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vfs-6.9.super

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Merge tag 'vfs-6.9.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull block handle updates from Christian Brauner:
 "Last cycle we changed opening of block devices, and opening a block
  device would return a bdev_handle. This allowed us to implement
  support for restricting and forbidding writes to mounted block
  devices. It was accompanied by converting and adding helpers to
  operate on bdev_handles instead of plain block devices.

  That was already a good step forward but ultimately it isn't necessary
  to have special purpose helpers for opening block devices internally
  that return a bdev_handle.

  Fundamentally, opening a block device internally should just be
  equivalent to opening files. So now all internal opens of block
  devices return files just as a userspace open would. Instead of
  introducing a separate indirection into bdev_open_by_*() via struct
  bdev_handle bdev_file_open_by_*() is made to just return a struct
  file. Opening and closing a block device just becomes equivalent to
  opening and closing a file.

  This all works well because internally we already have a pseudo fs for
  block devices and so opening block devices is simple. There's a few
  places where we needed to be careful such as during boot when the
  kernel is supposed to mount the rootfs directly without init doing it.
  Here we need to take care to ensure that we flush out any asynchronous
  file close. That's what we already do for opening, unpacking, and
  closing the initramfs. So nothing new here.

  The equivalence of opening and closing block devices to regular files
  is a win in and of itself. But it also has various other advantages.
  We can remove struct bdev_handle completely. Various low-level helpers
  are now private to the block layer. Other helpers were simply
  removable completely.

  A follow-up series that is already reviewed build on this and makes it
  possible to remove bdev->bd_inode and allows various clean ups of the
  buffer head code as well. All places where we stashed a bdev_handle
  now just stash a file and use simple accessors to get to the actual
  block device which was already the case for bdev_handle"

* tag 'vfs-6.9.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (35 commits)
  block: remove bdev_handle completely
  block: don't rely on BLK_OPEN_RESTRICT_WRITES when yielding write access
  bdev: remove bdev pointer from struct bdev_handle
  bdev: make struct bdev_handle private to the block layer
  bdev: make bdev_{release, open_by_dev}() private to block layer
  bdev: remove bdev_open_by_path()
  reiserfs: port block device access to file
  ocfs2: port block device access to file
  nfs: port block device access to files
  jfs: port block device access to file
  f2fs: port block device access to files
  ext4: port block device access to file
  erofs: port device access to file
  btrfs: port device access to file
  bcachefs: port block device access to file
  target: port block device access to file
  s390: port block device access to file
  nvme: port block device access to file
  block2mtd: port device access to files
  bcache: port block device access to files
  ...
This commit is contained in:
Linus Torvalds 2024-03-11 10:52:34 -07:00
commit 910202f00a
72 changed files with 811 additions and 702 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

