rnbd-srv: remove rnbd_dev_{open,close}

These can be trivially open coded in the callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Link: https://lore.kernel.org/r/20220909131509.3263924-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/block/rnbd/Makefile b/drivers/block/rnbd/Makefile
index 5fc05e6..40b3163 100644 (file)
--- a/drivers/block/rnbd/Makefile
+++ b/drivers/block/rnbd/Makefile
@@ -10,7 +10,6 @@ CFLAGS_rnbd-srv-trace.o = -I$(src)
 
 rnbd-server-y := rnbd-common.o \
                  rnbd-srv.o \
-                 rnbd-srv-dev.o \
                  rnbd-srv-sysfs.o \
                  rnbd-srv-trace.o
 

diff --git a/drivers/block/rnbd/rnbd-srv-dev.c b/drivers/block/rnbd/rnbd-srv-dev.c
deleted file mode 100644 (file)
index 38131fa..0000000
--- a/drivers/block/rnbd/rnbd-srv-dev.c
+++ /dev/null
@@ -1,42 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * RDMA Network Block Driver
- *
- * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
- * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
- * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
- */
-#undef pr_fmt
-#define pr_fmt(fmt) KBUILD_MODNAME " L" __stringify(__LINE__) ": " fmt
-
-#include "rnbd-srv-dev.h"
-#include "rnbd-log.h"
-
-struct rnbd_dev *rnbd_dev_open(const char *path, fmode_t flags)
-{
-       struct rnbd_dev *dev;
-       int ret;
-
-       dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-       if (!dev)
-               return ERR_PTR(-ENOMEM);
-
-       dev->bdev = blkdev_get_by_path(path, flags, THIS_MODULE);
-       ret = PTR_ERR_OR_ZERO(dev->bdev);
-       if (ret)
-               goto err;
-
-       dev->blk_open_flags = flags;
-
-       return dev;
-
-err:
-       kfree(dev);
-       return ERR_PTR(ret);
-}
-
-void rnbd_dev_close(struct rnbd_dev *dev)
-{
-       blkdev_put(dev->bdev, dev->blk_open_flags);
-       kfree(dev);
-}

diff --git a/drivers/block/rnbd/rnbd-srv-dev.h b/drivers/block/rnbd/rnbd-srv-dev.h
index 328dc91..abaf77d 100644 (file)
--- a/drivers/block/rnbd/rnbd-srv-dev.h
+++ b/drivers/block/rnbd/rnbd-srv-dev.h
@@ -17,16 +17,4 @@ struct rnbd_dev {
        fmode_t                 blk_open_flags;
 };
 
-/**
- * rnbd_dev_open() - Open a device
- * @path:      path to open
- * @flags:     open flags
- */
-struct rnbd_dev *rnbd_dev_open(const char *path, fmode_t flags);
-
-/**
- * rnbd_dev_close() - Close a device
- */
-void rnbd_dev_close(struct rnbd_dev *dev);
-
 #endif /* RNBD_SRV_DEV_H */

diff --git a/drivers/block/rnbd/rnbd-srv.c b/drivers/block/rnbd/rnbd-srv.c
index d487281..e9c8a72 100644 (file)
--- a/drivers/block/rnbd/rnbd-srv.c
+++ b/drivers/block/rnbd/rnbd-srv.c
@@ -220,7 +220,9 @@ void rnbd_destroy_sess_dev(struct rnbd_srv_sess_dev *sess_dev, bool keep_id)
        rnbd_put_sess_dev(sess_dev);
        wait_for_completion(&dc); /* wait for inflights to drop to zero */
 
-       rnbd_dev_close(sess_dev->rnbd_dev);
+       blkdev_put(sess_dev->rnbd_dev->bdev,
+                  sess_dev->rnbd_dev->blk_open_flags);
+       kfree(sess_dev->rnbd_dev);
        mutex_lock(&sess_dev->dev->lock);
        list_del(&sess_dev->dev_list);
        if (sess_dev->open_flags & FMODE_WRITE)
@@ -721,11 +723,19 @@ static int process_msg_open(struct rnbd_srv_session *srv_sess,
                goto reject;
        }
 
-       rnbd_dev = rnbd_dev_open(full_path, open_flags);
-       if (IS_ERR(rnbd_dev)) {
-               pr_err("Opening device '%s' on session %s failed, failed to open the block device, err: %ld\n",
-                      full_path, srv_sess->sessname, PTR_ERR(rnbd_dev));
-               ret = PTR_ERR(rnbd_dev);
+       rnbd_dev = kzalloc(sizeof(*rnbd_dev), GFP_KERNEL);
+       if (!rnbd_dev) {
+               ret = -ENOMEM;
+               goto free_path;
+       }
+
+       rnbd_dev->blk_open_flags = open_flags;
+       rnbd_dev->bdev = blkdev_get_by_path(full_path, open_flags, THIS_MODULE);
+       if (IS_ERR(rnbd_dev->bdev)) {
+               ret = PTR_ERR(rnbd_dev->bdev);
+               pr_err("Opening device '%s' on session %s failed, failed to open the block device, err: %d\n",
+                      full_path, srv_sess->sessname, ret);
+               kfree(rnbd_dev);
                goto free_path;
        }
 
@@ -797,7 +807,8 @@ srv_dev_put:
        }
        rnbd_put_srv_dev(srv_dev);
 rnbd_dev_close:
-       rnbd_dev_close(rnbd_dev);
+       blkdev_put(rnbd_dev->bdev, rnbd_dev->blk_open_flags);
+       kfree(rnbd_dev);
 free_path:
        kfree(full_path);
 reject: