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path: root/drivers/lightnvm/pblk-core.c
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Diffstat (limited to 'drivers/lightnvm/pblk-core.c')
-rw-r--r--drivers/lightnvm/pblk-core.c116
1 files changed, 13 insertions, 103 deletions
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index f546e6f28b8a..b413bafe93fd 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -507,7 +507,7 @@ void pblk_set_sec_per_write(struct pblk *pblk, int sec_per_write)
pblk->sec_per_write = sec_per_write;
}
-int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd)
+int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd, void *buf)
{
struct nvm_tgt_dev *dev = pblk->dev;
@@ -518,7 +518,7 @@ int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd)
return NVM_IO_ERR;
#endif
- return nvm_submit_io(dev, rqd);
+ return nvm_submit_io(dev, rqd, buf);
}
void pblk_check_chunk_state_update(struct pblk *pblk, struct nvm_rq *rqd)
@@ -541,7 +541,7 @@ void pblk_check_chunk_state_update(struct pblk *pblk, struct nvm_rq *rqd)
}
}
-int pblk_submit_io_sync(struct pblk *pblk, struct nvm_rq *rqd)
+int pblk_submit_io_sync(struct pblk *pblk, struct nvm_rq *rqd, void *buf)
{
struct nvm_tgt_dev *dev = pblk->dev;
int ret;
@@ -553,7 +553,7 @@ int pblk_submit_io_sync(struct pblk *pblk, struct nvm_rq *rqd)
return NVM_IO_ERR;
#endif
- ret = nvm_submit_io_sync(dev, rqd);
+ ret = nvm_submit_io_sync(dev, rqd, buf);
if (trace_pblk_chunk_state_enabled() && !ret &&
rqd->opcode == NVM_OP_PWRITE)
@@ -562,65 +562,19 @@ int pblk_submit_io_sync(struct pblk *pblk, struct nvm_rq *rqd)
return ret;
}
-int pblk_submit_io_sync_sem(struct pblk *pblk, struct nvm_rq *rqd)
+static int pblk_submit_io_sync_sem(struct pblk *pblk, struct nvm_rq *rqd,
+ void *buf)
{
struct ppa_addr *ppa_list = nvm_rq_to_ppa_list(rqd);
int ret;
pblk_down_chunk(pblk, ppa_list[0]);
- ret = pblk_submit_io_sync(pblk, rqd);
+ ret = pblk_submit_io_sync(pblk, rqd, buf);
pblk_up_chunk(pblk, ppa_list[0]);
return ret;
}
-static void pblk_bio_map_addr_endio(struct bio *bio)
-{
- bio_put(bio);
-}
-
-struct bio *pblk_bio_map_addr(struct pblk *pblk, void *data,
- unsigned int nr_secs, unsigned int len,
- int alloc_type, gfp_t gfp_mask)
-{
- struct nvm_tgt_dev *dev = pblk->dev;
- void *kaddr = data;
- struct page *page;
- struct bio *bio;
- int i, ret;
-
- if (alloc_type == PBLK_KMALLOC_META)
- return bio_map_kern(dev->q, kaddr, len, gfp_mask);
-
- bio = bio_kmalloc(gfp_mask, nr_secs);
- if (!bio)
- return ERR_PTR(-ENOMEM);
-
- for (i = 0; i < nr_secs; i++) {
- page = vmalloc_to_page(kaddr);
- if (!page) {
- pblk_err(pblk, "could not map vmalloc bio\n");
- bio_put(bio);
- bio = ERR_PTR(-ENOMEM);
- goto out;
- }
-
- ret = bio_add_pc_page(dev->q, bio, page, PAGE_SIZE, 0);