252
block/bdev.c
View File

@ -49,6 +49,12 @@ struct block_device *I_BDEV(struct inode *inode)
}
EXPORT_SYMBOL(I_BDEV);
struct block_device *file_bdev(struct file *bdev_file)
{
return I_BDEV(bdev_file->f_mapping->host);
}
EXPORT_SYMBOL(file_bdev);
static void bdev_write_inode(struct block_device *bdev)
{
struct inode *inode = bdev->bd_inode;
@ -368,12 +374,12 @@ static struct file_system_type bd_type = {
};
struct super_block *blockdev_superblock __ro_after_init;
struct vfsmount *blockdev_mnt __ro_after_init;
EXPORT_SYMBOL_GPL(blockdev_superblock);
void __init bdev_cache_init(void)
{
int err;
static struct vfsmount *bd_mnt __ro_after_init;
bdev_cachep = kmem_cache_create("bdev_cache", sizeof(struct bdev_inode),
0, (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|
@ -382,10 +388,10 @@ void __init bdev_cache_init(void)
err = register_filesystem(&bd_type);
if (err)
panic("Cannot register bdev pseudo-fs");
bd_mnt = kern_mount(&bd_type);
if (IS_ERR(bd_mnt))
blockdev_mnt = kern_mount(&bd_type);
if (IS_ERR(blockdev_mnt))
panic("Cannot create bdev pseudo-fs");
blockdev_superblock = bd_mnt->mnt_sb; /* For writeback */
blockdev_superblock = blockdev_mnt->mnt_sb; /* For writeback */
}
struct block_device *bdev_alloc(struct gendisk *disk, u8 partno)
@ -696,6 +702,31 @@ out_blkdev_put:
return ret;
}
int bdev_permission(dev_t dev, blk_mode_t mode, void *holder)
{
int ret;
ret = devcgroup_check_permission(DEVCG_DEV_BLOCK,
MAJOR(dev), MINOR(dev),
((mode & BLK_OPEN_READ) ? DEVCG_ACC_READ : 0) |
((mode & BLK_OPEN_WRITE) ? DEVCG_ACC_WRITE : 0));
if (ret)
return ret;
/* Blocking writes requires exclusive opener */
if (mode & BLK_OPEN_RESTRICT_WRITES && !holder)
return -EINVAL;
/*
* We're using error pointers to indicate to ->release() when we
* failed to open that block device. Also this doesn't make sense.
*/
if (WARN_ON_ONCE(IS_ERR(holder)))
return -EINVAL;
return 0;
}
static void blkdev_put_part(struct block_device *part)
{
struct block_device *whole = bdev_whole(part);
@ -775,83 +806,55 @@ static void bdev_claim_write_access(struct block_device *bdev, blk_mode_t mode)
bdev->bd_writers++;
}
static void bdev_yield_write_access(struct block_device *bdev, blk_mode_t mode)
static void bdev_yield_write_access(struct file *bdev_file)
{
struct block_device *bdev;
if (bdev_allow_write_mounted)
return;
bdev = file_bdev(bdev_file);
/* Yield exclusive or shared write access. */
if (mode & BLK_OPEN_RESTRICT_WRITES)
bdev_unblock_writes(bdev);
else if (mode & BLK_OPEN_WRITE)
bdev->bd_writers--;
if (bdev_file->f_mode & FMODE_WRITE) {
if (bdev_writes_blocked(bdev))
bdev_unblock_writes(bdev);
else
bdev->bd_writers--;
}
}
/**
* bdev_open_by_dev - open a block device by device number
* @dev: device number of block device to open
* bdev_open - open a block device
* @bdev: block device to open
* @mode: open mode (BLK_OPEN_*)
* @holder: exclusive holder identifier
* @hops: holder operations
* @bdev_file: file for the block device
*
* Open the block device described by device number @dev. If @holder is not
* %NULL, the block device is opened with exclusive access. Exclusive opens may
* nest for the same @holder.
*
* Use this interface ONLY if you really do not have anything better - i.e. when
* you are behind a truly sucky interface and all you are given is a device
* number. Everything else should use bdev_open_by_path().
* Open the block device. If @holder is not %NULL, the block device is opened
* with exclusive access. Exclusive opens may nest for the same @holder.
*
* CONTEXT:
* Might sleep.
*
* RETURNS:
* Handle with a reference to the block_device on success, ERR_PTR(-errno) on
* failure.
* zero on success, -errno on failure.
*/
struct bdev_handle *bdev_open_by_dev(dev_t dev, blk_mode_t mode, void *holder,
const struct blk_holder_ops *hops)
int bdev_open(struct block_device *bdev, blk_mode_t mode, void *holder,
const struct blk_holder_ops *hops, struct file *bdev_file)
{
struct bdev_handle *handle = kmalloc(sizeof(struct bdev_handle),
GFP_KERNEL);
struct block_device *bdev;
bool unblock_events = true;
struct gendisk *disk;
struct gendisk *disk = bdev->bd_disk;
int ret;
if (!handle)
return ERR_PTR(-ENOMEM);
ret = devcgroup_check_permission(DEVCG_DEV_BLOCK,
MAJOR(dev), MINOR(dev),
((mode & BLK_OPEN_READ) ? DEVCG_ACC_READ : 0) |
((mode & BLK_OPEN_WRITE) ? DEVCG_ACC_WRITE : 0));
if (ret)
goto free_handle;
/* Blocking writes requires exclusive opener */
if (mode & BLK_OPEN_RESTRICT_WRITES && !holder) {
ret = -EINVAL;
goto free_handle;
}
bdev = blkdev_get_no_open(dev);
if (!bdev) {
ret = -ENXIO;
goto free_handle;
}
disk = bdev->bd_disk;
if (holder) {
mode |= BLK_OPEN_EXCL;
ret = bd_prepare_to_claim(bdev, holder, hops);
if (ret)
goto put_blkdev;
return ret;
} else {
if (WARN_ON_ONCE(mode & BLK_OPEN_EXCL)) {
ret = -EIO;
goto put_blkdev;
}
if (WARN_ON_ONCE(mode & BLK_OPEN_EXCL))
return -EIO;
}
disk_block_events(disk);
@ -892,10 +895,16 @@ struct bdev_handle *bdev_open_by_dev(dev_t dev, blk_mode_t mode, void *holder,
if (unblock_events)
disk_unblock_events(disk);
handle->bdev = bdev;
handle->holder = holder;
handle->mode = mode;
return handle;
bdev_file->f_flags |= O_LARGEFILE;
bdev_file->f_mode |= FMODE_BUF_RASYNC | FMODE_CAN_ODIRECT;
if (bdev_nowait(bdev))
bdev_file->f_mode |= FMODE_NOWAIT;
bdev_file->f_mapping = bdev->bd_inode->i_mapping;
bdev_file->f_wb_err = filemap_sample_wb_err(bdev_file->f_mapping);
bdev_file->private_data = holder;
return 0;
put_module:
module_put(disk->fops->owner);
abort_claiming:
@ -903,36 +912,80 @@ abort_claiming:
bd_abort_claiming(bdev, holder);
mutex_unlock(&disk->open_mutex);
disk_unblock_events(disk);
put_blkdev:
blkdev_put_no_open(bdev);
free_handle:
kfree(handle);
return ERR_PTR(ret);
return ret;
}
EXPORT_SYMBOL(bdev_open_by_dev);
/**
* bdev_open_by_path - open a block device by name
* @path: path to the block device to open
* @mode: open mode (BLK_OPEN_*)
* @holder: exclusive holder identifier
* @hops: holder operations
/*
* If BLK_OPEN_WRITE_IOCTL is set then this is a historical quirk
* associated with the floppy driver where it has allowed ioctls if the
* file was opened for writing, but does not allow reads or writes.
* Make sure that this quirk is reflected in @f_flags.
*
* Open the block device described by the device file at @path. If @holder is
* not %NULL, the block device is opened with exclusive access. Exclusive opens
* may nest for the same @holder.
*
* CONTEXT:
* Might sleep.
*
* RETURNS:
* Handle with a reference to the block_device on success, ERR_PTR(-errno) on
* failure.
* It can also happen if a block device is opened as O_RDWR | O_WRONLY.
*/
struct bdev_handle *bdev_open_by_path(const char *path, blk_mode_t mode,
void *holder, const struct blk_holder_ops *hops)
static unsigned blk_to_file_flags(blk_mode_t mode)
{
struct bdev_handle *handle;
unsigned int flags = 0;
if ((mode & (BLK_OPEN_READ | BLK_OPEN_WRITE)) ==
(BLK_OPEN_READ | BLK_OPEN_WRITE))
flags |= O_RDWR;
else if (mode & BLK_OPEN_WRITE_IOCTL)
flags |= O_RDWR | O_WRONLY;
else if (mode & BLK_OPEN_WRITE)
flags |= O_WRONLY;
else if (mode & BLK_OPEN_READ)
flags |= O_RDONLY; /* homeopathic, because O_RDONLY is 0 */
else
WARN_ON_ONCE(true);
if (mode & BLK_OPEN_NDELAY)
flags |= O_NDELAY;
return flags;
}
struct file *bdev_file_open_by_dev(dev_t dev, blk_mode_t mode, void *holder,
const struct blk_holder_ops *hops)
{
struct file *bdev_file;
struct block_device *bdev;
unsigned int flags;
int ret;
ret = bdev_permission(dev, mode, holder);
if (ret)
return ERR_PTR(ret);
bdev = blkdev_get_no_open(dev);
if (!bdev)
return ERR_PTR(-ENXIO);
flags = blk_to_file_flags(mode);
bdev_file = alloc_file_pseudo_noaccount(bdev->bd_inode,
blockdev_mnt, "", flags | O_LARGEFILE, &def_blk_fops);
if (IS_ERR(bdev_file)) {
blkdev_put_no_open(bdev);
return bdev_file;
}
ihold(bdev->bd_inode);
ret = bdev_open(bdev, mode, holder, hops, bdev_file);
if (ret) {
/* We failed to open the block device. Let ->release() know. */
bdev_file->private_data = ERR_PTR(ret);
fput(bdev_file);
return ERR_PTR(ret);
}
return bdev_file;
}
EXPORT_SYMBOL(bdev_file_open_by_dev);
struct file *bdev_file_open_by_path(const char *path, blk_mode_t mode,
void *holder,
const struct blk_holder_ops *hops)
{
struct file *file;
dev_t dev;
int error;
@ -940,22 +993,28 @@ struct bdev_handle *bdev_open_by_path(const char *path, blk_mode_t mode,
if (error)
return ERR_PTR(error);
handle = bdev_open_by_dev(dev, mode, holder, hops);
if (!IS_ERR(handle) && (mode & BLK_OPEN_WRITE) &&
bdev_read_only(handle->bdev)) {
bdev_release(handle);
return ERR_PTR(-EACCES);
file = bdev_file_open_by_dev(dev, mode, holder, hops);
if (!IS_ERR(file) && (mode & BLK_OPEN_WRITE)) {
if (bdev_read_only(file_bdev(file))) {
fput(file);
file = ERR_PTR(-EACCES);
}
}
return handle;
return file;
}
EXPORT_SYMBOL(bdev_open_by_path);
EXPORT_SYMBOL(bdev_file_open_by_path);
void bdev_release(struct bdev_handle *handle)
void bdev_release(struct file *bdev_file)
{
struct block_device *bdev = handle->bdev;
struct block_device *bdev = file_bdev(bdev_file);
void *holder = bdev_file->private_data;
struct gendisk *disk = bdev->bd_disk;
/* We failed to open that block device. */
if (IS_ERR(holder))
goto put_no_open;
/*
* Sync early if it looks like we're the last one. If someone else
* opens the block device between now and the decrement of bd_openers
@ -967,10 +1026,10 @@ void bdev_release(struct bdev_handle *handle)
sync_blockdev(bdev);
mutex_lock(&disk->open_mutex);
bdev_yield_write_access(bdev, handle->mode);
bdev_yield_write_access(bdev_file);
if (handle->holder)
bd_end_claim(bdev, handle->holder);
if (holder)
bd_end_claim(bdev, holder);
/*
* Trigger event checking and tell drivers to flush MEDIA_CHANGE
@ -986,10 +1045,9 @@ void bdev_release(struct bdev_handle *handle)
mutex_unlock(&disk->open_mutex);
module_put(disk->fops->owner);
put_no_open:
blkdev_put_no_open(bdev);
kfree(handle);
}
EXPORT_SYMBOL(bdev_release);
/**
* lookup_bdev() - Look up a struct block_device by name.

