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-rw-r--r--drivers/block/ataflop.c4
-rw-r--r--drivers/block/drbd/drbd_int.h4
-rw-r--r--drivers/block/drbd/drbd_nl.c65
-rw-r--r--drivers/block/floppy.c4
-rw-r--r--drivers/block/pktcdvd.c76
-rw-r--r--drivers/block/rnbd/rnbd-srv.c27
-rw-r--r--drivers/block/rnbd/rnbd-srv.h2
-rw-r--r--drivers/block/xen-blkback/blkback.c4
-rw-r--r--drivers/block/xen-blkback/common.h4
-rw-r--r--drivers/block/xen-blkback/xenbus.c40
-rw-r--r--drivers/block/zram/zram_drv.c31
-rw-r--r--drivers/block/zram/zram_drv.h2
12 files changed, 137 insertions, 126 deletions
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index cd738cab725f..50949207798d 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1760,8 +1760,10 @@ static int fd_locked_ioctl(struct block_device *bdev, blk_mode_t mode,
/* invalidate the buffer track to force a reread */
BufferDrive = -1;
set_bit(drive, &fake_change);
- if (disk_check_media_change(disk))
+ if (disk_check_media_change(disk)) {
+ bdev_mark_dead(disk->part0, true);
floppy_revalidate(disk);
+ }
return 0;
default:
return -EINVAL;
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index a30a5ed811be..c21e3732759e 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -524,7 +524,9 @@ struct drbd_md {
struct drbd_backing_dev {
struct block_device *backing_bdev;
+ struct bdev_handle *backing_bdev_handle;
struct block_device *md_bdev;
+ struct bdev_handle *md_bdev_handle;
struct drbd_md md;
struct disk_conf *disk_conf; /* RCU, for updates: resource->conf_update */
sector_t known_size; /* last known size of that backing device */
@@ -553,7 +555,7 @@ struct fifo_buffer {
unsigned int head_index;
unsigned int size;
int total; /* sum of all values */
- int values[];
+ int values[] __counted_by(size);
};
extern struct fifo_buffer *fifo_alloc(unsigned int fifo_size);
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index d3538bd83fb3..43747a1aae43 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -82,7 +82,7 @@ static atomic_t notify_genl_seq = ATOMIC_INIT(2); /* two. */
DEFINE_MUTEX(notification_mutex);
-/* used blkdev_get_by_path, to claim our meta data device(s) */
+/* used bdev_open_by_path, to claim our meta data device(s) */
static char *drbd_m_holder = "Hands off! this is DRBD's meta data device.";
static void drbd_adm_send_reply(struct sk_buff *skb, struct genl_info *info)
@@ -1635,43 +1635,45 @@ success:
return 0;
}
-static struct block_device *open_backing_dev(struct drbd_device *device,
+static struct bdev_handle *open_backing_dev(struct drbd_device *device,
const char *bdev_path, void *claim_ptr, bool do_bd_link)
{
- struct block_device *bdev;
+ struct bdev_handle *handle;
int err = 0;
- bdev = blkdev_get_by_path(bdev_path, BLK_OPEN_READ | BLK_OPEN_WRITE,
- claim_ptr, NULL);
- if (IS_ERR(bdev)) {
+ handle = bdev_open_by_path(bdev_path, BLK_OPEN_READ | BLK_OPEN_WRITE,
+ claim_ptr, NULL);
+ if (IS_ERR(handle)) {
drbd_err(device, "open(\"%s\") failed with %ld\n",
- bdev_path, PTR_ERR(bdev));
- return bdev;
+ bdev_path, PTR_ERR(handle));
+ return handle;
}
if (!do_bd_link)
