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lightnvm: pblk: compress and reorder helper functions

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Through time, we have generated some redundant helper functions.
Refactor them to eliminate redundant and unnecessary code. Also, reorder
them to improve readability

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Javier González 2018-01-05 14:16:06 +01:00 committed by Jens Axboe
parent bd77b23b40
commit b1bcfda105
5 changed files with 72 additions and 99 deletions
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24
drivers/lightnvm/pblk-core.c
View File

@ -32,8 +32,8 @@ static void pblk_line_mark_bb(struct work_struct *work)
struct pblk_line *line;
int pos;
line = &pblk->lines[pblk_dev_ppa_to_line(*ppa)];
pos = pblk_dev_ppa_to_pos(&dev->geo, *ppa);
line = &pblk->lines[pblk_ppa_to_line(*ppa)];
pos = pblk_ppa_to_pos(&dev->geo, *ppa);
pr_err("pblk: failed to mark bb, line:%d, pos:%d\n",
line->id, pos);
@ -48,7 +48,7 @@ static void pblk_mark_bb(struct pblk *pblk, struct pblk_line *line,
{
struct nvm_tgt_dev *dev = pblk->dev;
struct nvm_geo *geo = &dev->geo;
int pos = pblk_dev_ppa_to_pos(geo, *ppa);
int pos = pblk_ppa_to_pos(geo, *ppa);
pr_debug("pblk: erase failed: line:%d, pos:%d\n", line->id, pos);
atomic_long_inc(&pblk->erase_failed);
@ -66,7 +66,7 @@ static void __pblk_end_io_erase(struct pblk *pblk, struct nvm_rq *rqd)
{
struct pblk_line *line;
line = &pblk->lines[pblk_dev_ppa_to_line(rqd->ppa_addr)];
line = &pblk->lines[pblk_ppa_to_line(rqd->ppa_addr)];
atomic_dec(&line->left_seblks);
if (rqd->error) {
@ -144,7 +144,7 @@ void pblk_map_invalidate(struct pblk *pblk, struct ppa_addr ppa)
BUG_ON(pblk_ppa_empty(ppa));
#endif
line_id = pblk_tgt_ppa_to_line(ppa);
line_id = pblk_ppa_to_line(ppa);
line = &pblk->lines[line_id];
paddr = pblk_dev_ppa_to_line_addr(pblk, ppa);
@ -650,7 +650,7 @@ next_rq:
} else {
for (i = 0; i < rqd.nr_ppas; ) {
struct ppa_addr ppa = addr_to_gen_ppa(pblk, paddr, id);
int pos = pblk_dev_ppa_to_pos(geo, ppa);
int pos = pblk_ppa_to_pos(geo, ppa);
int read_type = PBLK_READ_RANDOM;
if (pblk_io_aligned(pblk, rq_ppas))
@ -668,7 +668,7 @@ next_rq:
}
ppa = addr_to_gen_ppa(pblk, paddr, id);
pos = pblk_dev_ppa_to_pos(geo, ppa);
pos = pblk_ppa_to_pos(geo, ppa);
}
if (pblk_boundary_paddr_checks(pblk, paddr + min)) {
@ -854,8 +854,8 @@ static int pblk_blk_erase_sync(struct pblk *pblk, struct ppa_addr ppa)
struct nvm_geo *geo = &dev->geo;
pr_err("pblk: could not sync erase line:%d,blk:%d\n",
pblk_dev_ppa_to_line(ppa),
pblk_dev_ppa_to_pos(geo, ppa));
pblk_ppa_to_line(ppa),
pblk_ppa_to_pos(geo, ppa));
rqd.error = ret;
goto out;
@ -1561,8 +1561,8 @@ int pblk_blk_erase_async(struct pblk *pblk, struct ppa_addr ppa)
struct nvm_geo *geo = &dev->geo;
pr_err("pblk: could not async erase line:%d,blk:%d\n",
pblk_dev_ppa_to_line(ppa),
pblk_dev_ppa_to_pos(geo, ppa));
pblk_ppa_to_line(ppa),
pblk_ppa_to_pos(geo, ppa));
}
return err;
@ -1884,7 +1884,7 @@ void pblk_lookup_l2p_seq(struct pblk *pblk, struct ppa_addr *ppas,
/* If the L2P entry maps to a line, the reference is valid */
if (!pblk_ppa_empty(ppa) && !pblk_addr_in_cache(ppa)) {
int line_id = pblk_dev_ppa_to_line(ppa);
int line_id = pblk_ppa_to_line(ppa);
struct pblk_line *line = &pblk->lines[line_id];
kref_get(&line->ref);

