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Subject[PATCH 2/4] lightnvm: rename nr_pages to nr_ppas on nvm_rq
Date
The number of ppas contained on a request is not necessarily the number
of pages that it maps to neither on the target nor on the device side.
In order to avoid confusion, rename nr_pages to nr_ppas since it is what
the variable actually contains.

Signed-off-by: Javier González <javier@cnexlabs.com>
---
drivers/lightnvm/core.c | 16 ++++++++--------
drivers/lightnvm/gennvm.c | 2 +-
drivers/lightnvm/rrpc.c | 6 +++---
drivers/lightnvm/rrpc.h | 2 +-
drivers/lightnvm/sysblk.c | 2 +-
drivers/nvme/host/lightnvm.c | 4 ++--
include/linux/lightnvm.h | 2 +-
7 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 32375b6..4cd9803 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -254,8 +254,8 @@ void nvm_addr_to_generic_mode(struct nvm_dev *dev, struct nvm_rq *rqd)
{
int i;

- if (rqd->nr_pages > 1) {
- for (i = 0; i < rqd->nr_pages; i++)
+ if (rqd->nr_ppas > 1) {
+ for (i = 0; i < rqd->nr_ppas; i++)
rqd->ppa_list[i] = dev_to_generic_addr(dev,
rqd->ppa_list[i]);
} else {
@@ -268,8 +268,8 @@ void nvm_generic_to_addr_mode(struct nvm_dev *dev, struct nvm_rq *rqd)
{
int i;

- if (rqd->nr_pages > 1) {
- for (i = 0; i < rqd->nr_pages; i++)
+ if (rqd->nr_ppas > 1) {
+ for (i = 0; i < rqd->nr_ppas; i++)
rqd->ppa_list[i] = generic_to_dev_addr(dev,
rqd->ppa_list[i]);
} else {
@@ -284,13 +284,13 @@ int nvm_set_rqd_ppalist(struct nvm_dev *dev, struct nvm_rq *rqd,
int i, plane_cnt, pl_idx;

if ((!vblk || dev->plane_mode == NVM_PLANE_SINGLE) && nr_ppas == 1) {
- rqd->nr_pages = nr_ppas;
+ rqd->nr_ppas = nr_ppas;
rqd->ppa_addr = ppas[0];

return 0;
}

- rqd->nr_pages = nr_ppas;
+ rqd->nr_ppas = nr_ppas;
rqd->ppa_list = nvm_dev_dma_alloc(dev, GFP_KERNEL, &rqd->dma_ppa_list);
if (!rqd->ppa_list) {
pr_err("nvm: failed to allocate dma memory\n");
@@ -302,7 +302,7 @@ int nvm_set_rqd_ppalist(struct nvm_dev *dev, struct nvm_rq *rqd,
rqd->ppa_list[i] = ppas[i];
} else {
plane_cnt = dev->plane_mode;
- rqd->nr_pages *= plane_cnt;
+ rqd->nr_ppas *= plane_cnt;

for (i = 0; i < nr_ppas; i++) {
for (pl_idx = 0; pl_idx < plane_cnt; pl_idx++) {
@@ -423,7 +423,7 @@ int nvm_submit_ppa_list(struct nvm_dev *dev, struct ppa_addr *ppa_list,

memset(&rqd, 0, sizeof(struct nvm_rq));

- rqd.nr_pages = nr_ppas;
+ rqd.nr_ppas = nr_ppas;
if (nr_ppas > 1)
rqd.ppa_list = ppa_list;
else
diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c
index 211d7f7..dc726d9 100644
--- a/drivers/lightnvm/gennvm.c
+++ b/drivers/lightnvm/gennvm.c
@@ -446,7 +446,7 @@ static void gennvm_mark_blk_bad(struct nvm_dev *dev, struct nvm_rq *rqd)
nvm_addr_to_generic_mode(dev, rqd);