4
block/blk.h
View File

@ -516,4 +516,8 @@ static inline int req_ref_read(struct request *req)
return atomic_read(&req->ref);
}
void bdev_release(struct file *bdev_file);
int bdev_open(struct block_device *bdev, blk_mode_t mode, void *holder,
const struct blk_holder_ops *hops, struct file *bdev_file);
int bdev_permission(dev_t dev, blk_mode_t mode, void *holder);
#endif /* BLK_INTERNAL_H */

46
block/fops.c
View File

@ -572,18 +572,17 @@ static int blkdev_fsync(struct file *filp, loff_t start, loff_t end,
blk_mode_t file_to_blk_mode(struct file *file)
{
blk_mode_t mode = 0;
struct bdev_handle *handle = file->private_data;
if (file->f_mode & FMODE_READ)
mode |= BLK_OPEN_READ;
if (file->f_mode & FMODE_WRITE)
mode |= BLK_OPEN_WRITE;
/*
* do_dentry_open() clears O_EXCL from f_flags, use handle->mode to
* determine whether the open was exclusive for already open files.
* do_dentry_open() clears O_EXCL from f_flags, use file->private_data
* to determine whether the open was exclusive for already open files.
*/
if (handle)
mode |= handle->mode & BLK_OPEN_EXCL;
if (file->private_data)
mode |= BLK_OPEN_EXCL;
else if (file->f_flags & O_EXCL)
mode |= BLK_OPEN_EXCL;
if (file->f_flags & O_NDELAY)
@ -602,36 +601,31 @@ blk_mode_t file_to_blk_mode(struct file *file)
static int blkdev_open(struct inode *inode, struct file *filp)
{
struct bdev_handle *handle;
struct block_device *bdev;
blk_mode_t mode;
/*
* Preserve backwards compatibility and allow large file access
* even if userspace doesn't ask for it explicitly. Some mkfs
* binary needs it. We might want to drop this workaround
* during an unstable branch.
*/
filp->f_flags |= O_LARGEFILE;
filp->f_mode |= FMODE_BUF_RASYNC | FMODE_CAN_ODIRECT;
int ret;
mode = file_to_blk_mode(filp);
handle = bdev_open_by_dev(inode->i_rdev, mode,
mode & BLK_OPEN_EXCL ? filp : NULL, NULL);
if (IS_ERR(handle))
return PTR_ERR(handle);
/* Use the file as the holder. */
if (mode & BLK_OPEN_EXCL)
filp->private_data = filp;
ret = bdev_permission(inode->i_rdev, mode, filp->private_data);
if (ret)
return ret;
if (bdev_nowait(handle->bdev))
filp->f_mode |= FMODE_NOWAIT;
bdev = blkdev_get_no_open(inode->i_rdev);
if (!bdev)
return -ENXIO;
filp->f_mapping = handle->bdev->bd_inode->i_mapping;
filp->f_wb_err = filemap_sample_wb_err(filp->f_mapping);
filp->private_data = handle;
return 0;
ret = bdev_open(bdev, mode, filp->private_data, NULL, filp);
if (ret)
blkdev_put_no_open(bdev);
return ret;
}
static int blkdev_release(struct inode *inode, struct file *filp)
{
bdev_release(filp->private_data);
bdev_release(filp);
return 0;
}

12
block/genhd.c
View File

@ -342,7 +342,7 @@ EXPORT_SYMBOL_GPL(disk_uevent);
int disk_scan_partitions(struct gendisk *disk, blk_mode_t mode)
{
struct bdev_handle *handle;
struct file *file;
int ret = 0;
if (disk->flags & (GENHD_FL_NO_PART | GENHD_FL_HIDDEN))
@ -366,12 +366,12 @@ int disk_scan_partitions(struct gendisk *disk, blk_mode_t mode)
}
set_bit(GD_NEED_PART_SCAN, &disk->state);
handle = bdev_open_by_dev(disk_devt(disk), mode & ~BLK_OPEN_EXCL, NULL,
NULL);
if (IS_ERR(handle))
ret = PTR_ERR(handle);
file = bdev_file_open_by_dev(disk_devt(disk), mode & ~BLK_OPEN_EXCL,
NULL, NULL);
if (IS_ERR(file))
ret = PTR_ERR(file);
else
bdev_release(handle);
fput(file);
/*
* If blkdev_get_by_dev() failed early, GD_NEED_PART_SCAN is still set,

9
block/ioctl.c
View File

@ -469,7 +469,7 @@ static int blkdev_bszset(struct block_device *bdev, blk_mode_t mode,
int __user *argp)
{
int ret, n;
struct bdev_handle *handle;
struct file *file;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
@ -481,12 +481,11 @@ static int blkdev_bszset(struct block_device *bdev, blk_mode_t mode,
if (mode & BLK_OPEN_EXCL)
return set_blocksize(bdev, n);
handle = bdev_open_by_dev(bdev->bd_dev, mode, &bdev, NULL);
if (IS_ERR(handle))
file = bdev_file_open_by_dev(bdev->bd_dev, mode, &bdev, NULL);
if (IS_ERR(file))
return -EBUSY;
ret = set_blocksize(bdev, n);
bdev_release(handle);
fput(file);
return ret;
}

4
drivers/block/drbd/drbd_int.h
View File

@ -524,9 +524,9 @@ struct drbd_md {
struct drbd_backing_dev {
struct block_device *backing_bdev;
struct bdev_handle *backing_bdev_handle;
struct file *backing_bdev_file;
struct block_device *md_bdev;
struct bdev_handle *md_bdev_handle;
struct file *f_md_bdev;
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 */

58
drivers/block/drbd/drbd_nl.c
View File

@ -1635,45 +1635,45 @@ success:
return 0;
}
static struct bdev_handle *open_backing_dev(struct drbd_device *device,
static struct file *open_backing_dev(struct drbd_device *device,
const char *bdev_path, void *claim_ptr, bool do_bd_link)
{
struct bdev_handle *handle;
struct file *file;
int err = 0;
handle = bdev_open_by_path(bdev_path, BLK_OPEN_READ | BLK_OPEN_WRITE,
claim_ptr, NULL);
if (IS_ERR(handle)) {
file = bdev_file_open_by_path(bdev_path, BLK_OPEN_READ | BLK_OPEN_WRITE,
claim_ptr, NULL);
if (IS_ERR(file)) {
drbd_err(device, "open(\"%s\") failed with %ld\n",
bdev_path, PTR_ERR(handle));
return handle;
bdev_path, PTR_ERR(file));
return file;
}
if (!do_bd_link)
return handle;
return file;
err = bd_link_disk_holder(handle->bdev, device->vdisk);
err = bd_link_disk_holder(file_bdev(file), device->vdisk);
if (err) {
bdev_release(handle);
fput(file);
drbd_err(device, "bd_link_disk_holder(\"%s\", ...) failed with %d\n",
bdev_path, err);
handle = ERR_PTR(err);
file = ERR_PTR(err);
}
return handle;
return file;
}
static int open_backing_devices(struct drbd_device *device,
struct disk_conf *new_disk_conf,
struct drbd_backing_dev *nbc)
{
struct bdev_handle *handle;
struct file *file;
handle = open_backing_dev(device, new_disk_conf->backing_dev, device,
file = open_backing_dev(device, new_disk_conf->backing_dev, device,
true);
if (IS_ERR(handle))
if (IS_ERR(file))
return ERR_OPEN_DISK;
nbc->backing_bdev = handle->bdev;
nbc->backing_bdev_handle = handle;
nbc->backing_bdev = file_bdev(file);
nbc->backing_bdev_file = file;
/*
* meta_dev_idx >= 0: external fixed size, possibly multiple
@ -1683,7 +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)
*/
handle = open_backing_dev(device, new_disk_conf->meta_dev,
file = 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,
@ -1691,21 +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(handle))
if (IS_ERR(file))
return ERR_OPEN_MD_DISK;
nbc->md_bdev = handle->bdev;
nbc->md_bdev_handle = handle;
nbc->md_bdev = file_bdev(file);
nbc->f_md_bdev = file;
return NO_ERROR;
}
static void close_backing_dev(struct drbd_device *device,
struct bdev_handle *handle, bool do_bd_unlink)
struct file *bdev_file, bool do_bd_unlink)
{
if (!handle)
if (!bdev_file)
return;
if (do_bd_unlink)
bd_unlink_disk_holder(handle->bdev, device->vdisk);
bdev_release(handle);
bd_unlink_disk_holder(file_bdev(bdev_file), device->vdisk);
fput(bdev_file);
}
void drbd_backing_dev_free(struct drbd_device *device, struct drbd_backing_dev *ldev)
@ -1713,9 +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_handle,
close_backing_dev(device, ldev->f_md_bdev,
ldev->md_bdev != ldev->backing_bdev);
close_backing_dev(device, ldev->backing_bdev_handle, true);
close_backing_dev(device, ldev->backing_bdev_file, true);
kfree(ldev->disk_conf);
kfree(ldev);
@ -2131,9 +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_handle,
close_backing_dev(device, nbc->f_md_bdev,
nbc->md_bdev != nbc->backing_bdev);
close_backing_dev(device, nbc->backing_bdev_handle, true);
close_backing_dev(device, nbc->backing_bdev_file, true);
kfree(nbc);
}
kfree(new_disk_conf);