- if (ret != PAGE_SIZE) {
- pblk_err(pblk, "could not add page to bio\n");
- bio_put(bio);
- bio = ERR_PTR(-ENOMEM);
- goto out;
- }
-
- kaddr += PAGE_SIZE;
- }
-
- bio->bi_end_io = pblk_bio_map_addr_endio;
-out:
- return bio;
-}
-
int pblk_calc_secs(struct pblk *pblk, unsigned long secs_avail,
unsigned long secs_to_flush, bool skip_meta)
{
@@ -722,9 +676,7 @@ u64 pblk_line_smeta_start(struct pblk *pblk, struct pblk_line *line)
int pblk_line_smeta_read(struct pblk *pblk, struct pblk_line *line)
{
- struct nvm_tgt_dev *dev = pblk->dev;
struct pblk_line_meta *lm = &pblk->lm;
- struct bio *bio;
struct ppa_addr *ppa_list;
struct nvm_rq rqd;
u64 paddr = pblk_line_smeta_start(pblk, line);
@@ -736,16 +688,6 @@ int pblk_line_smeta_read(struct pblk *pblk, struct pblk_line *line)
if (ret)
return ret;
- bio = bio_map_kern(dev->q, line->smeta, lm->smeta_len, GFP_KERNEL);
- if (IS_ERR(bio)) {
- ret = PTR_ERR(bio);
- goto clear_rqd;
- }
-
- bio->bi_iter.bi_sector = 0; /* internal bio */
- bio_set_op_attrs(bio, REQ_OP_READ, 0);
-
- rqd.bio = bio;
rqd.opcode = NVM_OP_PREAD;
rqd.nr_ppas = lm->smeta_sec;
rqd.is_seq = 1;
@@ -754,10 +696,9 @@ int pblk_line_smeta_read(struct pblk *pblk, struct pblk_line *line)
for (i = 0; i < lm->smeta_sec; i++, paddr++)
ppa_list[i] = addr_to_gen_ppa(pblk, paddr, line->id);
- ret = pblk_submit_io_sync(pblk, &rqd);
+ ret = pblk_submit_io_sync(pblk, &rqd, line->smeta);
if (ret) {
pblk_err(pblk, "smeta I/O submission failed: %d\n", ret);
- bio_put(bio);
goto clear_rqd;
}
@@ -776,9 +717,7 @@ clear_rqd:
static int pblk_line_smeta_write(struct pblk *pblk, struct pblk_line *line,
u64 paddr)
{
- struct nvm_tgt_dev *dev = pblk->dev;
struct pblk_line_meta *lm = &pblk->lm;
- struct bio *bio;
struct ppa_addr *ppa_list;
struct nvm_rq rqd;
__le64 *lba_list = emeta_to_lbas(pblk, line->emeta->buf);
@@ -791,16 +730,6 @@ static int pblk_line_smeta_write(struct pblk *pblk, struct pblk_line *line,
if (ret)
return ret;
- bio = bio_map_kern(dev->q, line->smeta, lm->smeta_len, GFP_KERNEL);
- if (IS_ERR(bio)) {
- ret = PTR_ERR(bio);
- goto clear_rqd;
- }
-
- bio->bi_iter.bi_sector = 0; /* internal bio */
- bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
-
- rqd.bio = bio;
rqd.opcode = NVM_OP_PWRITE;
rqd.nr_ppas = lm->smeta_sec;
rqd.is_seq = 1;
@@ -814,10 +743,9 @@ static int pblk_line_smeta_write(struct pblk *pblk, struct pblk_line *line,
meta->lba = lba_list[paddr] = addr_empty;
}
- ret = pblk_submit_io_sync_sem(pblk, &rqd);
+ ret = pblk_submit_io_sync_sem(pblk, &rqd, line->smeta);
if (ret) {
pblk_err(pblk, "smeta I/O submission failed: %d\n", ret);
- bio_put(bio);
goto clear_rqd;
}
@@ -838,10 +766,8 @@ int pblk_line_emeta_read(struct pblk *pblk, struct pblk_line *line,
{
struct nvm_tgt_dev *dev = pblk->dev;
