[PATCH 3/4] rnbd-srv: remove rnbd_dev_{open,close}
From: Christoph Hellwig <hch@lst.de>
Date: 2022-08-22 06:17:59
Subsystem:
block layer, rnbd block drivers, the rest · Maintainers:
Jens Axboe, Md. Haris Iqbal, Jack Wang, Linus Torvalds
These can be trivially open coded in the callers. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/block/rnbd/Makefile | 1 - drivers/block/rnbd/rnbd-srv-dev.c | 43 ------------------------------- drivers/block/rnbd/rnbd-srv-dev.h | 12 --------- drivers/block/rnbd/rnbd-srv.c | 25 +++++++++++++----- 4 files changed, 18 insertions(+), 63 deletions(-) delete mode 100644 drivers/block/rnbd/rnbd-srv-dev.c
diff --git a/drivers/block/rnbd/Makefile b/drivers/block/rnbd/Makefile
index 5fc05e6679503..40b31630822ce 100644
--- 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
index c63017f6e4214..0000000000000
--- a/drivers/block/rnbd/rnbd-srv-dev.c
+++ /dev/null@@ -1,43 +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->blk_open_flags = flags; - 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 328dc915832cd..abaf77d68e5b9 100644
--- 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 8303de61e8094..be238b625c2c0 100644
--- 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)
@@ -717,11 +719,19 @@ 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; }
@@ -793,7 +803,8 @@ static int process_msg_open(struct rnbd_srv_session *srv_sess, } 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:
--
2.30.2