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lightnvm: pblk: compress and reorder helper functions

Bläddra i källkod 
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
committad av Jens Axboe
förälder bd77b23b40
incheckning b1bcfda105
5 ändrade filer med 72 tillägg och 99 borttagningar
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121
drivers/lightnvm/pblk.h
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@@ -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;