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@xxxxxxxxxxxx>
---
drivers/lightnvm/core.c | 5 ++---
drivers/lightnvm/rrpc.c | 11 +++++------
drivers/lightnvm/rrpc.h | 3 ---
include/linux/lightnvm.h | 11 +++--------
4 files changed, 10 insertions(+), 20 deletions(-)
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 80cd767..4abd334 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -776,14 +776,13 @@ EXPORT_SYMBOL(nvm_free_rqd_ppalist);
void nvm_end_io(struct nvm_rq *rqd, int error)
{
struct nvm_tgt_dev *tgt_dev = rqd->dev;
- struct nvm_tgt_instance *ins = rqd->ins;
/* Convert address space */
if (tgt_dev)
nvm_rq_dev_to_tgt(tgt_dev, rqd);
- rqd->error = error;
- ins->tt->end_io(rqd);
+ if (rqd->end_io)
+ rqd->end_io(rqd, error);
}
EXPORT_SYMBOL(nvm_end_io);
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index 9fb7de3..c399f55 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -777,16 +777,16 @@ static void rrpc_end_io_write(struct rrpc *rrpc, struct rrpc_rq *rrqd,
}
}
-static void rrpc_end_io(struct nvm_rq *rqd)
+static void rrpc_end_io(struct nvm_rq *rqd, int error)
{
- struct rrpc *rrpc = container_of(rqd->ins, struct rrpc, instance);
+ struct rrpc *rrpc = rqd->private;
struct nvm_tgt_dev *dev = rrpc->dev;
struct rrpc_rq *rrqd = nvm_rq_to_pdu(rqd);
uint8_t npages = rqd->nr_ppas;
sector_t laddr = rrpc_get_laddr(rqd->bio) - npages;
if (bio_data_dir(rqd->bio) == WRITE) {
- if (rqd->error == NVM_RSP_ERR_FAILWRITE)
+ if (error == NVM_RSP_ERR_FAILWRITE)
rrpc_mark_bad_block(rrpc, rqd);
rrpc_end_io_write(rrpc, rrqd, laddr, npages);
@@ -972,8 +972,9 @@ static int rrpc_submit_io(struct rrpc *rrpc, struct bio *bio,
bio_get(bio);
rqd->bio = bio;
- rqd->ins = &rrpc->instance;
+ rqd->private = rrpc;
rqd->nr_ppas = nr_pages;
+ rqd->end_io = rrpc_end_io;
rrq->flags = flags;
err = nvm_submit_io(dev, rqd);
@@ -1532,7 +1533,6 @@ static void *rrpc_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk)
if (!rrpc)
return ERR_PTR(-ENOMEM);
- rrpc->instance.tt = &tt_rrpc;
rrpc->dev = dev;
rrpc->disk = tdisk;
@@ -1611,7 +1611,6 @@ static struct nvm_tgt_type tt_rrpc = {
.make_rq = rrpc_make_rq,
.capacity = rrpc_capacity,
- .end_io = rrpc_end_io,
.init = rrpc_init,
.exit = rrpc_exit,
diff --git a/drivers/lightnvm/rrpc.h b/drivers/lightnvm/rrpc.h
index 94e4d73..fdb6ff9 100644
--- a/drivers/lightnvm/rrpc.h
+++ b/drivers/lightnvm/rrpc.h
@@ -102,9 +102,6 @@ struct rrpc_lun {
};
struct rrpc {
- /* instance must be kept in top to resolve rrpc in unprep */
- struct nvm_tgt_instance instance;
-
struct nvm_tgt_dev *dev;
struct gendisk *disk;
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index ce0b2da..f6e2376 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -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
@@ -224,10 +220,9 @@ struct nvm_tgt_instance {
#define NVM_VERSION_PATCH 0
struct nvm_rq;
-typedef void (nvm_end_io_fn)(struct nvm_rq *);
+typedef void (nvm_end_io_fn)(struct nvm_rq *, int);
struct nvm_rq {
- struct nvm_tgt_instance *ins;
struct nvm_tgt_dev *dev;
struct bio *bio;
@@ -250,7 +245,8 @@ struct nvm_rq {
uint16_t flags;
u64 ppa_status; /* ppa media status */
- int error;
+
+ void *private;
};
static inline struct nvm_rq *nvm_rq_from_pdu(void *pdu)
@@ -450,7 +446,6 @@ 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;
--
2.9.3
--
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