2
drivers/lightnvm/pblk-rb.c
View File

@ -226,7 +226,7 @@ static int __pblk_rb_update_l2p(struct pblk_rb *rb, unsigned int to_update)
pblk_update_map_dev(pblk, w_ctx->lba, w_ctx->ppa,
entry->cacheline);
line = &pblk->lines[pblk_tgt_ppa_to_line(w_ctx->ppa)];
line = &pblk->lines[pblk_ppa_to_line(w_ctx->ppa)];
kref_put(&line->ref, pblk_line_put);
clean_wctx(w_ctx);
rb->l2p_update = (rb->l2p_update + 1) & (rb->nr_entries - 1);

4
drivers/lightnvm/pblk-read.c
View File

@ -141,7 +141,7 @@ static void pblk_read_put_rqd_kref(struct pblk *pblk, struct nvm_rq *rqd)
struct ppa_addr ppa = ppa_list[i];
struct pblk_line *line;
line = &pblk->lines[pblk_dev_ppa_to_line(ppa)];
line = &pblk->lines[pblk_ppa_to_line(ppa)];
kref_put(&line->ref, pblk_line_put_wq);
}
}
@ -270,7 +270,7 @@ static int pblk_fill_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd,
i = 0;
hole = find_first_zero_bit(read_bitmap, nr_secs);
do {
int line_id = pblk_dev_ppa_to_line(rqd->ppa_list[i]);
int line_id = pblk_ppa_to_line(rqd->ppa_list[i]);
struct pblk_line *line = &pblk->lines[line_id];
kref_put(&line->ref, pblk_line_put);

20
drivers/lightnvm/pblk-recovery.c
View File

@ -149,7 +149,7 @@ static int pblk_recov_l2p_from_emeta(struct pblk *pblk, struct pblk_line *line)
struct ppa_addr ppa;
int pos;
ppa = addr_to_pblk_ppa(pblk, i, line->id);
ppa = addr_to_gen_ppa(pblk, i, line->id);
pos = pblk_ppa_to_pos(geo, ppa);
/* Do not update bad blocks */
@ -263,12 +263,12 @@ next_read_rq:
int pos;
ppa = addr_to_gen_ppa(pblk, r_ptr_int, line->id);
pos = pblk_dev_ppa_to_pos(geo, ppa);
pos = pblk_ppa_to_pos(geo, ppa);
while (test_bit(pos, line->blk_bitmap)) {
r_ptr_int += pblk->min_write_pgs;
ppa = addr_to_gen_ppa(pblk, r_ptr_int, line->id);
pos = pblk_dev_ppa_to_pos(geo, ppa);
pos = pblk_ppa_to_pos(geo, ppa);
}
for (j = 0; j < pblk->min_write_pgs; j++, i++, r_ptr_int++)
@ -411,12 +411,12 @@ next_pad_rq:
int pos;
w_ptr = pblk_alloc_page(pblk, line, pblk->min_write_pgs);
ppa = addr_to_pblk_ppa(pblk, w_ptr, line->id);
ppa = addr_to_gen_ppa(pblk, w_ptr, line->id);
pos = pblk_ppa_to_pos(geo, ppa);
while (test_bit(pos, line->blk_bitmap)) {
w_ptr += pblk->min_write_pgs;
ppa = addr_to_pblk_ppa(pblk, w_ptr, line->id);
ppa = addr_to_gen_ppa(pblk, w_ptr, line->id);
pos = pblk_ppa_to_pos(geo, ppa);
}
@ -541,12 +541,12 @@ next_rq:
w_ptr = pblk_alloc_page(pblk, line, pblk->min_write_pgs);
ppa = addr_to_gen_ppa(pblk, w_ptr, line->id);
pos = pblk_dev_ppa_to_pos(geo, ppa);
pos = pblk_ppa_to_pos(geo, ppa);
while (test_bit(pos, line->blk_bitmap)) {
w_ptr += pblk->min_write_pgs;
ppa = addr_to_gen_ppa(pblk, w_ptr, line->id);
pos = pblk_dev_ppa_to_pos(geo, ppa);
pos = pblk_ppa_to_pos(geo, ppa);
}
for (j = 0; j < pblk->min_write_pgs; j++, i++, w_ptr++)
@ -672,12 +672,12 @@ next_rq:
paddr = pblk_alloc_page(pblk, line, pblk->min_write_pgs);
ppa = addr_to_gen_ppa(pblk, paddr, line->id);
pos = pblk_dev_ppa_to_pos(geo, ppa);
pos = pblk_ppa_to_pos(geo, ppa);
while (test_bit(pos, line->blk_bitmap)) {
paddr += pblk->min_write_pgs;
ppa = addr_to_gen_ppa(pblk, paddr, line->id);
pos = pblk_dev_ppa_to_pos(geo, ppa);
pos = pblk_ppa_to_pos(geo, ppa);
}
for (j = 0; j < pblk->min_write_pgs; j++, i++, paddr++)
@ -817,7 +817,7 @@ static u64 pblk_line_emeta_start(struct pblk *pblk, struct pblk_line *line)
while (emeta_secs) {
emeta_start--;
ppa = addr_to_pblk_ppa(pblk, emeta_start, line->id);
ppa = addr_to_gen_ppa(pblk, emeta_start, line->id);
pos = pblk_ppa_to_pos(geo, ppa);
if (!test_bit(pos, line->blk_bitmap))
emeta_secs--;

