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authorMatias Bjørling <matias@cnexlabs.com>2017-01-31 13:17:17 +0100
committerJens Axboe <axboe@fb.com>2017-01-31 16:32:13 +0100
commit06894efea706b3cd4ce31e341ec51b4c62c34a86 (patch)
treed17b75b474e6b65fcc81cab7846a6cf9c67f8496 /drivers/lightnvm
parentlightnvm: add ioctls for vector I/Os (diff)
downloadlinux-06894efea706b3cd4ce31e341ec51b4c62c34a86.tar.xz
linux-06894efea706b3cd4ce31e341ec51b4c62c34a86.zip
lightnvm: use end_io callback instead of instance
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>
Diffstat (limited to 'drivers/lightnvm')
-rw-r--r--drivers/lightnvm/core.c7
-rw-r--r--drivers/lightnvm/rrpc.c7
-rw-r--r--drivers/lightnvm/rrpc.h3
3 files changed, 6 insertions, 11 deletions
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 80cd7677762d..4f4db991c4a6 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -773,17 +773,16 @@ void nvm_free_rqd_ppalist(struct nvm_dev *dev, struct nvm_rq *rqd)
}
EXPORT_SYMBOL(nvm_free_rqd_ppalist);
-void nvm_end_io(struct nvm_rq *rqd, int error)
+void nvm_end_io(struct nvm_rq *rqd)
{
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);
}
EXPORT_SYMBOL(nvm_end_io);
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index 9fb7de395915..e00b1d7b976f 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -779,7 +779,7 @@ static void rrpc_end_io_write(struct rrpc *rrpc, struct rrpc_rq *rrqd,
static void rrpc_end_io(struct nvm_rq *rqd)
{
- 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;
@@ -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 94e4d73116b2..fdb6ff902903 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;