- return bdev;
+ return handle;
- err = bd_link_disk_holder(bdev, device->vdisk);
+ err = bd_link_disk_holder(handle->bdev, device->vdisk);
if (err) {
- blkdev_put(bdev, claim_ptr);
+ bdev_release(handle);
drbd_err(device, "bd_link_disk_holder(\"%s\", ...) failed with %d\n",
bdev_path, err);
- bdev = ERR_PTR(err);
+ handle = ERR_PTR(err);
}
- return bdev;
+ return handle;
}
static int open_backing_devices(struct drbd_device *device,
struct disk_conf *new_disk_conf,
struct drbd_backing_dev *nbc)
{
- struct block_device *bdev;
+ struct bdev_handle *handle;
- bdev = open_backing_dev(device, new_disk_conf->backing_dev, device, true);
- if (IS_ERR(bdev))
+ handle = open_backing_dev(device, new_disk_conf->backing_dev, device,
+ true);
+ if (IS_ERR(handle))
return ERR_OPEN_DISK;
- nbc->backing_bdev = bdev;
+ nbc->backing_bdev = handle->bdev;
+ nbc->backing_bdev_handle = handle;
/*
* meta_dev_idx >= 0: external fixed size, possibly multiple
@@ -1681,7 +1683,7 @@ static int open_backing_devices(struct drbd_device *device,
* should check it for you already; but if you don't, or
* someone fooled it, we need to double check here)
*/
- bdev = open_backing_dev(device, new_disk_conf->meta_dev,
+ handle = open_backing_dev(device, new_disk_conf->meta_dev,
/* claim ptr: device, if claimed exclusively; shared drbd_m_holder,
* if potentially shared with other drbd minors */
(new_disk_conf->meta_dev_idx < 0) ? (void*)device : (void*)drbd_m_holder,
@@ -1689,20 +1691,21 @@ static int open_backing_devices(struct drbd_device *device,
* as would happen with internal metadata. */
(new_disk_conf->meta_dev_idx != DRBD_MD_INDEX_FLEX_INT &&
new_disk_conf->meta_dev_idx != DRBD_MD_INDEX_INTERNAL));
- if (IS_ERR(bdev))
+ if (IS_ERR(handle))
return ERR_OPEN_MD_DISK;
- nbc->md_bdev = bdev;
+ nbc->md_bdev = handle->bdev;
+ nbc->md_bdev_handle = handle;
return NO_ERROR;
}
-static void close_backing_dev(struct drbd_device *device, struct block_device *bdev,
- void *claim_ptr, bool do_bd_unlink)
+static void close_backing_dev(struct drbd_device *device,
+ struct bdev_handle *handle, bool do_bd_unlink)
{
- if (!bdev)
+ if (!handle)
return;
if (do_bd_unlink)
- bd_unlink_disk_holder(bdev, device->vdisk);
- blkdev_put(bdev, claim_ptr);
+ bd_unlink_disk_holder(handle->bdev, device->vdisk);
+ bdev_release(handle);
}
void drbd_backing_dev_free(struct drbd_device *device, struct drbd_backing_dev *ldev)
@@ -1710,11 +1713,9 @@ void drbd_backing_dev_free(struct drbd_device *device, struct drbd_backing_dev *
if (ldev == NULL)
return;
- close_backing_dev(device, ldev->md_bdev,
- ldev->md.meta_dev_idx < 0 ?
- (void *)device : (void *)drbd_m_holder,
+ close_backing_dev(device, ldev->md_bdev_handle,
ldev->md_bdev != ldev->backing_bdev);
- close_backing_dev(device, ldev->backing_bdev, device, true);
+ close_backing_dev(device, ldev->backing_bdev_handle, true);
kfree(ldev->disk_conf);
kfree(ldev);
@@ -2130,11 +2131,9 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
fail:
conn_reconfig_done(connection);
if (nbc) {
- close_backing_dev(device, nbc->md_bdev,
- nbc->disk_conf->meta_dev_idx < 0 ?
