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lightnvm: use end_io callback instead of instance

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When the lightnvm core had the "gennvm" layer between the device and the
target, there was a need for the core to be able to figure out which
target it should send an end_io callback to. Leading to a "double"
end_io, first for the media manager instance, and then for the target
instance. Now that core and gennvm is merged, there is no longer a need
for this, and a single end_io callback will do.

Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Matias Bjørling 2017-01-31 13:17:17 +01:00 • committed by Jens Axboe
parent 84d4add793
commit 06894efea7
6 changed files with 13 additions and 20 deletions
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10
include/linux/lightnvm.h
View file

@ -213,10 +213,6 @@ struct nvm_target {
struct gendisk *disk;
};
struct nvm_tgt_instance {
struct nvm_tgt_type *tt;
};
#define ADDR_EMPTY (~0ULL)
#define NVM_VERSION_MAJOR 1
@ -227,7 +223,6 @@ struct nvm_rq;
typedef void (nvm_end_io_fn)(struct nvm_rq *);
struct nvm_rq {
struct nvm_tgt_instance *ins;
struct nvm_tgt_dev *dev;
struct bio *bio;
@ -251,6 +246,8 @@ struct nvm_rq {
u64 ppa_status; /* ppa media status */
int error;
void *private;
};
static inline struct nvm_rq *nvm_rq_from_pdu(void *pdu)
@ -450,7 +447,6 @@ struct nvm_tgt_type {
/* target entry points */
nvm_tgt_make_rq_fn *make_rq;
nvm_tgt_capacity_fn *capacity;
nvm_end_io_fn *end_io;
/* module-specific init/teardown */
nvm_tgt_init_fn *init;
@ -484,7 +480,7 @@ extern int nvm_get_l2p_tbl(struct nvm_tgt_dev *, u64, u32, nvm_l2p_update_fn *,
void *);
extern int nvm_get_area(struct nvm_tgt_dev *, sector_t *, sector_t);
extern void nvm_put_area(struct nvm_tgt_dev *, sector_t);
extern void nvm_end_io(struct nvm_rq *, int);
extern void nvm_end_io(struct nvm_rq *);
extern int nvm_bb_tbl_fold(struct nvm_dev *, u8 *, int);
extern int nvm_get_tgt_bb_tbl(struct nvm_tgt_dev *, struct ppa_addr, u8 *);