns->guard_type) {
+ ns->head->guard_type = nvme_elbaf_guard_type(elbaf);
+ switch (ns->head->guard_type) {
case NVME_NVM_NS_64B_GUARD:
- ns->pi_size = sizeof(struct crc64_pi_tuple);
+ ns->head->pi_size = sizeof(struct crc64_pi_tuple);
break;
case NVME_NVM_NS_16B_GUARD:
- ns->pi_size = sizeof(struct t10_pi_tuple);
+ ns->head->pi_size = sizeof(struct t10_pi_tuple);
break;
default:
break;
@@ -1821,10 +1822,10 @@ static int nvme_init_ms(struct nvme_ns *ns, struct nvme_id_ns *id)
free_data:
kfree(nvm);
set_pi:
- if (ns->pi_size && (first || ns->ms == ns->pi_size))
- ns->pi_type = id->dps & NVME_NS_DPS_PI_MASK;
+ if (ns->head->pi_size && (first || ns->head->ms == ns->head->pi_size))
+ ns->head->pi_type = id->dps & NVME_NS_DPS_PI_MASK;
else
- ns->pi_type = 0;
+ ns->head->pi_type = 0;

return ret;
}
@@ -1838,8 +1839,8 @@ static int nvme_configure_metadata(struct nvme_ns *ns, struct nvme_id_ns *id)
if (ret)
return ret;

- ns->features &= ~(NVME_NS_METADATA_SUPPORTED | NVME_NS_EXT_LBAS);
- if (!ns->ms || !(ctrl->ops->flags & NVME_F_METADATA_SUPPORTED))
+ ns->head->features &= ~(NVME_NS_METADATA_SUPPORTED | NVME_NS_EXT_LBAS);
+ if (!ns->head->ms || !(ctrl->ops->flags & NVME_F_METADATA_SUPPORTED))
return 0;

if (ctrl->ops->flags & NVME_F_FABRICS) {
@@ -1851,7 +1852,7 @@ static int nvme_configure_metadata(struct nvme_ns *ns, struct nvme_id_ns *id)
if (WARN_ON_ONCE(!(id->flbas & NVME_NS_FLBAS_META_EXT)))
return 0;

- ns->features |= NVME_NS_EXT_LBAS;
+ ns->head->features |= NVME_NS_EXT_LBAS;

/*
* The current fabrics transport drivers support namespace
@@ -1862,8 +1863,8 @@ static int nvme_configure_metadata(struct nvme_ns *ns, struct nvme_id_ns *id)
* Note, this check will need to be modified if any drivers
* gain the ability to use other metadata formats.
*/
- if (ctrl->max_integrity_segments && nvme_ns_has_pi(ns))
- ns->features |= NVME_NS_METADATA_SUPPORTED;
+ if (ctrl->max_integrity_segments && nvme_ns_has_pi(ns->head))
+ ns->head->features |= NVME_NS_METADATA_SUPPORTED;
} else {
/*
* For PCIe controllers, we can't easily remap the separate
@@ -1872,9 +1873,9 @@ static int nvme_configure_metadata(struct nvme_ns *ns, struct nvme_id_ns *id)
* We allow extended LBAs for the passthrough interface, though.
*/
if (id->flbas & NVME_NS_FLBAS_META_EXT)
- ns->features |= NVME_NS_EXT_LBAS;
+ ns->head->features |= NVME_NS_EXT_LBAS;
else
- ns->features |= NVME_NS_METADATA_SUPPORTED;
+ ns->head->features |= NVME_NS_METADATA_SUPPORTED;
}
return 0;
}
@@ -1900,8 +1901,8 @@ static void nvme_set_queue_limits(struct nvme_ctrl *ctrl,
static void nvme_update_disk_info(struct gendisk *disk,
struct nvme_ns *ns, struct nvme_id_ns *id)
{
- sector_t capacity = nvme_lba_to_sect(ns, le64_to_cpu(id->nsze));
- u32 bs = 1U << ns->lba_shift;
+ sector_t capacity = nvme_lba_to_sect(ns->head, le64_to_cpu(id->nsze));
+ u32 bs = 1U << ns->head->lba_shift;
u32 atomic_bs, phys_bs, io_opt = 0;