- (void *)device : (void *)drbd_m_holder,
+ close_backing_dev(device, nbc->md_bdev_handle,
nbc->md_bdev != nbc->backing_bdev);
- close_backing_dev(device, nbc->backing_bdev, device, true);
+ close_backing_dev(device, nbc->backing_bdev_handle, true);
kfree(nbc);
}
kfree(new_disk_conf);
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index ea4eb88a2e45..11114a5d9e5c 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3215,8 +3215,10 @@ static int invalidate_drive(struct gendisk *disk)
/* invalidate the buffer track to force a reread */
set_bit((long)disk->private_data, &fake_change);
process_fd_request();
- if (disk_check_media_change(disk))
+ if (disk_check_media_change(disk)) {
+ bdev_mark_dead(disk->part0, true);
floppy_revalidate(disk);
+ }
return 0;
}
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index a1428538bda5..d56d972aadb3 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -340,8 +340,8 @@ static ssize_t device_map_show(const struct class *c, const struct class_attribu
n += sysfs_emit_at(data, n, "%s %u:%u %u:%u\n",
pd->disk->disk_name,
MAJOR(pd->pkt_dev), MINOR(pd->pkt_dev),
- MAJOR(pd->bdev->bd_dev),
- MINOR(pd->bdev->bd_dev));
+ MAJOR(pd->bdev_handle->bdev->bd_dev),
+ MINOR(pd->bdev_handle->bdev->bd_dev));
}
mutex_unlock(&ctl_mutex);
return n;
@@ -437,7 +437,8 @@ static int pkt_seq_show(struct seq_file *m, void *p)
char *msg;
int states[PACKET_NUM_STATES];
- seq_printf(m, "Writer %s mapped to %pg:\n", pd->disk->disk_name, pd->bdev);
+ seq_printf(m, "Writer %s mapped to %pg:\n", pd->disk->disk_name,
+ pd->bdev_handle->bdev);
seq_printf(m, "\nSettings:\n");
seq_printf(m, "\tpacket size:\t\t%dkB\n", pd->settings.size / 2);
@@ -714,7 +715,7 @@ static void pkt_rbtree_insert(struct pktcdvd_device *pd, struct pkt_rb_node *nod
*/
static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command *cgc)
{
- struct request_queue *q = bdev_get_queue(pd->bdev);
+ struct request_queue *q = bdev_get_queue(pd->bdev_handle->bdev);
struct scsi_cmnd *scmd;
struct request *rq;
int ret = 0;
@@ -1047,7 +1048,8 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
continue;
bio = pkt->r_bios[f];
- bio_init(bio, pd->bdev, bio->bi_inline_vecs, 1, REQ_OP_READ);
+ bio_init(bio, pd->bdev_handle->bdev, bio->bi_inline_vecs, 1,
+ REQ_OP_READ);
bio->bi_iter.bi_sector = pkt->sector + f * (CD_FRAMESIZE >> 9);
bio->bi_end_io = pkt_end_io_read;
bio->bi_private = pkt;
@@ -1262,8 +1264,8 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
struct device *ddev = disk_to_dev(pd->disk);
int f;
- bio_init(pkt->w_bio, pd->bdev, pkt->w_bio->bi_inline_vecs, pkt->frames,
- REQ_OP_WRITE);
+ bio_init(pkt->w_bio, pd->bdev_handle->bdev, pkt->w_bio->bi_inline_vecs,
+ pkt->frames, REQ_OP_WRITE);
pkt->w_bio->bi_iter.bi_sector = pkt->sector;
pkt->w_bio->bi_end_io = pkt_end_io_packet_write;
pkt->w_bio->bi_private = pkt;
@@ -2160,18 +2162,20 @@ static int pkt_open_dev(struct pktcdvd_device *pd, bool write)
int ret;
long lba;
struct request_queue *q;
- struct block_device *bdev;
+ struct bdev_handle *bdev_handle;
/*
* We need to re-open the cdrom device without O_NONBLOCK to be able
* to read/write from/to it. It is already opened in O_NONBLOCK mode
* so open should not fail.
*/
- bdev = blkdev_get_by_dev(pd->bdev->bd_dev, BLK_OPEN_READ, pd, NULL);
- if (IS_ERR(bdev)) {
- ret = PTR_ERR(bdev);
+ bdev_handle = bdev_open_by_dev(pd->bdev_handle->bdev->bd_dev,
+ BLK_OPEN_READ, pd, NULL);