68
drivers/block/pktcdvd.c
View File

@ -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_handle->bdev->bd_dev),
MINOR(pd->bdev_handle->bdev->bd_dev));
MAJOR(file_bdev(pd->bdev_file)->bd_dev),
MINOR(file_bdev(pd->bdev_file)->bd_dev));
}
mutex_unlock(&ctl_mutex);
return n;
@ -438,7 +438,7 @@ static int pkt_seq_show(struct seq_file *m, void *p)
int states[PACKET_NUM_STATES];
seq_printf(m, "Writer %s mapped to %pg:\n", pd->disk->disk_name,
pd->bdev_handle->bdev);
file_bdev(pd->bdev_file));
seq_printf(m, "\nSettings:\n");
seq_printf(m, "\tpacket size:\t\t%dkB\n", pd->settings.size / 2);
@ -715,7 +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_handle->bdev);
struct request_queue *q = bdev_get_queue(file_bdev(pd->bdev_file));
struct scsi_cmnd *scmd;
struct request *rq;
int ret = 0;
@ -1048,7 +1048,7 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
continue;
bio = pkt->r_bios[f];
bio_init(bio, pd->bdev_handle->bdev, bio->bi_inline_vecs, 1,
bio_init(bio, file_bdev(pd->bdev_file), 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;
@ -1264,7 +1264,7 @@ 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_handle->bdev, pkt->w_bio->bi_inline_vecs,
bio_init(pkt->w_bio, file_bdev(pd->bdev_file), 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;
@ -2162,20 +2162,20 @@ static int pkt_open_dev(struct pktcdvd_device *pd, bool write)
int ret;
long lba;
struct request_queue *q;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
/*
* 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_handle = bdev_open_by_dev(pd->bdev_handle->bdev->bd_dev,
bdev_file = bdev_file_open_by_dev(file_bdev(pd->bdev_file)->bd_dev,
BLK_OPEN_READ, pd, NULL);
if (IS_ERR(bdev_handle)) {
ret = PTR_ERR(bdev_handle);
if (IS_ERR(bdev_file)) {
ret = PTR_ERR(bdev_file);
goto out;
}
pd->open_bdev_handle = bdev_handle;
pd->f_open_bdev = bdev_file;
ret = pkt_get_last_written(pd, &lba);
if (ret) {
@ -2184,9 +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_handle->bdev->bd_disk, lba << 2);
set_capacity_and_notify(file_bdev(pd->bdev_file)->bd_disk, lba << 2);
q = bdev_get_queue(pd->bdev_handle->bdev);
q = bdev_get_queue(file_bdev(pd->bdev_file));
if (write) {
ret = pkt_open_write(pd);
if (ret)
@ -2218,7 +2218,7 @@ static int pkt_open_dev(struct pktcdvd_device *pd, bool write)
return 0;
out_putdev:
bdev_release(bdev_handle);
fput(bdev_file);
out:
return ret;
}
@ -2237,8 +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);
bdev_release(pd->open_bdev_handle);
pd->open_bdev_handle = NULL;
fput(pd->f_open_bdev);
pd->f_open_bdev = NULL;
pkt_shrink_pktlist(pd);
}
@ -2326,7 +2326,7 @@ 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_handle->bdev, bio,
struct bio *cloned_bio = bio_alloc_clone(file_bdev(pd->bdev_file), bio,
GFP_NOIO, &pkt_bio_set);
struct packet_stacked_data *psd = mempool_alloc(&psd_pool, GFP_NOIO);
@ -2497,7 +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 bdev_handle *bdev_handle;
struct file *bdev_file;
struct scsi_device *sdev;
if (pd->pkt_dev == dev) {
@ -2508,9 +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_handle->bdev->bd_dev == dev) {
if (file_bdev(pd2->bdev_file)->bd_dev == dev) {
dev_err(ddev, "%pg already setup\n",
pd2->bdev_handle->bdev);
file_bdev(pd2->bdev_file));
return -EBUSY;
}
if (pd2->pkt_dev == dev) {
@ -2519,13 +2519,13 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
}
}
bdev_handle = bdev_open_by_dev(dev, BLK_OPEN_READ | BLK_OPEN_NDELAY,
bdev_file = bdev_file_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 (IS_ERR(bdev_file))
return PTR_ERR(bdev_file);
sdev = scsi_device_from_queue(file_bdev(bdev_file)->bd_disk->queue);
if (!sdev) {
bdev_release(bdev_handle);
fput(bdev_file);
return -EINVAL;
}
put_device(&sdev->sdev_gendev);
@ -2533,8 +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_handle = bdev_handle;
set_blocksize(bdev_handle->bdev, CD_FRAMESIZE);
pd->bdev_file = bdev_file;
set_blocksize(file_bdev(bdev_file), CD_FRAMESIZE);
pkt_init_queue(pd);
@ -2546,11 +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_handle->bdev);
dev_notice(ddev, "writer mapped to %pg\n", file_bdev(bdev_file));
return 0;
out_mem:
bdev_release(bdev_handle);
fput(bdev_file);
/* This is safe: open() is still holding a reference. */
module_put(THIS_MODULE);
return -ENOMEM;
@ -2605,9 +2605,9 @@ static unsigned int pkt_check_events(struct gendisk *disk,
if (!pd)
return 0;
if (!pd->bdev_handle)
if (!pd->bdev_file)
return 0;
attached_disk = pd->bdev_handle->bdev->bd_disk;
attached_disk = file_bdev(pd->bdev_file)->bd_disk;
if (!attached_disk || !attached_disk->fops->check_events)
return 0;
return attached_disk->fops->check_events(attached_disk, clearing);
@ -2692,7 +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_handle->bdev->bd_disk->events;
disk->events = file_bdev(pd->bdev_file)->bd_disk->events;
ret = add_disk(disk);
if (ret)
@ -2757,7 +2757,7 @@ static int pkt_remove_dev(dev_t pkt_dev)
pkt_debugfs_dev_remove(pd);
pkt_sysfs_dev_remove(pd);
bdev_release(pd->bdev_handle);
fput(pd->bdev_file);
remove_proc_entry(pd->disk->disk_name, pkt_proc);
dev_notice(ddev, "writer unmapped\n");
@ -2784,7 +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_handle->bdev->bd_dev);
ctrl_cmd->dev = new_encode_dev(file_bdev(pd->bdev_file)->bd_dev);
ctrl_cmd->pkt_dev = new_encode_dev(pd->pkt_dev);
} else {
ctrl_cmd->dev = 0;