/* look up blocks and mark them as bad */
- if (rqd->nr_pages == 1) {
+ if (rqd->nr_ppas == 1) {
gennvm_mark_blk(dev, rqd->ppa_addr, NVM_BLK_ST_BAD);
return;
}
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index 48862ead..72aca96 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -695,7 +695,7 @@ static void rrpc_end_io(struct nvm_rq *rqd)
{
struct rrpc *rrpc = container_of(rqd->ins, struct rrpc, instance);
struct rrpc_rq *rrqd = nvm_rq_to_pdu(rqd);
- uint8_t npages = rqd->nr_pages;
+ uint8_t npages = rqd->nr_ppas;
sector_t laddr = rrpc_get_laddr(rqd->bio) - npages;

if (bio_data_dir(rqd->bio) == WRITE)
@@ -883,7 +883,7 @@ static int rrpc_submit_io(struct rrpc *rrpc, struct bio *bio,
bio_get(bio);
rqd->bio = bio;
rqd->ins = &rrpc->instance;
- rqd->nr_pages = nr_pages;
+ rqd->nr_ppas = nr_pages;
rrq->flags = flags;

err = nvm_submit_io(rrpc->dev, rqd);
@@ -892,7 +892,7 @@ static int rrpc_submit_io(struct rrpc *rrpc, struct bio *bio,
bio_put(bio);
if (!(flags & NVM_IOTYPE_GC)) {
rrpc_unlock_rq(rrpc, rqd);
- if (rqd->nr_pages > 1)
+ if (rqd->nr_ppas > 1)
nvm_dev_dma_free(rrpc->dev,
rqd->ppa_list, rqd->dma_ppa_list);
}
diff --git a/drivers/lightnvm/rrpc.h b/drivers/lightnvm/rrpc.h
index 2653484..87e84b5 100644
--- a/drivers/lightnvm/rrpc.h
+++ b/drivers/lightnvm/rrpc.h
@@ -251,7 +251,7 @@ static inline void rrpc_unlock_laddr(struct rrpc *rrpc,
static inline void rrpc_unlock_rq(struct rrpc *rrpc, struct nvm_rq *rqd)
{
struct rrpc_inflight_rq *r = rrpc_get_inflight_rq(rqd);
- uint8_t pages = rqd->nr_pages;
+ uint8_t pages = rqd->nr_ppas;

BUG_ON((r->l_start + pages) > rrpc->nr_sects);

diff --git a/drivers/lightnvm/sysblk.c b/drivers/lightnvm/sysblk.c
index b98ca19..994697a 100644
--- a/drivers/lightnvm/sysblk.c
+++ b/drivers/lightnvm/sysblk.c
@@ -280,7 +280,7 @@ static int nvm_set_bb_tbl(struct nvm_dev *dev, struct sysblk_scan *s, int type)
nvm_set_rqd_ppalist(dev, &rqd, s->ppas, s->nr_ppas, 1);
nvm_generic_to_addr_mode(dev, &rqd);

- ret = dev->ops->set_bb_tbl(dev, &rqd.ppa_addr, rqd.nr_pages, type);
+ ret = dev->ops->set_bb_tbl(dev, &rqd.ppa_addr, rqd.nr_ppas, type);
nvm_free_rqd_ppalist(dev, &rqd);
if (ret) {
pr_err("nvm: sysblk failed bb mark\n");
diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
index 65de1e5..a0af055 100644
--- a/drivers/nvme/host/lightnvm.c
+++ b/drivers/nvme/host/lightnvm.c
@@ -471,7 +471,7 @@ static inline void nvme_nvm_rqtocmd(struct request *rq, struct nvm_rq *rqd,
c->ph_rw.spba = cpu_to_le64(rqd->ppa_addr.ppa);
c->ph_rw.metadata = cpu_to_le64(rqd->dma_meta_list);
c->ph_rw.control = cpu_to_le16(rqd->flags);
- c->ph_rw.length = cpu_to_le16(rqd->nr_pages - 1);
+ c->ph_rw.length = cpu_to_le16(rqd->nr_ppas - 1);

if (rqd->opcode == NVM_OP_HBWRITE || rqd->opcode == NVM_OP_HBREAD)
c->hb_rw.slba = cpu_to_le64(nvme_block_nr(ns,
@@ -542,7 +542,7 @@ static int nvme_nvm_erase_block(struct nvm_dev *dev, struct nvm_rq *rqd)
c.erase.opcode = NVM_OP_ERASE;
c.erase.nsid = cpu_to_le32(ns->ns_id);
c.erase.spba = cpu_to_le64(rqd->ppa_addr.ppa);
- c.erase.length = cpu_to_le16(rqd->nr_pages - 1);
+ c.erase.length = cpu_to_le16(rqd->nr_ppas - 1);

return nvme_submit_sync_cmd(q, (struct nvme_command *)&c, NULL, 0);
}
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index 6c02209..272a98b 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -246,7 +246,7 @@ struct nvm_rq {
nvm_end_io_fn *end_io;

uint8_t opcode;
- uint16_t nr_pages;
+ uint16_t nr_ppas;
uint16_t flags;

u64 ppa_status; /* ppa media status */
--
2.5.0
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