+ if (IS_ERR(bdev_handle)) {
+ ret = PTR_ERR(bdev_handle);
goto out;
}
+ pd->open_bdev_handle = bdev_handle;
ret = pkt_get_last_written(pd, &lba);
if (ret) {
@@ -2180,9 +2184,9 @@ static int pkt_open_dev(struct pktcdvd_device *pd, bool write)
}
set_capacity(pd->disk, lba << 2);
- set_capacity_and_notify(pd->bdev->bd_disk, lba << 2);
+ set_capacity_and_notify(pd->bdev_handle->bdev->bd_disk, lba << 2);
- q = bdev_get_queue(pd->bdev);
+ q = bdev_get_queue(pd->bdev_handle->bdev);
if (write) {
ret = pkt_open_write(pd);
if (ret)
@@ -2214,7 +2218,7 @@ static int pkt_open_dev(struct pktcdvd_device *pd, bool write)
return 0;
out_putdev:
- blkdev_put(bdev, pd);
+ bdev_release(bdev_handle);
out:
return ret;
}
@@ -2233,7 +2237,8 @@ static void pkt_release_dev(struct pktcdvd_device *pd, int flush)
pkt_lock_door(pd, 0);
pkt_set_speed(pd, MAX_SPEED, MAX_SPEED);
- blkdev_put(pd->bdev, pd);
+ bdev_release(pd->open_bdev_handle);
+ pd->open_bdev_handle = NULL;
pkt_shrink_pktlist(pd);
}
@@ -2321,8 +2326,8 @@ static void pkt_end_io_read_cloned(struct bio *bio)
static void pkt_make_request_read(struct pktcdvd_device *pd, struct bio *bio)
{
- struct bio *cloned_bio =
- bio_alloc_clone(pd->bdev, bio, GFP_NOIO, &pkt_bio_set);
+ struct bio *cloned_bio = bio_alloc_clone(pd->bdev_handle->bdev, bio,
+ GFP_NOIO, &pkt_bio_set);
struct packet_stacked_data *psd = mempool_alloc(&psd_pool, GFP_NOIO);
psd->pd = pd;
@@ -2492,7 +2497,7 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
{
struct device *ddev = disk_to_dev(pd->disk);
int i;
- struct block_device *bdev;
+ struct bdev_handle *bdev_handle;
struct scsi_device *sdev;
if (pd->pkt_dev == dev) {
@@ -2503,8 +2508,9 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
struct pktcdvd_device *pd2 = pkt_devs[i];
if (!pd2)
continue;
- if (pd2->bdev->bd_dev == dev) {
- dev_err(ddev, "%pg already setup\n", pd2->bdev);
+ if (pd2->bdev_handle->bdev->bd_dev == dev) {
+ dev_err(ddev, "%pg already setup\n",
+ pd2->bdev_handle->bdev);
return -EBUSY;
}
if (pd2->pkt_dev == dev) {
@@ -2513,13 +2519,13 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
}
}
- bdev = blkdev_get_by_dev(dev, BLK_OPEN_READ | BLK_OPEN_NDELAY, NULL,
- NULL);
- if (IS_ERR(bdev))
- return PTR_ERR(bdev);
- sdev = scsi_device_from_queue(bdev->bd_disk->queue);
+ bdev_handle = bdev_open_by_dev(dev, BLK_OPEN_READ | BLK_OPEN_NDELAY,
+ NULL, NULL);
+ if (IS_ERR(bdev_handle))
+ return PTR_ERR(bdev_handle);
+ sdev = scsi_device_from_queue(bdev_handle->bdev->bd_disk->queue);
if (!sdev) {
- blkdev_put(bdev, NULL);
+ bdev_release(bdev_handle);
return -EINVAL;
}
put_device(&sdev->sdev_gendev);
@@ -2527,8 +2533,8 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
/* This is safe, since we have a reference from open(). */
__module_get(THIS_MODULE);
- pd->bdev = bdev;
- set_blocksize(bdev, CD_FRAMESIZE);
+ pd->bdev_handle = bdev_handle;
+ set_blocksize(bdev_handle->bdev, CD_FRAMESIZE);
pkt_init_queue(pd);
@@ -2540,11 +2546,11 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
}
proc_create_single_data(pd->disk->disk_name, 0, pkt_proc, pkt_seq_show, pd);
- dev_notice(ddev, "writer mapped to %pg\n", bdev);
+ dev_notice(ddev, "writer mapped to %pg\n", bdev_handle->bdev);
return 0;
out_mem:
- blkdev_put(bdev, NULL);
+ bdev_release(bdev_handle);
/* This is safe: open() is still holding a reference. */
module_put(THIS_MODULE);
return -ENOMEM;
@@ -2599,9 +2605,9 @@ static unsigned int pkt_check_events(struct gendisk *disk,