121
drivers/lightnvm/pblk.h
View File

@ -910,12 +910,7 @@ static inline int pblk_pad_distance(struct pblk *pblk)
return NVM_MEM_PAGE_WRITE * geo->all_luns * geo->sec_per_pl;
}
static inline int pblk_dev_ppa_to_line(struct ppa_addr p)
{
return p.g.blk;
}
static inline int pblk_tgt_ppa_to_line(struct ppa_addr p)
static inline int pblk_ppa_to_line(struct ppa_addr p)
{
return p.g.blk;
}
@ -925,10 +920,34 @@ static inline int pblk_ppa_to_pos(struct nvm_geo *geo, struct ppa_addr p)
return p.g.lun * geo->nr_chnls + p.g.ch;
}
/* A block within a line corresponds to the lun */
static inline int pblk_dev_ppa_to_pos(struct nvm_geo *geo, struct ppa_addr p)
static inline struct ppa_addr addr_to_gen_ppa(struct pblk *pblk, u64 paddr,
u64 line_id)
{
return p.g.lun * geo->nr_chnls + p.g.ch;
struct ppa_addr ppa;
ppa.ppa = 0;
ppa.g.blk = line_id;
ppa.g.pg = (paddr & pblk->ppaf.pg_mask) >> pblk->ppaf.pg_offset;
ppa.g.lun = (paddr & pblk->ppaf.lun_mask) >> pblk->ppaf.lun_offset;
ppa.g.ch = (paddr & pblk->ppaf.ch_mask) >> pblk->ppaf.ch_offset;
ppa.g.pl = (paddr & pblk->ppaf.pln_mask) >> pblk->ppaf.pln_offset;
ppa.g.sec = (paddr & pblk->ppaf.sec_mask) >> pblk->ppaf.sec_offset;
return ppa;
}
static inline u64 pblk_dev_ppa_to_line_addr(struct pblk *pblk,
struct ppa_addr p)
{
u64 paddr;
paddr = (u64)p.g.pg << pblk->ppaf.pg_offset;
paddr |= (u64)p.g.lun << pblk->ppaf.lun_offset;
paddr |= (u64)p.g.ch << pblk->ppaf.ch_offset;
paddr |= (u64)p.g.pl << pblk->ppaf.pln_offset;
paddr |= (u64)p.g.sec << pblk->ppaf.sec_offset;
return paddr;
}
static inline struct ppa_addr pblk_ppa32_to_ppa64(struct pblk *pblk, u32 ppa32)
@ -960,24 +979,6 @@ static inline struct ppa_addr pblk_ppa32_to_ppa64(struct pblk *pblk, u32 ppa32)
return ppa64;
}
static inline struct ppa_addr pblk_trans_map_get(struct pblk *pblk,
sector_t lba)
{
struct ppa_addr ppa;
if (pblk->ppaf_bitsize < 32) {
u32 *map = (u32 *)pblk->trans_map;
ppa = pblk_ppa32_to_ppa64(pblk, map[lba]);
} else {
struct ppa_addr *map = (struct ppa_addr *)pblk->trans_map;
ppa = map[lba];
}
return ppa;
}
static inline u32 pblk_ppa64_to_ppa32(struct pblk *pblk, struct ppa_addr ppa64)
{
u32 ppa32 = 0;
@ -999,6 +1000,24 @@ static inline u32 pblk_ppa64_to_ppa32(struct pblk *pblk, struct ppa_addr ppa64)
return ppa32;
}
static inline struct ppa_addr pblk_trans_map_get(struct pblk *pblk,
sector_t lba)