28
drivers/block/rnbd/rnbd-srv.c
View File

@ -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_handle->bdev, 1,
bio = bio_alloc(file_bdev(sess_dev->bdev_file), 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 */
bdev_release(sess_dev->bdev_handle);
fput(sess_dev->bdev_file);
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_handle->bdev;
struct block_device *bdev = file_bdev(sess_dev->bdev_file);
rsp->hdr.type = cpu_to_le16(RNBD_MSG_OPEN_RSP);
rsp->device_id = cpu_to_le32(sess_dev->device_id);
@ -560,7 +560,7 @@ 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 bdev_handle *handle, bool readonly,
struct file *bdev_file, bool readonly,
struct rnbd_srv_dev *srv_dev)
{
struct rnbd_srv_sess_dev *sdev = rnbd_sess_dev_alloc(srv_sess);
@ -572,7 +572,7 @@ rnbd_srv_create_set_sess_dev(struct rnbd_srv_session *srv_sess,
strscpy(sdev->pathname, open_msg->dev_name, sizeof(sdev->pathname));
sdev->bdev_handle = handle;
sdev->bdev_file = bdev_file;
sdev->sess = srv_sess;
sdev->dev = srv_dev;
sdev->readonly = readonly;
@ -678,7 +678,7 @@ 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 bdev_handle *bdev_handle;
struct file *bdev_file;
blk_mode_t open_flags = BLK_OPEN_READ;
char *full_path;
struct rnbd_msg_open_rsp *rsp = data;
@ -716,15 +716,15 @@ static int process_msg_open(struct rnbd_srv_session *srv_sess,
goto reject;
}
bdev_handle = bdev_open_by_path(full_path, open_flags, NULL, NULL);
if (IS_ERR(bdev_handle)) {
ret = PTR_ERR(bdev_handle);
bdev_file = bdev_file_open_by_path(full_path, open_flags, NULL, NULL);
if (IS_ERR(bdev_file)) {
ret = PTR_ERR(bdev_file);
pr_err("Opening device '%s' on session %s failed, failed to open the block device, err: %pe\n",
full_path, srv_sess->sessname, bdev_handle);
full_path, srv_sess->sessname, bdev_file);
goto free_path;
}
srv_dev = rnbd_srv_get_or_create_srv_dev(bdev_handle->bdev, srv_sess,
srv_dev = rnbd_srv_get_or_create_srv_dev(file_bdev(bdev_file), 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: %pe\n",
@ -734,7 +734,7 @@ static int process_msg_open(struct rnbd_srv_session *srv_sess,
}
srv_sess_dev = rnbd_srv_create_set_sess_dev(srv_sess, open_msg,
bdev_handle,
bdev_file,
open_msg->access_mode == RNBD_ACCESS_RO,
srv_dev);
if (IS_ERR(srv_sess_dev)) {
@ -750,7 +750,7 @@ 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_handle->bdev);
ret = rnbd_srv_create_dev_sysfs(srv_dev, file_bdev(bdev_file));
if (ret) {
mutex_unlock(&srv_dev->lock);
rnbd_srv_err(srv_sess_dev,
@ -793,7 +793,7 @@ srv_dev_put:
}
rnbd_put_srv_dev(srv_dev);
blkdev_put:
bdev_release(bdev_handle);
fput(bdev_file);
free_path:
kfree(full_path);
reject:

2
drivers/block/rnbd/rnbd-srv.h
View File

@ -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 bdev_handle *bdev_handle;
struct file *bdev_file;
struct rnbd_srv_session *sess;
struct rnbd_srv_dev *dev;
struct kobject kobj;

4
drivers/block/xen-blkback/blkback.c
View File

@ -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_handle->bdev;
req->bdev = file_bdev(vbd->bdev_file);
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_handle->bdev;
struct block_device *bdev = file_bdev(blkif->vbd.bdev_file);
struct phys_req preq;
xen_blkif_get(blkif);

4
drivers/block/xen-blkback/common.h
View File

@ -221,7 +221,7 @@ struct xen_vbd {
unsigned char type;
/* phys device that this vbd maps to. */
u32 pdevice;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
/* 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_handle->bdev)
#define vbd_sz(_v) bdev_nr_sectors(file_bdev((_v)->bdev_file))
#define xen_blkif_get(_b) (atomic_inc(&(_b)->refcnt))
#define xen_blkif_put(_b) \

37
drivers/block/xen-blkback/xenbus.c
View File

@ -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_handle)
if (!blkif->rings || !blkif->rings[0].irq || !blkif->vbd.bdev_file)
return;
/* Already connected? */
@ -99,13 +99,12 @@ static void xen_update_blkif_status(struct xen_blkif *blkif)
return;
}
err = sync_blockdev(blkif->vbd.bdev_handle->bdev);
err = sync_blockdev(file_bdev(blkif->vbd.bdev_file));
if (err) {
xenbus_dev_error(blkif->be->dev, err, "block flush");
return;
}
invalidate_inode_pages2(
blkif->vbd.bdev_handle->bdev->bd_inode->i_mapping);
invalidate_inode_pages2(blkif->vbd.bdev_file->f_mapping);
for (i = 0; i < blkif->nr_rings; i++) {
ring = &blkif->rings[i];
@ -473,9 +472,9 @@ static void xenvbd_sysfs_delif(struct xenbus_device *dev)
static void xen_vbd_free(struct xen_vbd *vbd)
{
if (vbd->bdev_handle)
bdev_release(vbd->bdev_handle);
vbd->bdev_handle = NULL;
if (vbd->bdev_file)
fput(vbd->bdev_file);
vbd->bdev_file = NULL;
}
static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,
@ -483,7 +482,7 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,
int cdrom)
{
struct xen_vbd *vbd;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
vbd = &blkif->vbd;
vbd->handle = handle;
@ -492,17 +491,17 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,
vbd->pdevice = MKDEV(major, minor);
bdev_handle = bdev_open_by_dev(vbd->pdevice, vbd->readonly ?
bdev_file = bdev_file_open_by_dev(vbd->pdevice, vbd->readonly ?
BLK_OPEN_READ : BLK_OPEN_WRITE, NULL, NULL);
if (IS_ERR(bdev_handle)) {
if (IS_ERR(bdev_file)) {
pr_warn("xen_vbd_create: device %08x could not be opened\n",
vbd->pdevice);
return -ENOENT;
}
vbd->bdev_handle = bdev_handle;
if (vbd->bdev_handle->bdev->bd_disk == NULL) {
vbd->bdev_file = bdev_file;
if (file_bdev(vbd->bdev_file)->bd_disk == NULL) {
pr_warn("xen_vbd_create: device %08x doesn't exist\n",
vbd->pdevice);
xen_vbd_free(vbd);
@ -510,14 +509,14 @@ 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_handle->bdev->bd_disk))
if (cdrom || disk_to_cdi(file_bdev(vbd->bdev_file)->bd_disk))
vbd->type |= VDISK_CDROM;
if (vbd->bdev_handle->bdev->bd_disk->flags & GENHD_FL_REMOVABLE)
if (file_bdev(vbd->bdev_file)->bd_disk->flags & GENHD_FL_REMOVABLE)
vbd->type |= VDISK_REMOVABLE;
if (bdev_write_cache(bdev_handle->bdev))
if (bdev_write_cache(file_bdev(bdev_file)))
vbd->flush_support = true;
if (bdev_max_secure_erase_sectors(bdev_handle->bdev))
if (bdev_max_secure_erase_sectors(file_bdev(bdev_file)))
vbd->discard_secure = true;
pr_debug("Successful creation of handle=%04x (dom=%u)\n",
@ -570,7 +569,7 @@ 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_handle->bdev;
struct block_device *bdev = file_bdev(be->blkif->vbd.bdev_file);
if (!xenbus_read_unsigned(dev->nodename, "discard-enable", 1))
return;
@ -932,7 +931,7 @@ again:
}
err = xenbus_printf(xbt, dev->nodename, "sector-size", "%lu",
(unsigned long)bdev_logical_block_size(
be->blkif->vbd.bdev_handle->bdev));
file_bdev(be->blkif->vbd.bdev_file)));
if (err) {
xenbus_dev_fatal(dev, err, "writing %s/sector-size",
dev->nodename);
@ -940,7 +939,7 @@ again:
}
err = xenbus_printf(xbt, dev->nodename, "physical-sector-size", "%u",
bdev_physical_block_size(
be->blkif->vbd.bdev_handle->bdev));
file_bdev(be->blkif->vbd.bdev_file)));
if (err)
xenbus_dev_error(dev, err, "writing %s/physical-sector-size",
dev->nodename);