if (!pd)
return 0;
- if (!pd->bdev)
+ if (!pd->bdev_handle)
return 0;
- attached_disk = pd->bdev->bd_disk;
+ attached_disk = pd->bdev_handle->bdev->bd_disk;
if (!attached_disk || !attached_disk->fops->check_events)
return 0;
return attached_disk->fops->check_events(attached_disk, clearing);
@@ -2686,7 +2692,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
goto out_mem2;
/* inherit events of the host device */
- disk->events = pd->bdev->bd_disk->events;
+ disk->events = pd->bdev_handle->bdev->bd_disk->events;
ret = add_disk(disk);
if (ret)
@@ -2751,7 +2757,7 @@ static int pkt_remove_dev(dev_t pkt_dev)
pkt_debugfs_dev_remove(pd);
pkt_sysfs_dev_remove(pd);
- blkdev_put(pd->bdev, NULL);
+ bdev_release(pd->bdev_handle);
remove_proc_entry(pd->disk->disk_name, pkt_proc);
dev_notice(ddev, "writer unmapped\n");
@@ -2778,7 +2784,7 @@ static void pkt_get_status(struct pkt_ctrl_command *ctrl_cmd)
pd = pkt_find_dev_from_minor(ctrl_cmd->dev_index);
if (pd) {
- ctrl_cmd->dev = new_encode_dev(pd->bdev->bd_dev);
+ ctrl_cmd->dev = new_encode_dev(pd->bdev_handle->bdev->bd_dev);
ctrl_cmd->pkt_dev = new_encode_dev(pd->pkt_dev);
} else {
ctrl_cmd->dev = 0;
diff --git a/drivers/block/rnbd/rnbd-srv.c b/drivers/block/rnbd/rnbd-srv.c
index c186df0ec641..65de51f3dfd9 100644
--- a/drivers/block/rnbd/rnbd-srv.c
+++ b/drivers/block/rnbd/rnbd-srv.c
@@ -145,7 +145,7 @@ static int process_rdma(struct rnbd_srv_session *srv_sess,
priv->sess_dev = sess_dev;
priv->id = id;
- bio = bio_alloc(sess_dev->bdev, 1,
+ bio = bio_alloc(sess_dev->bdev_handle->bdev, 1,
rnbd_to_bio_flags(le32_to_cpu(msg->rw)), GFP_KERNEL);
if (bio_add_page(bio, virt_to_page(data), datalen,
offset_in_page(data)) != datalen) {
@@ -219,7 +219,7 @@ 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 */
- blkdev_put(sess_dev->bdev, NULL);
+ bdev_release(sess_dev->bdev_handle);
mutex_lock(&sess_dev->dev->lock);
list_del(&sess_dev->dev_list);
if (!sess_dev->readonly)
@@ -534,7 +534,7 @@ rnbd_srv_get_or_create_srv_dev(struct block_device *bdev,
static void rnbd_srv_fill_msg_open_rsp(struct rnbd_msg_open_rsp *rsp,
struct rnbd_srv_sess_dev *sess_dev)
{
- struct block_device *bdev = sess_dev->bdev;
+ struct block_device *bdev = sess_dev->bdev_handle->bdev;
rsp->hdr.type = cpu_to_le16(RNBD_MSG_OPEN_RSP);
rsp->device_id = cpu_to_le32(sess_dev->device_id);
@@ -559,7 +559,7 @@ static void rnbd_srv_fill_msg_open_rsp(struct rnbd_msg_open_rsp *rsp,
static struct rnbd_srv_sess_dev *
rnbd_srv_create_set_sess_dev(struct rnbd_srv_session *srv_sess,
const struct rnbd_msg_open *open_msg,
- struct block_device *bdev, bool readonly,
+ struct bdev_handle *handle, bool readonly,
struct rnbd_srv_dev *srv_dev)
{
struct rnbd_srv_sess_dev *sdev = rnbd_sess_dev_alloc(srv_sess);
@@ -571,7 +571,7 @@ rnbd_srv_create_set_sess_dev(struct rnbd_srv_session *srv_sess,
strscpy(sdev->pathname, open_msg->dev_name, sizeof(sdev->pathname));
- sdev->bdev = bdev;
+ sdev->bdev_handle = handle;
sdev->sess = srv_sess;
sdev->dev = srv_dev;
sdev->readonly = readonly;
@@ -676,7 +676,7 @@ static int process_msg_open(struct rnbd_srv_session *srv_sess,
struct rnbd_srv_dev *srv_dev;
struct rnbd_srv_sess_dev *srv_sess_dev;
const struct rnbd_msg_open *open_msg = msg;
- struct block_device *bdev;
+ struct bdev_handle *bdev_handle;
blk_mode_t open_flags = BLK_OPEN_READ;
char *full_path;
struct rnbd_msg_open_rsp *rsp = data;
@@ -714,15 +714,15 @@ static int process_msg_open(struct rnbd_srv_session *srv_sess,
