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-rw-r--r--drivers/lightnvm/gennvm.c62
-rw-r--r--drivers/lightnvm/rrpc.c7
2 files changed, 49 insertions, 20 deletions
diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c
index 3572ebbb50ce..9671e11356be 100644
--- a/drivers/lightnvm/gennvm.c
+++ b/drivers/lightnvm/gennvm.c
@@ -35,6 +35,45 @@ static const struct block_device_operations gen_fops = {
.owner = THIS_MODULE,
};
+static int gen_reserve_luns(struct nvm_dev *dev, struct nvm_target *t,
+ int lun_begin, int lun_end)
+{
+ struct gen_dev *gn = dev->mp;
+ struct nvm_lun *lun;
+ int i;
+
+ for (i = lun_begin; i <= lun_end; i++) {
+ if (test_and_set_bit(i, dev->lun_map)) {
+ pr_err("nvm: lun %d already allocated\n", i);
+ goto err;
+ }
+
+ lun = &gn->luns[i];
+ list_add_tail(&lun->list, &t->lun_list);
+ }
+
+ return 0;
+
+err:
+ while (--i > lun_begin) {
+ lun = &gn->luns[i];
+ clear_bit(i, dev->lun_map);
+ list_del(&lun->list);
+ }
+
+ return -EBUSY;
+}
+
+static void gen_release_luns(struct nvm_dev *dev, struct nvm_target *t)
+{
+ struct nvm_lun *lun, *tmp;
+
+ list_for_each_entry_safe(lun, tmp, &t->lun_list, list) {
+ WARN_ON(!test_and_clear_bit(lun->id, dev->lun_map));
+ list_del(&lun->list);
+ }
+}
+
static int gen_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
{
struct gen_dev *gn = dev->mp;
@@ -64,9 +103,14 @@ static int gen_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
if (!t)
return -ENOMEM;
+ INIT_LIST_HEAD(&t->lun_list);
+
+ if (gen_reserve_luns(dev, t, s->lun_begin, s->lun_end))
+ goto err_t;
+
tqueue = blk_alloc_queue_node(GFP_KERNEL, dev->q->node);
if (!tqueue)
- goto err_t;
+ goto err_reserve;
blk_queue_make_request(tqueue, tt->make_rq);
tdisk = alloc_disk(0);
@@ -105,6 +149,8 @@ err_init:
put_disk(tdisk);
err_queue:
blk_cleanup_queue(tqueue);
+err_reserve:
+ gen_release_luns(dev, t);
err_t:
kfree(t);
return -ENOMEM;
@@ -122,6 +168,7 @@ static void __gen_remove_target(struct nvm_target *t)
if (tt->exit)
tt->exit(tdisk->private_data);
+ gen_release_luns(t->dev, t);
put_disk(tdisk);
list_del(&t->list);
@@ -253,6 +300,7 @@ static int gen_luns_init(struct nvm_dev *dev, struct gen_dev *gn)
INIT_LIST_HEAD(&lun->free_list);
INIT_LIST_HEAD(&lun->used_list);
INIT_LIST_HEAD(&lun->bb_list);
+ INIT_LIST_HEAD(&lun->list);
spin_lock_init(&lun->lock);
@@ -569,16 +617,6 @@ static int gen_erase_blk(struct nvm_dev *dev, struct nvm_block *blk, int flags)
return nvm_erase_ppa(dev, &addr, 1, flags);
}
-static int gen_reserve_lun(struct nvm_dev *dev, int lunid)
-{
- return test_and_set_bit(lunid, dev->lun_map);
-}
-
-static void gen_release_lun(struct nvm_dev *dev, int lunid)
-{
- WARN_ON(!test_and_clear_bit(lunid, dev->lun_map));
-}
-
static struct nvm_lun *gen_get_lun(struct nvm_dev *dev, int lunid)
{
struct gen_dev *gn = dev->mp;
@@ -625,8 +663,6 @@ static struct nvmm_type gen = {
.mark_blk = gen_mark_blk,
.get_lun = gen_get_lun,
- .reserve_lun = gen_reserve_lun,
- .release_lun = gen_release_lun,
.lun_info_print = gen_lun_info_print,
.get_area = gen_get_area,
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index 34d2ebf90ed6..88e0d0677b09 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -1126,7 +1126,6 @@ static void rrpc_core_free(struct rrpc *rrpc)
static void rrpc_luns_free(struct rrpc *rrpc)
{
- struct nvm_dev *dev = rrpc->dev;
struct nvm_lun *lun;
struct rrpc_lun *rlun;
int i;
@@ -1139,7 +1138,6 @@ static void rrpc_luns_free(struct rrpc *rrpc)
lun = rlun->parent;
if (!lun)
break;
- dev->mt->release_lun(dev, lun->id);
vfree(rlun->blocks);
}
@@ -1169,11 +1167,6 @@ static int rrpc_luns_init(struct rrpc *rrpc, int lun_begin, int lun_end)
int lunid = lun_begin + i;
struct nvm_lun *lun;
- if (dev->mt->reserve_lun(dev, lunid)) {
- pr_err("rrpc: lun %u is already allocated\n", lunid);
- goto err;
- }
-
lun = dev->mt->get_lun(dev, lunid);
if (!lun)
goto err;