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authorJavier González2017-01-31 13:17:20 +0100
committerJens Axboe2017-01-31 08:32:13 -0700
commit9a69b0ed6257ae5e71c99bf21ce53f98c558476a (patch)
tree8f414b478b2a105851af285af7f2861e1a77aa24 /drivers
parentdeccf5a52ea59843f5575cb49fe532c7cb8801e4 (diff)
lightnvm: allow targets to use sysfs
In order to register through the sysfs interface, a driver needs to know its kobject. On a disk structure, this happens when the partition information is added (device_add_disk), which for lightnvm takes place after the target has been initialized. This means that on target initialization, the kboject has not been created yet. This patch adds a target function to let targets initialize their own kboject as a child of the disk kobject. Signed-off-by: Javier González <javier@cnexlabs.com> Added exit typedef and passed gendisk instead of void pointer for exit. Signed-off-by: Matias Bjørling <matias@cnexlabs.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/lightnvm/core.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index b2cd3d6f2a31..9bfe0352d093 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -289,6 +289,9 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
set_capacity(tdisk, tt->capacity(targetdata));
add_disk(tdisk);
+ if (tt->sysfs_init && tt->sysfs_init(tdisk))
+ goto err_sysfs;
+
t->type = tt;
t->disk = tdisk;
t->dev = tgt_dev;
@@ -298,6 +301,9 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
mutex_unlock(&dev->mlock);
return 0;
+err_sysfs:
+ if (tt->exit)
+ tt->exit(targetdata);
err_init:
put_disk(tdisk);
err_queue:
@@ -320,6 +326,9 @@ static void __nvm_remove_target(struct nvm_target *t)
del_gendisk(tdisk);
blk_cleanup_queue(q);
+ if (tt->sysfs_exit)
+ tt->sysfs_exit(tdisk);
+
if (tt->exit)
tt->exit(tdisk->private_data);