goto reject;
}
- bdev = blkdev_get_by_path(full_path, open_flags, NULL, NULL);
- if (IS_ERR(bdev)) {
- ret = PTR_ERR(bdev);
+ bdev_handle = bdev_open_by_path(full_path, open_flags, NULL, NULL);
+ if (IS_ERR(bdev_handle)) {
+ ret = PTR_ERR(bdev_handle);
pr_err("Opening device '%s' on session %s failed, failed to open the block device, err: %d\n",
full_path, srv_sess->sessname, ret);
goto free_path;
}
- srv_dev = rnbd_srv_get_or_create_srv_dev(bdev, srv_sess,
+ srv_dev = rnbd_srv_get_or_create_srv_dev(bdev_handle->bdev, srv_sess,
open_msg->access_mode);
if (IS_ERR(srv_dev)) {
pr_err("Opening device '%s' on session %s failed, creating srv_dev failed, err: %ld\n",
@@ -731,7 +731,8 @@ static int process_msg_open(struct rnbd_srv_session *srv_sess,
goto blkdev_put;
}
- srv_sess_dev = rnbd_srv_create_set_sess_dev(srv_sess, open_msg, bdev,
+ srv_sess_dev = rnbd_srv_create_set_sess_dev(srv_sess, open_msg,
+ bdev_handle,
open_msg->access_mode == RNBD_ACCESS_RO,
srv_dev);
if (IS_ERR(srv_sess_dev)) {
@@ -747,7 +748,7 @@ static int process_msg_open(struct rnbd_srv_session *srv_sess,
*/
mutex_lock(&srv_dev->lock);
if (!srv_dev->dev_kobj.state_in_sysfs) {
- ret = rnbd_srv_create_dev_sysfs(srv_dev, bdev);
+ ret = rnbd_srv_create_dev_sysfs(srv_dev, bdev_handle->bdev);
if (ret) {
mutex_unlock(&srv_dev->lock);
rnbd_srv_err(srv_sess_dev,
@@ -790,7 +791,7 @@ srv_dev_put:
}
rnbd_put_srv_dev(srv_dev);
blkdev_put:
- blkdev_put(bdev, NULL);
+ bdev_release(bdev_handle);
free_path:
kfree(full_path);
reject:
diff --git a/drivers/block/rnbd/rnbd-srv.h b/drivers/block/rnbd/rnbd-srv.h
index 1027656dedb0..343cc682b617 100644
--- a/drivers/block/rnbd/rnbd-srv.h
+++ b/drivers/block/rnbd/rnbd-srv.h
@@ -46,7 +46,7 @@ struct rnbd_srv_dev {
struct rnbd_srv_sess_dev {
/* Entry inside rnbd_srv_dev struct */
struct list_head dev_list;
- struct block_device *bdev;
+ struct bdev_handle *bdev_handle;
struct rnbd_srv_session *sess;
struct rnbd_srv_dev *dev;
struct kobject kobj;
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index c362f4ad80ab..4defd7f387c7 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -465,7 +465,7 @@ static int xen_vbd_translate(struct phys_req *req, struct xen_blkif *blkif,
}
req->dev = vbd->pdevice;
- req->bdev = vbd->bdev;
+ req->bdev = vbd->bdev_handle->bdev;
rc = 0;
out:
@@ -969,7 +969,7 @@ static int dispatch_discard_io(struct xen_blkif_ring *ring,
int err = 0;
int status = BLKIF_RSP_OKAY;
struct xen_blkif *blkif = ring->blkif;
- struct block_device *bdev = blkif->vbd.bdev;
+ struct block_device *bdev = blkif->vbd.bdev_handle->bdev;
struct phys_req preq;
xen_blkif_get(blkif);
diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h
index 40f67bfc052d..5ff50e76cee5 100644
--- a/drivers/block/xen-blkback/common.h
+++ b/drivers/block/xen-blkback/common.h
@@ -221,7 +221,7 @@ struct xen_vbd {
unsigned char type;
/* phys device that this vbd maps to. */
u32 pdevice;
- struct block_device *bdev;
+ struct bdev_handle *bdev_handle;
/* Cached size parameter. */
sector_t size;
unsigned int flush_support:1;
@@ -360,7 +360,7 @@ struct pending_req {
};
-#define vbd_sz(_v) bdev_nr_sectors((_v)->bdev)
+#define vbd_sz(_v) bdev_nr_sectors((_v)->bdev_handle->bdev)
#define xen_blkif_get(_b) (atomic_inc(&(_b)->refcnt))
#define xen_blkif_put(_b) \
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index bb66178c432b..e34219ea2b05 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -81,7 +81,7 @@ static void xen_update_blkif_status(struct xen_blkif *blkif)