26
drivers/block/zram/zram_drv.c
View File

@ -426,11 +426,11 @@ static void reset_bdev(struct zram *zram)
if (!zram->backing_dev)
return;
bdev_release(zram->bdev_handle);
fput(zram->bdev_file);
/* hope filp_close flush all of IO */
filp_close(zram->backing_dev, NULL);
zram->backing_dev = NULL;
zram->bdev_handle = NULL;
zram->bdev_file = NULL;
zram->disk->fops = &zram_devops;
kvfree(zram->bitmap);
zram->bitmap = NULL;
@ -476,7 +476,7 @@ static ssize_t backing_dev_store(struct device *dev,
struct address_space *mapping;
unsigned int bitmap_sz;
unsigned long nr_pages, *bitmap = NULL;
struct bdev_handle *bdev_handle = NULL;
struct file *bdev_file = NULL;
int err;
struct zram *zram = dev_to_zram(dev);
@ -513,11 +513,11 @@ static ssize_t backing_dev_store(struct device *dev,
goto out;
}
bdev_handle = bdev_open_by_dev(inode->i_rdev,
bdev_file = bdev_file_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;
if (IS_ERR(bdev_file)) {
err = PTR_ERR(bdev_file);
bdev_file = NULL;
goto out;
}
@ -531,7 +531,7 @@ static ssize_t backing_dev_store(struct device *dev,
reset_bdev(zram);
zram->bdev_handle = bdev_handle;
zram->bdev_file = bdev_file;
zram->backing_dev = backing_dev;
zram->bitmap = bitmap;
zram->nr_pages = nr_pages;
@ -544,8 +544,8 @@ static ssize_t backing_dev_store(struct device *dev,
out:
kvfree(bitmap);
if (bdev_handle)
bdev_release(bdev_handle);
if (bdev_file)
fput(bdev_file);
if (backing_dev)
filp_close(backing_dev, NULL);
@ -587,7 +587,7 @@ static void read_from_bdev_async(struct zram *zram, struct page *page,
{
struct bio *bio;
bio = bio_alloc(zram->bdev_handle->bdev, 1, parent->bi_opf, GFP_NOIO);
bio = bio_alloc(file_bdev(zram->bdev_file), 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);
@ -703,7 +703,7 @@ static ssize_t writeback_store(struct device *dev,
continue;
}
bio_init(&bio, zram->bdev_handle->bdev, &bio_vec, 1,
bio_init(&bio, file_bdev(zram->bdev_file), &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);
@ -785,7 +785,7 @@ static void zram_sync_read(struct work_struct *work)
struct bio_vec bv;
struct bio bio;
bio_init(&bio, zw->zram->bdev_handle->bdev, &bv, 1, REQ_OP_READ);
bio_init(&bio, file_bdev(zw->zram->bdev_file), &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);

2
drivers/block/zram/zram_drv.h
View File

@ -132,7 +132,7 @@ struct zram {
spinlock_t wb_limit_lock;
bool wb_limit_enable;
u64 bd_wb_limit;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
unsigned long *bitmap;
unsigned long nr_pages;
#endif

4
drivers/md/bcache/bcache.h
View File

@ -300,7 +300,7 @@ struct cached_dev {
struct list_head list;
struct bcache_device disk;
struct block_device *bdev;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct cache_sb sb;
struct cache_sb_disk *sb_disk;
@ -423,7 +423,7 @@ struct cache {
struct kobject kobj;
struct block_device *bdev;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct task_struct *alloc_thread;