/*
@@ -1909,7 +1910,7 @@ static void nvme_update_disk_info(struct gendisk *disk,
* or smaller than a sector size yet, so catch this early and don't
* allow block I/O.
*/
- if (ns->lba_shift > PAGE_SHIFT || ns->lba_shift < SECTOR_SHIFT) {
+ if (ns->head->lba_shift > PAGE_SHIFT || ns->head->lba_shift < SECTOR_SHIFT) {
capacity = 0;
bs = (1 << 9);
}
@@ -1952,12 +1953,12 @@ static void nvme_update_disk_info(struct gendisk *disk,
* I/O to namespaces with metadata except when the namespace supports
* PI, as it can strip/insert in that case.
*/
- if (ns->ms) {
+ if (ns->head->ms) {
if (IS_ENABLED(CONFIG_BLK_DEV_INTEGRITY) &&
- (ns->features & NVME_NS_METADATA_SUPPORTED))
+ (ns->head->features & NVME_NS_METADATA_SUPPORTED))
nvme_init_integrity(disk, ns,
ns->ctrl->max_integrity_segments);
- else if (!nvme_ns_has_pi(ns))
+ else if (!nvme_ns_has_pi(ns->head))
capacity = 0;
}

@@ -1988,7 +1989,7 @@ static void nvme_set_chunk_sectors(struct nvme_ns *ns, struct nvme_id_ns *id)
is_power_of_2(ctrl->max_hw_sectors))
iob = ctrl->max_hw_sectors;
else
- iob = nvme_lba_to_sect(ns, le16_to_cpu(id->noiob));
+ iob = nvme_lba_to_sect(ns->head, le16_to_cpu(id->noiob));

if (!iob)
return;
@@ -2021,7 +2022,7 @@ static int nvme_update_ns_info_generic(struct nvme_ns *ns,
if (nvme_ns_head_multipath(ns->head)) {
blk_mq_freeze_queue(ns->head->disk->queue);
set_disk_ro(ns->head->disk, nvme_ns_is_readonly(ns, info));
- nvme_mpath_revalidate_paths(ns);
+ nvme_mpath_revalidate_paths(ns->head);
blk_stack_limits(&ns->head->disk->queue->limits,
&ns->queue->limits, 0);
ns->head->disk->flags |= GENHD_FL_HIDDEN;
@@ -2055,7 +2056,7 @@ static int nvme_update_ns_info_block(struct nvme_ns *ns,

blk_mq_freeze_queue(ns->disk->queue);
lbaf = nvme_lbaf_index(id->flbas);
- ns->lba_shift = id->lbaf[lbaf].ds;
+ ns->head->lba_shift = id->lbaf[lbaf].ds;
nvme_set_queue_limits(ns->ctrl, ns->queue);

ret = nvme_configure_metadata(ns, id);
@@ -2081,7 +2082,7 @@ static int nvme_update_ns_info_block(struct nvme_ns *ns,
* do not return zeroes.
*/
if ((id->dlfeat & 0x7) == 0x1 && (id->dlfeat & (1 << 3)))
- ns->features |= NVME_NS_DEAC;
+ ns->head->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);
@@ -2096,7 +2097,7 @@ static int nvme_update_ns_info_block(struct nvme_ns *ns,
blk_mq_freeze_queue(ns->head->disk->queue);
nvme_update_disk_info(ns->head->disk, ns, id);
set_disk_ro(ns->head->disk, nvme_ns_is_readonly(ns, info));
- nvme_mpath_revalidate_paths(ns);
+ nvme_mpath_revalidate_paths(ns->head);
blk_stack_limits(&ns->head->disk->queue->limits,
&ns->queue->limits, 0);
disk_update_readahead(ns->head->disk);
@@ -3615,7 +3616,7 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, struct nvme_ns_info *info)
if (!ns)
return;

- disk = blk_mq_alloc_disk(ctrl->tagset, ns);
+ disk = blk_mq_alloc_disk(ctrl->tagset, ns->head);
if (IS_ERR(disk))
goto out_free_ns;
disk->fops = &nvme_bdev_ops;
@@ -3716,7 +3717,7 @@ static void nvme_ns_remove(struct nvme_ns *ns)
synchronize_srcu(&ns->head->srcu);

/* wait for concurrent submissions */
- if (nvme_mpath_clear_current_path(ns))
+ if (nvme_mpath_clear_current_path(ns->head))
synchronize_srcu(&ns->head->srcu);

mutex_lock(&ns->ctrl->subsys->lock);
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index fb22976a36a8..41f9bacae6f4 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2799,7 +2799,7 @@ static blk_status_t
nvme_fc_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
{
- struct nvme_ns *ns = hctx->queue->queuedata;
+ struct nvme_ns_head *head = hctx->queue->queuedata;
struct nvme_fc_queue *queue = hctx->driver_data;
struct nvme_fc_ctrl *ctrl = queue->ctrl;
struct request *rq = bd->rq;
@@ -2813,7 +2813,7 @@ nvme_fc_queue_rq(struct blk_mq_hw_ctx *hctx,
!nvme_check_ready(&queue->ctrl->ctrl, rq, queue_ready))
return nvme_fail_nonready_command(&queue->ctrl->ctrl, rq);