{
struct ppa_addr ppa;
if (pblk->ppaf_bitsize < 32) {
u32 *map = (u32 *)pblk->trans_map;
ppa = pblk_ppa32_to_ppa64(pblk, map[lba]);
} else {
struct ppa_addr *map = (struct ppa_addr *)pblk->trans_map;
ppa = map[lba];
}
return ppa;
}
static inline void pblk_trans_map_set(struct pblk *pblk, sector_t lba,
struct ppa_addr ppa)
{
@ -1013,21 +1032,6 @@ static inline void pblk_trans_map_set(struct pblk *pblk, sector_t lba,
}
}
static inline u64 pblk_dev_ppa_to_line_addr(struct pblk *pblk,
struct ppa_addr p)
{
u64 paddr;
paddr = 0;
paddr |= (u64)p.g.pg << pblk->ppaf.pg_offset;
paddr |= (u64)p.g.lun << pblk->ppaf.lun_offset;
paddr |= (u64)p.g.ch << pblk->ppaf.ch_offset;
paddr |= (u64)p.g.pl << pblk->ppaf.pln_offset;
paddr |= (u64)p.g.sec << pblk->ppaf.sec_offset;
return paddr;
}
static inline int pblk_ppa_empty(struct ppa_addr ppa_addr)
{
return (ppa_addr.ppa == ADDR_EMPTY);
@ -1066,32 +1070,6 @@ static inline struct ppa_addr pblk_cacheline_to_addr(int addr)
return p;
}
static inline struct ppa_addr addr_to_gen_ppa(struct pblk *pblk, u64 paddr,
u64 line_id)
{
struct ppa_addr ppa;
ppa.ppa = 0;
ppa.g.blk = line_id;
ppa.g.pg = (paddr & pblk->ppaf.pg_mask) >> pblk->ppaf.pg_offset;
ppa.g.lun = (paddr & pblk->ppaf.lun_mask) >> pblk->ppaf.lun_offset;
ppa.g.ch = (paddr & pblk->ppaf.ch_mask) >> pblk->ppaf.ch_offset;
ppa.g.pl = (paddr & pblk->ppaf.pln_mask) >> pblk->ppaf.pln_offset;
ppa.g.sec = (paddr & pblk->ppaf.sec_mask) >> pblk->ppaf.sec_offset;
return ppa;
}
static inline struct ppa_addr addr_to_pblk_ppa(struct pblk *pblk, u64 paddr,
u64 line_id)
{
struct ppa_addr ppa;
ppa = addr_to_gen_ppa(pblk, paddr, line_id);
return ppa;
}
static inline u32 pblk_calc_meta_header_crc(struct pblk *pblk,
struct line_header *header)
{
@ -1245,7 +1223,7 @@ static inline int pblk_check_io(struct pblk *pblk, struct nvm_rq *rqd)
for (i = 0; i < rqd->nr_ppas; i++) {
ppa = ppa_list[i];
line = &pblk->lines[pblk_dev_ppa_to_line(ppa)];
line = &pblk->lines[pblk_ppa_to_line(ppa)];
spin_lock(&line->lock);
if (line->state != PBLK_LINESTATE_OPEN) {
@ -1288,11 +1266,6 @@ static inline unsigned int pblk_get_secs(struct bio *bio)
return bio->bi_iter.bi_size / PBLK_EXPOSED_PAGE_SIZE;
}
static inline sector_t pblk_get_sector(sector_t lba)
{
return lba * NR_PHY_IN_LOG;
}
static inline void pblk_setup_uuid(struct pblk *pblk)
{
uuid_le uuid;