74
drivers/md/bcache/super.c
View File

@ -1369,8 +1369,8 @@ static CLOSURE_CALLBACK(cached_dev_free)
if (dc->sb_disk)
put_page(virt_to_page(dc->sb_disk));
if (dc->bdev_handle)
bdev_release(dc->bdev_handle);
if (dc->bdev_file)
fput(dc->bdev_file);
wake_up(&unregister_wait);
@ -1445,7 +1445,7 @@ static int cached_dev_init(struct cached_dev *dc, unsigned int block_size)
/* Cached device - bcache superblock */
static int register_bdev(struct cache_sb *sb, struct cache_sb_disk *sb_disk,
struct bdev_handle *bdev_handle,
struct file *bdev_file,
struct cached_dev *dc)
{
const char *err = "cannot allocate memory";
@ -1453,8 +1453,8 @@ static int register_bdev(struct cache_sb *sb, struct cache_sb_disk *sb_disk,
int ret = -ENOMEM;
memcpy(&dc->sb, sb, sizeof(struct cache_sb));
dc->bdev_handle = bdev_handle;
dc->bdev = bdev_handle->bdev;
dc->bdev_file = bdev_file;
dc->bdev = file_bdev(bdev_file);
dc->sb_disk = sb_disk;
if (cached_dev_init(dc, sb->block_size << 9))
@ -2218,8 +2218,8 @@ void bch_cache_release(struct kobject *kobj)
if (ca->sb_disk)
put_page(virt_to_page(ca->sb_disk));
if (ca->bdev_handle)
bdev_release(ca->bdev_handle);
if (ca->bdev_file)
fput(ca->bdev_file);
kfree(ca);
module_put(THIS_MODULE);
@ -2339,18 +2339,18 @@ err_free:
}
static int register_cache(struct cache_sb *sb, struct cache_sb_disk *sb_disk,
struct bdev_handle *bdev_handle,
struct file *bdev_file,
struct cache *ca)
{
const char *err = NULL; /* must be set for any error case */
int ret = 0;
memcpy(&ca->sb, sb, sizeof(struct cache_sb));
ca->bdev_handle = bdev_handle;
ca->bdev = bdev_handle->bdev;
ca->bdev_file = bdev_file;
ca->bdev = file_bdev(bdev_file);
ca->sb_disk = sb_disk;
if (bdev_max_discard_sectors((bdev_handle->bdev)))
if (bdev_max_discard_sectors(file_bdev(bdev_file)))
ca->discard = CACHE_DISCARD(&ca->sb);
ret = cache_alloc(ca);
@ -2361,20 +2361,20 @@ static int register_cache(struct cache_sb *sb, struct cache_sb_disk *sb_disk,
err = "cache_alloc(): cache device is too small";
else
err = "cache_alloc(): unknown error";
pr_notice("error %pg: %s\n", bdev_handle->bdev, err);
pr_notice("error %pg: %s\n", file_bdev(bdev_file), err);
/*
* If we failed here, it means ca->kobj is not initialized yet,
* kobject_put() won't be called and there is no chance to
* call bdev_release() to bdev in bch_cache_release(). So
* we explicitly call bdev_release() here.
* call fput() to bdev in bch_cache_release(). So
* we explicitly call fput() on the block device here.
*/
bdev_release(bdev_handle);
fput(bdev_file);
return ret;
}
if (kobject_add(&ca->kobj, bdev_kobj(bdev_handle->bdev), "bcache")) {
if (kobject_add(&ca->kobj, bdev_kobj(file_bdev(bdev_file)), "bcache")) {
pr_notice("error %pg: error calling kobject_add\n",
bdev_handle->bdev);
file_bdev(bdev_file));
ret = -ENOMEM;
goto out;
}
@ -2388,7 +2388,7 @@ static int register_cache(struct cache_sb *sb, struct cache_sb_disk *sb_disk,
goto out;
}
pr_info("registered cache device %pg\n", ca->bdev_handle->bdev);
pr_info("registered cache device %pg\n", file_bdev(ca->bdev_file));
out:
kobject_put(&ca->kobj);
@ -2446,7 +2446,7 @@ struct async_reg_args {
char *path;
struct cache_sb *sb;
struct cache_sb_disk *sb_disk;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
void *holder;
};
@ -2457,7 +2457,7 @@ static void register_bdev_worker(struct work_struct *work)
container_of(work, struct async_reg_args, reg_work.work);
mutex_lock(&bch_register_lock);
if (register_bdev(args->sb, args->sb_disk, args->bdev_handle,
if (register_bdev(args->sb, args->sb_disk, args->bdev_file,
args->holder) < 0)
fail = true;
mutex_unlock(&bch_register_lock);
@ -2478,7 +2478,7 @@ static void register_cache_worker(struct work_struct *work)
container_of(work, struct async_reg_args, reg_work.work);
/* blkdev_put() will be called in bch_cache_release() */
if (register_cache(args->sb, args->sb_disk, args->bdev_handle,
if (register_cache(args->sb, args->sb_disk, args->bdev_file,
args->holder))
fail = true;
@ -2516,7 +2516,7 @@ static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr,
char *path = NULL;
struct cache_sb *sb;
struct cache_sb_disk *sb_disk;
struct bdev_handle *bdev_handle, *bdev_handle2;
struct file *bdev_file, *bdev_file2;
void *holder = NULL;
ssize_t ret;
bool async_registration = false;
@ -2549,15 +2549,15 @@ static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr,
ret = -EINVAL;
err = "failed to open device";
bdev_handle = bdev_open_by_path(strim(path), BLK_OPEN_READ, NULL, NULL);
if (IS_ERR(bdev_handle))
bdev_file = bdev_file_open_by_path(strim(path), BLK_OPEN_READ, NULL, NULL);
if (IS_ERR(bdev_file))
goto out_free_sb;
err = "failed to set blocksize";
if (set_blocksize(bdev_handle->bdev, 4096))
if (set_blocksize(file_bdev(bdev_file), 4096))
goto out_blkdev_put;
err = read_super(sb, bdev_handle->bdev, &sb_disk);
err = read_super(sb, file_bdev(bdev_file), &sb_disk);
if (err)
goto out_blkdev_put;
@ -2569,13 +2569,13 @@ static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr,
}
/* Now reopen in exclusive mode with proper holder */
bdev_handle2 = bdev_open_by_dev(bdev_handle->bdev->bd_dev,
bdev_file2 = bdev_file_open_by_dev(file_bdev(bdev_file)->bd_dev,
BLK_OPEN_READ | BLK_OPEN_WRITE, holder, NULL);
bdev_release(bdev_handle);
bdev_handle = bdev_handle2;
if (IS_ERR(bdev_handle)) {
ret = PTR_ERR(bdev_handle);
bdev_handle = NULL;
fput(bdev_file);
bdev_file = bdev_file2;
if (IS_ERR(bdev_file)) {
ret = PTR_ERR(bdev_file);
bdev_file = NULL;
if (ret == -EBUSY) {
dev_t dev;
@ -2610,7 +2610,7 @@ static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr,
args->path = path;
args->sb = sb;
args->sb_disk = sb_disk;
args->bdev_handle = bdev_handle;
args->bdev_file = bdev_file;
args->holder = holder;
register_device_async(args);
/* No wait and returns to user space */
@ -2619,14 +2619,14 @@ static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr,
if (SB_IS_BDEV(sb)) {
mutex_lock(&bch_register_lock);
ret = register_bdev(sb, sb_disk, bdev_handle, holder);
ret = register_bdev(sb, sb_disk, bdev_file, holder);
mutex_unlock(&bch_register_lock);
/* blkdev_put() will be called in cached_dev_free() */
if (ret < 0)
goto out_free_sb;
} else {
/* blkdev_put() will be called in bch_cache_release() */
ret = register_cache(sb, sb_disk, bdev_handle, holder);
ret = register_cache(sb, sb_disk, bdev_file, holder);
if (ret)
goto out_free_sb;
}
@ -2642,8 +2642,8 @@ out_free_holder:
out_put_sb_page:
put_page(virt_to_page(sb_disk));
out_blkdev_put:
if (bdev_handle)
bdev_release(bdev_handle);
if (bdev_file)
fput(bdev_file);
out_free_sb:
kfree(sb);
out_free_path:

23
drivers/md/dm.c
View File

@ -726,7 +726,8 @@ static struct table_device *open_table_device(struct mapped_device *md,
dev_t dev, blk_mode_t mode)
{
struct table_device *td;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct block_device *bdev;
u64 part_off;
int r;
@ -735,34 +736,36 @@ static struct table_device *open_table_device(struct mapped_device *md,
return ERR_PTR(-ENOMEM);
refcount_set(&td->count, 1);
bdev_handle = bdev_open_by_dev(dev, mode, _dm_claim_ptr, NULL);
if (IS_ERR(bdev_handle)) {
r = PTR_ERR(bdev_handle);
bdev_file = bdev_file_open_by_dev(dev, mode, _dm_claim_ptr, NULL);
if (IS_ERR(bdev_file)) {
r = PTR_ERR(bdev_file);
goto out_free_td;
}
bdev = file_bdev(bdev_file);
/*
* We can be called before the dm disk is added. In that case we can't
* register the holder relation here. It will be done once add_disk was
* called.
*/
if (md->disk->slave_dir) {
r = bd_link_disk_holder(bdev_handle->bdev, md->disk);
r = bd_link_disk_holder(bdev, md->disk);
if (r)
goto out_blkdev_put;
}
td->dm_dev.mode = mode;
td->dm_dev.bdev = bdev_handle->bdev;
td->dm_dev.bdev_handle = bdev_handle;
td->dm_dev.dax_dev = fs_dax_get_by_bdev(bdev_handle->bdev, &part_off,
td->dm_dev.bdev = bdev;
td->dm_dev.bdev_file = bdev_file;
td->dm_dev.dax_dev = fs_dax_get_by_bdev(bdev, &part_off,
NULL, NULL);
format_dev_t(td->dm_dev.name, dev);
list_add(&td->list, &md->table_devices);
return td;
out_blkdev_put:
bdev_release(bdev_handle);
fput(bdev_file);
out_free_td:
kfree(td);
return ERR_PTR(r);
@ -775,7 +778,7 @@ static void close_table_device(struct table_device *td, struct mapped_device *md
{
if (md->disk->slave_dir)
bd_unlink_disk_holder(td->dm_dev.bdev, md->disk);
bdev_release(td->dm_dev.bdev_handle);
fput(td->dm_dev.bdev_file);
put_dax(td->dm_dev.dax_dev);
list_del(&td->list);
kfree(td);