- ret = nvme_setup_cmd(ns, rq);
+ ret = nvme_setup_cmd(head, rq);
if (ret)
return ret;

diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c
index 529b9954d2b8..29263009bb6e 100644
--- a/drivers/nvme/host/ioctl.c
+++ b/drivers/nvme/host/ioctl.c
@@ -61,7 +61,7 @@ static bool nvme_cmd_allowed(struct nvme_ns *ns, struct nvme_command *c,
* and marks this command as supported. If not reject unprivileged
* passthrough.
*/
- effects = nvme_command_effects(ns->ctrl, ns, c->common.opcode);
+ effects = nvme_command_effects(ns->ctrl, ns->head, c->common.opcode);
if (!(effects & NVME_CMD_EFFECTS_CSUPP))
return false;

@@ -168,8 +168,8 @@ static int nvme_map_user_request(struct request *req, u64 ubuffer,
unsigned int flags)
{
struct request_queue *q = req->q;
- struct nvme_ns *ns = q->queuedata;
- struct block_device *bdev = ns ? ns->disk->part0 : NULL;
+ struct nvme_ns_head *head = q->queuedata;
+ struct block_device *bdev = head ? head->disk->part0 : NULL;
struct bio *bio = NULL;
void *meta = NULL;
int ret;
@@ -222,7 +222,7 @@ static int nvme_submit_user_cmd(struct request_queue *q,
void __user *meta_buffer, unsigned meta_len, u32 meta_seed,
u64 *result, unsigned timeout, unsigned int flags)
{
- struct nvme_ns *ns = q->queuedata;
+ struct nvme_ns_head *head = q->queuedata;
struct nvme_ctrl *ctrl;
struct request *req;
void *meta = NULL;
@@ -245,7 +245,7 @@ static int nvme_submit_user_cmd(struct request_queue *q,
bio = req->bio;
ctrl = nvme_req(req)->ctrl;

- effects = nvme_passthru_start(ctrl, ns, cmd->common.opcode);
+ effects = nvme_passthru_start(ctrl, head, cmd->common.opcode);
ret = nvme_execute_rq(req, false);
if (result)
*result = le64_to_cpu(nvme_req(req)->result.u64);
@@ -257,7 +257,7 @@ static int nvme_submit_user_cmd(struct request_queue *q,
blk_mq_free_request(req);

if (effects)
- nvme_passthru_end(ctrl, ns, effects, cmd, ret);
+ nvme_passthru_end(ctrl, head, effects, cmd, ret);

return ret;
}
@@ -283,10 +283,10 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
return -EINVAL;
}

- length = (io.nblocks + 1) << ns->lba_shift;
+ length = (io.nblocks + 1) << ns->head->lba_shift;

if ((io.control & NVME_RW_PRINFO_PRACT) &&
- ns->ms == sizeof(struct t10_pi_tuple)) {
+ ns->head->ms == sizeof(struct t10_pi_tuple)) {
/*
* Protection information is stripped/inserted by the
* controller.
@@ -296,11 +296,11 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
meta_len = 0;
metadata = NULL;
} else {
- meta_len = (io.nblocks + 1) * ns->ms;
+ meta_len = (io.nblocks + 1) * ns->head->ms;
metadata = nvme_to_user_ptr(io.metadata);
}

- if (ns->features & NVME_NS_EXT_LBAS) {
+ if (ns->head->features & NVME_NS_EXT_LBAS) {
length += meta_len;
meta_len = 0;
} else if (meta_len) {
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 0a88d7bdc5e3..69c3223955e2 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -82,26 +82,29 @@ void nvme_mpath_start_freeze(struct nvme_subsystem *subsys)

void nvme_failover_req(struct request *req)
{
- struct nvme_ns *ns = req->q->queuedata;
+ struct nvme_ns_head *head = req->q->queuedata;
+ struct nvme_ctrl *ctrl = nvme_req(req)->ctrl;
+ struct nvme_ns *ns;
u16 status = nvme_req(req)->status & 0x7ff;
unsigned long flags;
struct bio *bio;

- nvme_mpath_clear_current_path(ns);
+ nvme_mpath_clear_current_path(head);

/*
* If we got back an ANA error, we know the controller is alive but not
* ready to serve this namespace. Kick of a re-read of the ANA
* information page, and just try any other available path for now.
*/
- if (nvme_is_ana_error(status) && ns->ctrl->ana_log_buf) {
+ if (nvme_is_ana_error(status) && ctrl->ana_log_buf) {
+ ns = nvme_find_get_ns(ctrl, head->ns_id);
set_bit(NVME_NS_ANA_PENDING, &ns->flags);
- queue_work(nvme_wq, &ns->ctrl->ana_work);
+ queue_work(nvme_wq, &ctrl->ana_work);
}