struct nvm_geo *geo = &dev->geo;
- struct pblk_line_mgmt *l_mg = &pblk->l_mg;
struct pblk_line_meta *lm = &pblk->lm;
void *ppa_list_buf, *meta_list;
- struct bio *bio;
struct ppa_addr *ppa_list;
struct nvm_rq rqd;
u64 paddr = line->emeta_ssec;
@@ -867,17 +793,6 @@ next_rq:
rq_ppas = pblk_calc_secs(pblk, left_ppas, 0, false);
rq_len = rq_ppas * geo->csecs;
- bio = pblk_bio_map_addr(pblk, emeta_buf, rq_ppas, rq_len,
- l_mg->emeta_alloc_type, GFP_KERNEL);
- if (IS_ERR(bio)) {
- ret = PTR_ERR(bio);
- goto free_rqd_dma;
- }
-
- bio->bi_iter.bi_sector = 0; /* internal bio */
- bio_set_op_attrs(bio, REQ_OP_READ, 0);
-
- rqd.bio = bio;
rqd.meta_list = meta_list;
rqd.ppa_list = ppa_list_buf;
rqd.dma_meta_list = dma_meta_list;
@@ -896,7 +811,6 @@ next_rq:
while (test_bit(pos, line->blk_bitmap)) {
paddr += min;
if (pblk_boundary_paddr_checks(pblk, paddr)) {
- bio_put(bio);
ret = -EINTR;
goto free_rqd_dma;
}
@@ -906,7 +820,6 @@ next_rq:
}
if (pblk_boundary_paddr_checks(pblk, paddr + min)) {
- bio_put(bio);
ret = -EINTR;
goto free_rqd_dma;
}
@@ -915,10 +828,9 @@ next_rq:
ppa_list[i] = addr_to_gen_ppa(pblk, paddr, line_id);
}
- ret = pblk_submit_io_sync(pblk, &rqd);
+ ret = pblk_submit_io_sync(pblk, &rqd, emeta_buf);
if (ret) {
pblk_err(pblk, "emeta I/O submission failed: %d\n", ret);
- bio_put(bio);
goto free_rqd_dma;
}
@@ -963,7 +875,7 @@ static int pblk_blk_erase_sync(struct pblk *pblk, struct ppa_addr ppa)
/* The write thread schedules erases so that it minimizes disturbances
* with writes. Thus, there is no need to take the LUN semaphore.
*/
- ret = pblk_submit_io_sync(pblk, &rqd);
+ ret = pblk_submit_io_sync(pblk, &rqd, NULL);
rqd.private = pblk;
__pblk_end_io_erase(pblk, &rqd);
@@ -1792,7 +1704,7 @@ int pblk_blk_erase_async(struct pblk *pblk, struct ppa_addr ppa)
/* The write thread schedules erases so that it minimizes disturbances
* with writes. Thus, there is no need to take the LUN semaphore.
*/
- err = pblk_submit_io(pblk, rqd);
+ err = pblk_submit_io(pblk, rqd, NULL);
if (err) {
struct nvm_tgt_dev *dev = pblk->dev;
struct nvm_geo *geo = &dev->geo;
@@ -1923,13 +1835,11 @@ void pblk_line_close_meta(struct pblk *pblk, struct pblk_line *line)
static void pblk_save_lba_list(struct pblk *pblk, struct pblk_line *line)
{
struct pblk_line_meta *lm = &pblk->lm;
- struct pblk_line_mgmt *l_mg = &pblk->l_mg;
unsigned int lba_list_size = lm->emeta_len[2];
struct pblk_w_err_gc *w_err_gc = line->w_err_gc;
struct pblk_emeta *emeta = line->emeta;
- w_err_gc->lba_list = pblk_malloc(lba_list_size,
- l_mg->emeta_alloc_type, GFP_KERNEL);
+ w_err_gc->lba_list = kvmalloc(lba_list_size, GFP_KERNEL);
memcpy(w_err_gc->lba_list, emeta_to_lbas(pblk, emeta->buf),
lba_list_size);
}
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