int i;
/* Not ready to connect? */
- if (!blkif->rings || !blkif->rings[0].irq || !blkif->vbd.bdev)
+ if (!blkif->rings || !blkif->rings[0].irq || !blkif->vbd.bdev_handle)
return;
/* Already connected? */
@@ -99,12 +99,13 @@ static void xen_update_blkif_status(struct xen_blkif *blkif)
return;
}
- err = sync_blockdev(blkif->vbd.bdev);
+ err = sync_blockdev(blkif->vbd.bdev_handle->bdev);
if (err) {
xenbus_dev_error(blkif->be->dev, err, "block flush");
return;
}
- invalidate_inode_pages2(blkif->vbd.bdev->bd_inode->i_mapping);
+ invalidate_inode_pages2(
+ blkif->vbd.bdev_handle->bdev->bd_inode->i_mapping);
for (i = 0; i < blkif->nr_rings; i++) {
ring = &blkif->rings[i];
@@ -472,9 +473,9 @@ static void xenvbd_sysfs_delif(struct xenbus_device *dev)
static void xen_vbd_free(struct xen_vbd *vbd)
{
- if (vbd->bdev)
- blkdev_put(vbd->bdev, NULL);
- vbd->bdev = NULL;
+ if (vbd->bdev_handle)
+ bdev_release(vbd->bdev_handle);
+ vbd->bdev_handle = NULL;
}
static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,
@@ -482,7 +483,7 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,
int cdrom)
{
struct xen_vbd *vbd;
- struct block_device *bdev;
+ struct bdev_handle *bdev_handle;
vbd = &blkif->vbd;
vbd->handle = handle;
@@ -491,17 +492,17 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,
vbd->pdevice = MKDEV(major, minor);
- bdev = blkdev_get_by_dev(vbd->pdevice, vbd->readonly ?
+ bdev_handle = bdev_open_by_dev(vbd->pdevice, vbd->readonly ?
BLK_OPEN_READ : BLK_OPEN_WRITE, NULL, NULL);
- if (IS_ERR(bdev)) {
+ if (IS_ERR(bdev_handle)) {
pr_warn("xen_vbd_create: device %08x could not be opened\n",
vbd->pdevice);
return -ENOENT;
}
- vbd->bdev = bdev;
- if (vbd->bdev->bd_disk == NULL) {
+ vbd->bdev_handle = bdev_handle;
+ if (vbd->bdev_handle->bdev->bd_disk == NULL) {
pr_warn("xen_vbd_create: device %08x doesn't exist\n",
vbd->pdevice);
xen_vbd_free(vbd);
@@ -509,14 +510,14 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,
}
vbd->size = vbd_sz(vbd);
- if (cdrom || disk_to_cdi(vbd->bdev->bd_disk))
+ if (cdrom || disk_to_cdi(vbd->bdev_handle->bdev->bd_disk))
vbd->type |= VDISK_CDROM;
- if (vbd->bdev->bd_disk->flags & GENHD_FL_REMOVABLE)
+ if (vbd->bdev_handle->bdev->bd_disk->flags & GENHD_FL_REMOVABLE)
vbd->type |= VDISK_REMOVABLE;
- if (bdev_write_cache(bdev))
+ if (bdev_write_cache(bdev_handle->bdev))
vbd->flush_support = true;
- if (bdev_max_secure_erase_sectors(bdev))
+ if (bdev_max_secure_erase_sectors(bdev_handle->bdev))
vbd->discard_secure = true;
pr_debug("Successful creation of handle=%04x (dom=%u)\n",
@@ -569,7 +570,7 @@ static void xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info
struct xen_blkif *blkif = be->blkif;
int err;
int state = 0;
- struct block_device *bdev = be->blkif->vbd.bdev;
+ struct block_device *bdev = be->blkif->vbd.bdev_handle->bdev;
if (!xenbus_read_unsigned(dev->nodename, "discard-enable", 1))
return;
@@ -930,15 +931,16 @@ again:
goto abort;
}
err = xenbus_printf(xbt, dev->nodename, "sector-size", "%lu",
- (unsigned long)
- bdev_logical_block_size(be->blkif->vbd.bdev));
+ (unsigned long)bdev_logical_block_size(
+ be->blkif->vbd.bdev_handle->bdev));
if (err) {
xenbus_dev_fatal(dev, err, "writing %s/sector-size",
dev->nodename);
goto abort;
}
err = xenbus_printf(xbt, dev->nodename, "physical-sector-size", "%u",
- bdev_physical_block_size(be->blkif->vbd.bdev));