- spin_lock_irqsave(&ns->head->requeue_lock, flags);
+ spin_lock_irqsave(&head->requeue_lock, flags);
for (bio = req->bio; bio; bio = bio->bi_next) {
- bio_set_dev(bio, ns->head->disk->part0);
+ bio_set_dev(bio, head->disk->part0);
if (bio->bi_opf & REQ_POLLED) {
bio->bi_opf &= ~REQ_POLLED;
bio->bi_cookie = BLK_QC_T_NONE;
@@ -115,17 +118,17 @@ void nvme_failover_req(struct request *req)
*/
bio->bi_opf &= ~REQ_NOWAIT;
}
- blk_steal_bios(&ns->head->requeue_list, req);
- spin_unlock_irqrestore(&ns->head->requeue_lock, flags);
+ blk_steal_bios(&head->requeue_list, req);
+ spin_unlock_irqrestore(&head->requeue_lock, flags);

blk_mq_end_request(req, 0);
- kblockd_schedule_work(&ns->head->requeue_work);
+ kblockd_schedule_work(&head->requeue_work);
}

void nvme_mpath_start_request(struct request *rq)
{
- struct nvme_ns *ns = rq->q->queuedata;
- struct gendisk *disk = ns->head->disk;
+ struct nvme_ns_head *head = rq->q->queuedata;
+ struct gendisk *disk = head->disk;

if (!blk_queue_io_stat(disk->queue) || blk_rq_is_passthrough(rq))
return;
@@ -138,11 +141,11 @@ EXPORT_SYMBOL_GPL(nvme_mpath_start_request);

void nvme_mpath_end_request(struct request *rq)
{
- struct nvme_ns *ns = rq->q->queuedata;
+ struct nvme_ns_head *head = rq->q->queuedata;

if (!(nvme_req(rq)->flags & NVME_MPATH_IO_STATS))
return;
- bdev_end_io_acct(ns->head->disk->part0, req_op(rq),
+ bdev_end_io_acct(head->disk->part0, req_op(rq),
blk_rq_bytes(rq) >> SECTOR_SHIFT,
nvme_req(rq)->start_time);
}
@@ -171,9 +174,8 @@ static const char *nvme_ana_state_names[] = {
[NVME_ANA_CHANGE] = "change",
};

-bool nvme_mpath_clear_current_path(struct nvme_ns *ns)
+bool nvme_mpath_clear_current_path(struct nvme_ns_head *head)
{
- struct nvme_ns_head *head = ns->head;
bool changed = false;
int node;

@@ -181,7 +183,7 @@ bool nvme_mpath_clear_current_path(struct nvme_ns *ns)
goto out;

for_each_node(node) {
- if (ns == rcu_access_pointer(head->current_path[node])) {
+ if (head == rcu_access_pointer(head->current_path[node])->head) {
rcu_assign_pointer(head->current_path[node], NULL);
changed = true;
}
@@ -196,16 +198,16 @@ void nvme_mpath_clear_ctrl_paths(struct nvme_ctrl *ctrl)

down_read(&ctrl->namespaces_rwsem);
list_for_each_entry(ns, &ctrl->namespaces, list) {
- nvme_mpath_clear_current_path(ns);
+ nvme_mpath_clear_current_path(ns->head);
kblockd_schedule_work(&ns->head->requeue_work);
}
up_read(&ctrl->namespaces_rwsem);
}

-void nvme_mpath_revalidate_paths(struct nvme_ns *ns)
+void nvme_mpath_revalidate_paths(struct nvme_ns_head *head)
{
- struct nvme_ns_head *head = ns->head;
sector_t capacity = get_capacity(head->disk);
+ struct nvme_ns *ns;
int node;
int srcu_idx;

diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 578e6d311bc9..1ad2539df6fe 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -451,6 +451,17 @@ struct nvme_ns_head {
bool shared;
int instance;
struct nvme_effects_log *effects;
+ int lba_shift;
+ u16 ms;
+ u16 pi_size;
+ u16 sgs;
+ u32 sws;
+ u8 pi_type;
+ u8 guard_type;
+#ifdef CONFIG_BLK_DEV_ZONED
+ u64 zsze;
+#endif
+ unsigned long features;

struct cdev cdev;
struct device cdev_device;
@@ -492,17 +503,6 @@ struct nvme_ns {
struct kref kref;
struct nvme_ns_head *head;

