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lightnvm: pblk: remove debug from pblk_[down/up]_page

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Remove the debug only iteration within __pblk_down_page, which
then allows us to reduce the number of arguments down to pblk and
the parallel unit from the functions that calls it. Simplifying the
callers logic considerably.

Also, rename the functions pblk_[down/up]_page to
pblk_[down/up]_chunk, to communicate that it manages the write
pointer of the chunk. Note that it also protects the parallel unit
such that at most one chunk is active per parallel unit.

Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Reviewed-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Matias Bjørling
2018-10-09 13:11:51 +02:00
committed by Jens Axboe
parent 765462fa4c
commit 43241cfe47
5 changed files with 19 additions and 35 deletions
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6
drivers/lightnvm/pblk.h
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@@ -823,10 +823,10 @@ u64 pblk_alloc_page(struct pblk *pblk, struct pblk_line *line, int nr_secs);
u64 __pblk_alloc_page(struct pblk *pblk, struct pblk_line *line, int nr_secs);
int pblk_calc_secs(struct pblk *pblk, unsigned long secs_avail,
unsigned long secs_to_flush);
void pblk_up_page(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas);
void pblk_down_rq(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas,
void pblk_down_rq(struct pblk *pblk, struct ppa_addr ppa,
unsigned long *lun_bitmap);
void pblk_down_page(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas);
void pblk_down_chunk(struct pblk *pblk, struct ppa_addr ppa);
void pblk_up_chunk(struct pblk *pblk, struct ppa_addr ppa);
void pblk_up_rq(struct pblk *pblk, unsigned long *lun_bitmap);
int pblk_bio_add_pages(struct pblk *pblk, struct bio *bio, gfp_t flags,
int nr_pages);