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authorHannes Reinecke <hare@suse.de>2020-01-31 13:37:36 +0300
committerIlya Dryomov <idryomov@gmail.com>2020-03-30 13:42:40 +0300
commit679a97d28627647e5a68dd684537e499cd741e2a (patch)
tree5741e64eb516ceac00d168c61c7d1a02c9464149 /drivers/block/rbd.c
parentbbb480ab05b2c148d8f8378660bfddd46761e86e (diff)
downloadlinux-679a97d28627647e5a68dd684537e499cd741e2a.tar.xz
rbd: kill img_request kref
The reference counter is never increased, so we can as well call rbd_img_request_destroy() directly and drop the kref. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'drivers/block/rbd.c')
-rw-r--r--drivers/block/rbd.c24
1 files changed, 5 insertions, 19 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 162fd1df06dd..b077c0fb9f70 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -349,7 +349,6 @@ struct rbd_img_request {
struct pending_result pending;
struct work_struct work;
int work_result;
- struct kref kref;
};
#define for_each_obj_request(ireq, oreq) \
@@ -1320,15 +1319,6 @@ static void rbd_obj_request_put(struct rbd_obj_request *obj_request)
kref_put(&obj_request->kref, rbd_obj_request_destroy);
}
-static void rbd_img_request_destroy(struct kref *kref);
-static void rbd_img_request_put(struct rbd_img_request *img_request)
-{
- rbd_assert(img_request != NULL);
- dout("%s: img %p (was %d)\n", __func__, img_request,
- kref_read(&img_request->kref));
- kref_put(&img_request->kref, rbd_img_request_destroy);
-}
-
static inline void rbd_img_obj_request_add(struct rbd_img_request *img_request,
struct rbd_obj_request *obj_request)
{
@@ -1656,19 +1646,15 @@ static struct rbd_img_request *rbd_img_request_create(
INIT_LIST_HEAD(&img_request->lock_item);
INIT_LIST_HEAD(&img_request->object_extents);
mutex_init(&img_request->state_mutex);
- kref_init(&img_request->kref);
return img_request;
}
-static void rbd_img_request_destroy(struct kref *kref)
+static void rbd_img_request_destroy(struct rbd_img_request *img_request)
{
- struct rbd_img_request *img_request;
struct rbd_obj_request *obj_request;
struct rbd_obj_request *next_obj_request;
- img_request = container_of(kref, struct rbd_img_request, kref);
-
dout("%s: img %p\n", __func__, img_request);
WARN_ON(!list_empty(&img_request->lock_item));
@@ -2885,7 +2871,7 @@ static int rbd_obj_read_from_parent(struct rbd_obj_request *obj_req)
obj_req->copyup_bvecs);
}
if (ret) {
- rbd_img_request_put(child_img_req);
+ rbd_img_request_destroy(child_img_req);
return ret;
}
@@ -3644,7 +3630,7 @@ again:
if (test_bit(IMG_REQ_CHILD, &img_req->flags)) {
struct rbd_obj_request *obj_req = img_req->obj_request;
- rbd_img_request_put(img_req);
+ rbd_img_request_destroy(img_req);
if (__rbd_obj_handle_request(obj_req, &result)) {
img_req = obj_req->img_request;
goto again;
@@ -3652,7 +3638,7 @@ again:
} else {
struct request *rq = img_req->rq;
- rbd_img_request_put(img_req);
+ rbd_img_request_destroy(img_req);
blk_mq_end_request(rq, errno_to_blk_status(result));
}
}
@@ -4798,7 +4784,7 @@ static void rbd_queue_workfn(struct work_struct *work)
return;
err_img_request:
- rbd_img_request_put(img_request);
+ rbd_img_request_destroy(img_request);
err_rq:
if (result)
rbd_warn(rbd_dev, "%s %llx at %llx result %d",