- int lba_shift;
- u16 ms;
- u16 pi_size;
- u16 sgs;
- u32 sws;
- u8 pi_type;
- u8 guard_type;
-#ifdef CONFIG_BLK_DEV_ZONED
- u64 zsze;
-#endif
- unsigned long features;
unsigned long flags;
#define NVME_NS_REMOVING 0
#define NVME_NS_ANA_PENDING 2
@@ -517,9 +517,9 @@ struct nvme_ns {
};

/* NVMe ns supports metadata actions by the controller (generate/strip) */
-static inline bool nvme_ns_has_pi(struct nvme_ns *ns)
+static inline bool nvme_ns_has_pi(struct nvme_ns_head *head)
{
- return ns->pi_type && ns->ms == ns->pi_size;
+ return head->pi_type && head->ms == head->pi_size;
}

struct nvme_ctrl_ops {
@@ -651,17 +651,17 @@ static inline int nvme_reset_subsystem(struct nvme_ctrl *ctrl)
/*
* Convert a 512B sector number to a device logical block number.
*/
-static inline u64 nvme_sect_to_lba(struct nvme_ns *ns, sector_t sector)
+static inline u64 nvme_sect_to_lba(struct nvme_ns_head *head, sector_t sector)
{
- return sector >> (ns->lba_shift - SECTOR_SHIFT);
+ return sector >> (head->lba_shift - SECTOR_SHIFT);
}

/*
* Convert a device logical block number to a 512B sector number.
*/
-static inline sector_t nvme_lba_to_sect(struct nvme_ns *ns, u64 lba)
+static inline sector_t nvme_lba_to_sect(struct nvme_ns_head *head, u64 lba)
{
- return lba << (ns->lba_shift - SECTOR_SHIFT);
+ return lba << (head->lba_shift - SECTOR_SHIFT);
}

/*
@@ -792,7 +792,7 @@ static inline enum req_op nvme_req_op(struct nvme_command *cmd)
#define NVME_QID_ANY -1
void nvme_init_request(struct request *req, struct nvme_command *cmd);
void nvme_cleanup_cmd(struct request *req);
-blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req);
+blk_status_t nvme_setup_cmd(struct nvme_ns_head *head, struct request *req);
blk_status_t nvme_fail_nonready_command(struct nvme_ctrl *ctrl,
struct request *req);
bool __nvme_check_ready(struct nvme_ctrl *ctrl, struct request *rq,
@@ -900,8 +900,8 @@ void nvme_mpath_init_ctrl(struct nvme_ctrl *ctrl);
void nvme_mpath_update(struct nvme_ctrl *ctrl);
void nvme_mpath_uninit(struct nvme_ctrl *ctrl);
void nvme_mpath_stop(struct nvme_ctrl *ctrl);
-bool nvme_mpath_clear_current_path(struct nvme_ns *ns);
-void nvme_mpath_revalidate_paths(struct nvme_ns *ns);
+bool nvme_mpath_clear_current_path(struct nvme_ns_head *head);
+void nvme_mpath_revalidate_paths(struct nvme_ns_head *head);
void nvme_mpath_clear_ctrl_paths(struct nvme_ctrl *ctrl);
void nvme_mpath_shutdown_disk(struct nvme_ns_head *head);
void nvme_mpath_start_request(struct request *rq);
@@ -909,10 +909,10 @@ void nvme_mpath_end_request(struct request *rq);

static inline void nvme_trace_bio_complete(struct request *req)
{
- struct nvme_ns *ns = req->q->queuedata;
+ struct nvme_ns_head *head = req->q->queuedata;

if ((req->cmd_flags & REQ_NVME_MPATH) && req->bio)
- trace_block_bio_complete(ns->head->disk->queue, req->bio);
+ trace_block_bio_complete(head->disk->queue, req->bio);
}

extern bool multipath;
@@ -943,7 +943,7 @@ static inline void nvme_mpath_add_disk(struct nvme_ns *ns, __le32 anagrpid)
static inline void nvme_mpath_remove_disk(struct nvme_ns_head *head)
{
}
-static inline bool nvme_mpath_clear_current_path(struct nvme_ns *ns)
+static inline bool nvme_mpath_clear_current_path(struct nvme_ns_head *head)
{
return false;
}
@@ -1004,11 +1004,11 @@ int nvme_ns_report_zones(struct nvme_ns *ns, sector_t sector,
unsigned int nr_zones, report_zones_cb cb, void *data);
#ifdef CONFIG_BLK_DEV_ZONED
int nvme_update_zone_info(struct nvme_ns *ns, unsigned lbaf);
-blk_status_t nvme_setup_zone_mgmt_send(struct nvme_ns *ns, struct request *req,
+blk_status_t nvme_setup_zone_mgmt_send(struct nvme_ns_head *head, struct request *req,
struct nvme_command *cmnd,
enum nvme_zone_mgmt_action action);
#else
-static inline blk_status_t nvme_setup_zone_mgmt_send(struct nvme_ns *ns,
+static inline blk_status_t nvme_setup_zone_mgmt_send(struct nvme_ns_head *head,
struct request *req, struct nvme_command *cmnd,
enum nvme_zone_mgmt_action action)
{
@@ -1086,11 +1086,11 @@ static inline int nvme_auth_wait(struct nvme_ctrl *ctrl, int qid)
static inline void nvme_auth_free(struct nvme_ctrl *ctrl) {};
#endif