+ bdev_physical_block_size(
+ be->blkif->vbd.bdev_handle->bdev));
if (err)
xenbus_dev_error(dev, err, "writing %s/physical-sector-size",
dev->nodename);
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 06673c6ca255..d77d3664ca08 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -414,17 +414,14 @@ static ssize_t writeback_limit_show(struct device *dev,
static void reset_bdev(struct zram *zram)
{
- struct block_device *bdev;
-
if (!zram->backing_dev)
return;
- bdev = zram->bdev;
- blkdev_put(bdev, zram);
+ bdev_release(zram->bdev_handle);
/* hope filp_close flush all of IO */
filp_close(zram->backing_dev, NULL);
zram->backing_dev = NULL;
- zram->bdev = NULL;
+ zram->bdev_handle = NULL;
zram->disk->fops = &zram_devops;
kvfree(zram->bitmap);
zram->bitmap = NULL;
@@ -470,7 +467,7 @@ static ssize_t backing_dev_store(struct device *dev,
struct address_space *mapping;
unsigned int bitmap_sz;
unsigned long nr_pages, *bitmap = NULL;
- struct block_device *bdev = NULL;
+ struct bdev_handle *bdev_handle = NULL;
int err;
struct zram *zram = dev_to_zram(dev);
@@ -507,11 +504,11 @@ static ssize_t backing_dev_store(struct device *dev,
goto out;
}
- bdev = blkdev_get_by_dev(inode->i_rdev, BLK_OPEN_READ | BLK_OPEN_WRITE,
- zram, NULL);
- if (IS_ERR(bdev)) {
- err = PTR_ERR(bdev);
- bdev = NULL;
+ bdev_handle = bdev_open_by_dev(inode->i_rdev,
+ BLK_OPEN_READ | BLK_OPEN_WRITE, zram, NULL);
+ if (IS_ERR(bdev_handle)) {
+ err = PTR_ERR(bdev_handle);
+ bdev_handle = NULL;
goto out;
}
@@ -525,7 +522,7 @@ static ssize_t backing_dev_store(struct device *dev,
reset_bdev(zram);
- zram->bdev = bdev;
+ zram->bdev_handle = bdev_handle;
zram->backing_dev = backing_dev;
zram->bitmap = bitmap;
zram->nr_pages = nr_pages;
@@ -538,8 +535,8 @@ static ssize_t backing_dev_store(struct device *dev,
out:
kvfree(bitmap);
- if (bdev)
- blkdev_put(bdev, zram);
+ if (bdev_handle)
+ bdev_release(bdev_handle);
if (backing_dev)
filp_close(backing_dev, NULL);
@@ -581,7 +578,7 @@ static void read_from_bdev_async(struct zram *zram, struct page *page,
{
struct bio *bio;
- bio = bio_alloc(zram->bdev, 1, parent->bi_opf, GFP_NOIO);
+ bio = bio_alloc(zram->bdev_handle->bdev, 1, parent->bi_opf, GFP_NOIO);
bio->bi_iter.bi_sector = entry * (PAGE_SIZE >> 9);
__bio_add_page(bio, page, PAGE_SIZE, 0);
bio_chain(bio, parent);
@@ -697,7 +694,7 @@ static ssize_t writeback_store(struct device *dev,
continue;
}
- bio_init(&bio, zram->bdev, &bio_vec, 1,
+ bio_init(&bio, zram->bdev_handle->bdev, &bio_vec, 1,
REQ_OP_WRITE | REQ_SYNC);
bio.bi_iter.bi_sector = blk_idx * (PAGE_SIZE >> 9);
__bio_add_page(&bio, page, PAGE_SIZE, 0);
@@ -779,7 +776,7 @@ static void zram_sync_read(struct work_struct *work)
struct bio_vec bv;
struct bio bio;
- bio_init(&bio, zw->zram->bdev, &bv, 1, REQ_OP_READ);
+ bio_init(&bio, zw->zram->bdev_handle->bdev, &bv, 1, REQ_OP_READ);
bio.bi_iter.bi_sector = zw->entry * (PAGE_SIZE >> 9);
__bio_add_page(&bio, zw->page, PAGE_SIZE, 0);
zw->error = submit_bio_wait(&bio);
diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h
index ca7a15bd4845..d090753f97be 100644
--- a/drivers/block/zram/zram_drv.h
+++ b/drivers/block/zram/zram_drv.h
@@ -132,7 +132,7 @@ struct zram {
spinlock_t wb_limit_lock;
bool wb_limit_enable;
u64 bd_wb_limit;
- struct block_device *bdev;
+ struct bdev_handle *bdev_handle;
unsigned long *bitmap;
unsigned long nr_pages;
#endif
generated by cgit (git 2.34.1) at 2025-05-28 21:47:26 +0000