-u32 nvme_command_effects(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
+u32 nvme_command_effects(struct nvme_ctrl *ctrl, struct nvme_ns_head *head,
u8 opcode);
-u32 nvme_passthru_start(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u8 opcode);
+u32 nvme_passthru_start(struct nvme_ctrl *ctrl, struct nvme_ns_head *head, u8 opcode);
int nvme_execute_rq(struct request *rq, bool at_head);
-void nvme_passthru_end(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u32 effects,
+void nvme_passthru_end(struct nvme_ctrl *ctrl, struct nvme_ns_head *head, u32 effects,
struct nvme_command *cmd, int status);
struct nvme_ctrl *nvme_ctrl_from_file(struct file *file);
struct nvme_ns *nvme_find_get_ns(struct nvme_ctrl *ctrl, unsigned nsid);
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 81e2621169e5..0e967413ee43 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1407,7 +1407,7 @@ static int nvme_rdma_map_sg_pi(struct nvme_rdma_queue *queue,
struct nvme_rdma_sgl *sgl = &req->data_sgl;
struct ib_reg_wr *wr = &req->reg_wr;
struct request *rq = blk_mq_rq_from_pdu(req);
- struct nvme_ns *ns = rq->q->queuedata;
+ struct nvme_ns_head *head = rq->q->queuedata;
struct bio *bio = rq->bio;
struct nvme_keyed_sgl_desc *sg = &c->common.dptr.ksgl;
int nr;
@@ -1423,7 +1423,7 @@ static int nvme_rdma_map_sg_pi(struct nvme_rdma_queue *queue,
goto mr_put;

nvme_rdma_set_sig_attrs(blk_get_integrity(bio->bi_bdev->bd_disk), c,
- req->mr->sig_attrs, ns->pi_type);
+ req->mr->sig_attrs, head->pi_type);
nvme_rdma_set_prot_checks(c, &req->mr->sig_attrs->check_mask);

ib_update_fast_reg_key(req->mr, ib_inc_rkey(req->mr->rkey));
@@ -1979,7 +1979,7 @@ static enum blk_eh_timer_return nvme_rdma_timeout(struct request *rq)
static blk_status_t nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
{
- struct nvme_ns *ns = hctx->queue->queuedata;
+ struct nvme_ns_head *head = hctx->queue->queuedata;
struct nvme_rdma_queue *queue = hctx->driver_data;
struct request *rq = bd->rq;
struct nvme_rdma_request *req = blk_mq_rq_to_pdu(rq);
@@ -2007,7 +2007,7 @@ static blk_status_t nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx,
ib_dma_sync_single_for_cpu(dev, sqe->dma,
sizeof(struct nvme_command), DMA_TO_DEVICE);

- ret = nvme_setup_cmd(ns, rq);
+ ret = nvme_setup_cmd(head, rq);
if (ret)
goto unmap_qe;

@@ -2017,7 +2017,7 @@ static blk_status_t nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx,
queue->pi_support &&
(c->common.opcode == nvme_cmd_write ||
c->common.opcode == nvme_cmd_read) &&
- nvme_ns_has_pi(ns))
+ nvme_ns_has_pi(head))
req->use_sig_mr = true;
else
req->use_sig_mr = false;
diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 08805f027810..169462faad47 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -2483,7 +2483,7 @@ static blk_status_t nvme_tcp_map_data(struct nvme_tcp_queue *queue,
return 0;
}

-static blk_status_t nvme_tcp_setup_cmd_pdu(struct nvme_ns *ns,
+static blk_status_t nvme_tcp_setup_cmd_pdu(struct nvme_ns_head *head,
struct request *rq)
{
struct nvme_tcp_request *req = blk_mq_rq_to_pdu(rq);
@@ -2492,7 +2492,7 @@ static blk_status_t nvme_tcp_setup_cmd_pdu(struct nvme_ns *ns,
u8 hdgst = nvme_tcp_hdgst_len(queue), ddgst = 0;
blk_status_t ret;

- ret = nvme_setup_cmd(ns, rq);
+ ret = nvme_setup_cmd(head, rq);
if (ret)
return ret;

@@ -2548,7 +2548,7 @@ static void nvme_tcp_commit_rqs(struct blk_mq_hw_ctx *hctx)
static blk_status_t nvme_tcp_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
{
- struct nvme_ns *ns = hctx->queue->queuedata;
+ struct nvme_ns_head *head = hctx->queue->queuedata;
struct nvme_tcp_queue *queue = hctx->driver_data;
struct request *rq = bd->rq;
struct nvme_tcp_request *req = blk_mq_rq_to_pdu(rq);
@@ -2558,7 +2558,7 @@ static blk_status_t nvme_tcp_queue_rq(struct blk_mq_hw_ctx *hctx,
if (!nvme_check_ready(&queue->ctrl->ctrl, rq, queue_ready))
return nvme_fail_nonready_command(&queue->ctrl->ctrl, rq);

- ret = nvme_tcp_setup_cmd_pdu(ns, rq);
+ ret = nvme_tcp_setup_cmd_pdu(head, rq);
if (unlikely(ret))
return ret;

diff --git a/drivers/nvme/host/zns.c b/drivers/nvme/host/zns.c
index ec8557810c21..cc2bfbf36ecc 100644
--- a/drivers/nvme/host/zns.c
+++ b/drivers/nvme/host/zns.c
@@ -11,7 +11,7 @@ int nvme_revalidate_zones(struct nvme_ns *ns)
{
struct request_queue *q = ns->queue;

- blk_queue_chunk_sectors(q, ns->zsze);
+ blk_queue_chunk_sectors(q, ns->head->zsze);
blk_queue_max_zone_append_sectors(q, ns->ctrl->max_zone_append);

return blk_revalidate_disk_zones(ns->disk, NULL);
@@ -99,11 +99,11 @@ int nvme_update_zone_info(struct nvme_ns *ns, unsigned lbaf)
goto free_data;
}

- ns->zsze = nvme_lba_to_sect(ns, le64_to_cpu(id->lbafe[lbaf].zsze));
- if (!is_power_of_2(ns->zsze)) {
+ ns->head->zsze = nvme_lba_to_sect(ns->head, le64_to_cpu(id->lbafe[lbaf].zsze));
+ if (!is_power_of_2(ns->head->zsze)) {
dev_warn(ns->ctrl->device,
"invalid zone size:%llu for namespace:%u\n",
- ns->zsze, ns->head->ns_id);
+ ns->head->zsze, ns->head->ns_id);
status = -ENODEV;
goto free_data;
}
@@ -128,7 +128,7 @@ static void *nvme_zns_alloc_report_buffer(struct nvme_ns *ns,
sizeof(struct nvme_zone_descriptor);

nr_zones = min_t(unsigned int, nr_zones,
- get_capacity(ns->disk) >> ilog2(ns->zsze));
+ get_capacity(ns->head->disk) >> ilog2(ns->head->zsze));

bufsize = sizeof(struct nvme_zone_report) +
nr_zones * sizeof(struct nvme_zone_descriptor);
@@ -162,13 +162,13 @@ static int nvme_zone_parse_entry(struct nvme_ns *ns,

zone.type = BLK_ZONE_TYPE_SEQWRITE_REQ;
zone.cond = entry->zs >> 4;
- zone.len = ns->zsze;
- zone.capacity = nvme_lba_to_sect(ns, le64_to_cpu(entry->zcap));
- zone.start = nvme_lba_to_sect(ns, le64_to_cpu(entry->zslba));
+ zone.len = ns->head->zsze;
+ zone.capacity = nvme_lba_to_sect(ns->head, le64_to_cpu(entry->zcap));
+ zone.start = nvme_lba_to_sect(ns->head, le64_to_cpu(entry->zslba));
if (zone.cond == BLK_ZONE_COND_FULL)
zone.wp = zone.start + zone.len;
else
- zone.wp = nvme_lba_to_sect(ns, le64_to_cpu(entry->wp));
+ zone.wp = nvme_lba_to_sect(ns->head, le64_to_cpu(entry->wp));

return cb(&zone, idx, data);
}
@@ -196,11 +196,11 @@ int nvme_ns_report_zones(struct nvme_ns *ns, sector_t sector,
c.zmr.zrasf = NVME_ZRASF_ZONE_REPORT_ALL;
c.zmr.pr = NVME_REPORT_ZONE_PARTIAL;

- sector &= ~(ns->zsze - 1);
+ sector &= ~(ns->head->zsze - 1);
while (zone_idx < nr_zones && sector < get_capacity(ns->disk)) {
memset(report, 0, buflen);

- c.zmr.slba = cpu_to_le64(nvme_sect_to_lba(ns, sector));
+ c.zmr.slba = cpu_to_le64(nvme_sect_to_lba(ns->head, sector));
ret = nvme_submit_sync_cmd(ns->queue, &c, report, buflen);
if (ret) {
if (ret > 0)
@@ -220,7 +220,7 @@ int nvme_ns_report_zones(struct nvme_ns *ns, sector_t sector,
zone_idx++;
}

- sector += ns->zsze * nz;
+ sector += ns->head->zsze * nz;
}

if (zone_idx > 0)
@@ -232,14 +232,14 @@ int nvme_ns_report_zones(struct nvme_ns *ns, sector_t sector,
return ret;
}

-blk_status_t nvme_setup_zone_mgmt_send(struct nvme_ns *ns, struct request *req,
+blk_status_t nvme_setup_zone_mgmt_send(struct nvme_ns_head *head, struct request *req,
struct nvme_command *c, enum nvme_zone_mgmt_action action)
{
memset(c, 0, sizeof(*c));

c->zms.opcode = nvme_cmd_zone_mgmt_send;
- c->zms.nsid = cpu_to_le32(ns->head->ns_id);
- c->zms.slba = cpu_to_le64(nvme_sect_to_lba(ns, blk_rq_pos(req)));
+ c->zms.nsid = cpu_to_le32(head->ns_id);
+ c->zms.slba = cpu_to_le64(nvme_sect_to_lba(head, blk_rq_pos(req)));
c->zms.zsa = action;

if (req_op(req) == REQ_OP_ZONE_RESET_ALL)
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 9cb434c58075..1c3abadecaa7 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -131,7 +131,7 @@ static void nvme_loop_execute_work(struct work_struct *work)
static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
{
- struct nvme_ns *ns = hctx->queue->queuedata;
+ struct nvme_ns_head *head = hctx->queue->queuedata;
struct nvme_loop_queue *queue = hctx->driver_data;
struct request *req = bd->rq;
struct nvme_loop_iod *iod = blk_mq_rq_to_pdu(req);
@@ -141,7 +141,7 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
if (!nvme_check_ready(&queue->ctrl->ctrl, req, queue_ready))
return nvme_fail_nonready_command(&queue->ctrl->ctrl, req);

- ret = nvme_setup_cmd(ns, req);
+ ret = nvme_setup_cmd(head, req);
if (ret)
return ret;

diff --git a/drivers/nvme/target/passthru.c b/drivers/nvme/target/passthru.c
index 9fe07d7efa96..7c13084a8f87 100644
--- a/drivers/nvme/target/passthru.c
+++ b/drivers/nvme/target/passthru.c
@@ -216,11 +216,11 @@ static void nvmet_passthru_execute_cmd_work(struct work_struct *w)
struct nvmet_req *req = container_of(w, struct nvmet_req, p.work);
struct request *rq = req->p.rq;
struct nvme_ctrl *ctrl = nvme_req(rq)->ctrl;
- struct nvme_ns *ns = rq->q->queuedata;
+ struct nvme_ns_head *head = rq->q->queuedata;
u32 effects;
int status;

- effects = nvme_passthru_start(ctrl, ns, req->cmd->common.opcode);
+ effects = nvme_passthru_start(ctrl, head, req->cmd->common.opcode);
status = nvme_execute_rq(rq, false);
if (status == NVME_SC_SUCCESS &&
req->cmd->common.opcode == nvme_admin_identify) {
@@ -243,7 +243,7 @@ static void nvmet_passthru_execute_cmd_work(struct work_struct *w)
blk_mq_free_request(rq);

if (effects)
- nvme_passthru_end(ctrl, ns, effects, req->cmd, status);
+ nvme_passthru_end(ctrl, head, effects, req->cmd, status);
}

static enum rq_end_io_ret nvmet_passthru_req_done(struct request *rq,
@@ -339,7 +339,7 @@ static void nvmet_passthru_execute_cmd(struct nvmet_req *req)
* non-trivial effects, make sure to execute the command synchronously
* in a workqueue so that nvme_passthru_end gets called.
*/
- effects = nvme_command_effects(ctrl, ns, req->cmd->common.opcode);
+ effects = nvme_command_effects(ctrl, ns->head, req->cmd->common.opcode);
if (req->p.use_workqueue ||
(effects & ~(NVME_CMD_EFFECTS_CSUPP | NVME_CMD_EFFECTS_LBCC))) {
INIT_WORK(&req->p.work, nvmet_passthru_execute_cmd_work);
--
2.43.0