12
drivers/md/md.c
View File

@ -2582,7 +2582,7 @@ static void export_rdev(struct md_rdev *rdev, struct mddev *mddev)
if (test_bit(AutoDetected, &rdev->flags))
md_autodetect_dev(rdev->bdev->bd_dev);
#endif
bdev_release(rdev->bdev_handle);
fput(rdev->bdev_file);
rdev->bdev = NULL;
kobject_put(&rdev->kobj);
}
@ -3777,16 +3777,16 @@ static struct md_rdev *md_import_device(dev_t newdev, int super_format, int supe
if (err)
goto out_clear_rdev;
rdev->bdev_handle = bdev_open_by_dev(newdev,
rdev->bdev_file = bdev_file_open_by_dev(newdev,
BLK_OPEN_READ | BLK_OPEN_WRITE,
super_format == -2 ? &claim_rdev : rdev, NULL);
if (IS_ERR(rdev->bdev_handle)) {
if (IS_ERR(rdev->bdev_file)) {
pr_warn("md: could not open device unknown-block(%u,%u).\n",
MAJOR(newdev), MINOR(newdev));
err = PTR_ERR(rdev->bdev_handle);
err = PTR_ERR(rdev->bdev_file);
goto out_clear_rdev;
}
rdev->bdev = rdev->bdev_handle->bdev;
rdev->bdev = file_bdev(rdev->bdev_file);
kobject_init(&rdev->kobj, &rdev_ktype);
@ -3817,7 +3817,7 @@ static struct md_rdev *md_import_device(dev_t newdev, int super_format, int supe
return rdev;
out_blkdev_put:
bdev_release(rdev->bdev_handle);
fput(rdev->bdev_file);
out_clear_rdev:
md_rdev_clear(rdev);
out_free_rdev:

2
drivers/md/md.h
View File

@ -59,7 +59,7 @@ struct md_rdev {
*/
struct block_device *meta_bdev;
struct block_device *bdev; /* block device handle */
struct bdev_handle *bdev_handle; /* Handle from open for bdev */
struct file *bdev_file; /* Handle from open for bdev */
struct page *sb_page, *bb_page;
int sb_loaded;

46
drivers/mtd/devices/block2mtd.c
View File

@ -37,7 +37,7 @@
/* Info for the block device */
struct block2mtd_dev {
struct list_head list;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct mtd_info mtd;
struct mutex write_mutex;
};
@ -55,8 +55,7 @@ static struct page *page_read(struct address_space *mapping, pgoff_t index)
/* erase a specified part of the device */
static int _block2mtd_erase(struct block2mtd_dev *dev, loff_t to, size_t len)
{
struct address_space *mapping =
dev->bdev_handle->bdev->bd_inode->i_mapping;
struct address_space *mapping = dev->bdev_file->f_mapping;
struct page *page;
pgoff_t index = to >> PAGE_SHIFT; // page index
int pages = len >> PAGE_SHIFT;
@ -106,8 +105,7 @@ static int block2mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
struct block2mtd_dev *dev = mtd->priv;
struct address_space *mapping =
dev->bdev_handle->bdev->bd_inode->i_mapping;
struct address_space *mapping = dev->bdev_file->f_mapping;
struct page *page;
pgoff_t index = from >> PAGE_SHIFT;
int offset = from & (PAGE_SIZE-1);
@ -142,8 +140,7 @@ static int _block2mtd_write(struct block2mtd_dev *dev, const u_char *buf,
loff_t to, size_t len, size_t *retlen)
{
struct page *page;
struct address_space *mapping =
dev->bdev_handle->bdev->bd_inode->i_mapping;
struct address_space *mapping = dev->bdev_file->f_mapping;
pgoff_t index = to >> PAGE_SHIFT; // page index
int offset = to & ~PAGE_MASK; // page offset
int cpylen;
@ -198,7 +195,7 @@ static int block2mtd_write(struct mtd_info *mtd, loff_t to, size_t len,
static void block2mtd_sync(struct mtd_info *mtd)
{
struct block2mtd_dev *dev = mtd->priv;
sync_blockdev(dev->bdev_handle->bdev);
sync_blockdev(file_bdev(dev->bdev_file));
return;
}
@ -210,10 +207,9 @@ static void block2mtd_free_device(struct block2mtd_dev *dev)
kfree(dev->mtd.name);
if (dev->bdev_handle) {
invalidate_mapping_pages(
dev->bdev_handle->bdev->bd_inode->i_mapping, 0, -1);
bdev_release(dev->bdev_handle);
if (dev->bdev_file) {
invalidate_mapping_pages(dev->bdev_file->f_mapping, 0, -1);
fput(dev->bdev_file);
}
kfree(dev);
@ -223,10 +219,10 @@ static void block2mtd_free_device(struct block2mtd_dev *dev)
* This function is marked __ref because it calls the __init marked
* early_lookup_bdev when called from the early boot code.
*/
static struct bdev_handle __ref *mdtblock_early_get_bdev(const char *devname,
static struct file __ref *mdtblock_early_get_bdev(const char *devname,
blk_mode_t mode, int timeout, struct block2mtd_dev *dev)
{
struct bdev_handle *bdev_handle = ERR_PTR(-ENODEV);
struct file *bdev_file = ERR_PTR(-ENODEV);
#ifndef MODULE
int i;
@ -234,7 +230,7 @@ static struct bdev_handle __ref *mdtblock_early_get_bdev(const char *devname,
* We can't use early_lookup_bdev from a running system.
*/
if (system_state >= SYSTEM_RUNNING)
return bdev_handle;
return bdev_file;
/*
* We might not have the root device mounted at this point.
@ -253,20 +249,20 @@ static struct bdev_handle __ref *mdtblock_early_get_bdev(const char *devname,
wait_for_device_probe();
if (!early_lookup_bdev(devname, &devt)) {
bdev_handle = bdev_open_by_dev(devt, mode, dev, NULL);
if (!IS_ERR(bdev_handle))
bdev_file = bdev_file_open_by_dev(devt, mode, dev, NULL);
if (!IS_ERR(bdev_file))
break;
}
}
#endif
return bdev_handle;
return bdev_file;
}
static struct block2mtd_dev *add_device(char *devname, int erase_size,
char *label, int timeout)
{
const blk_mode_t mode = BLK_OPEN_READ | BLK_OPEN_WRITE;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct block_device *bdev;
struct block2mtd_dev *dev;
char *name;
@ -279,16 +275,16 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size,
return NULL;
/* Get a handle on the device */
bdev_handle = bdev_open_by_path(devname, mode, dev, NULL);
if (IS_ERR(bdev_handle))
bdev_handle = mdtblock_early_get_bdev(devname, mode, timeout,
bdev_file = bdev_file_open_by_path(devname, mode, dev, NULL);
if (IS_ERR(bdev_file))
bdev_file = mdtblock_early_get_bdev(devname, mode, timeout,
dev);
if (IS_ERR(bdev_handle)) {
if (IS_ERR(bdev_file)) {
pr_err("error: cannot open device %s\n", devname);
goto err_free_block2mtd;
}
dev->bdev_handle = bdev_handle;
bdev = bdev_handle->bdev;
dev->bdev_file = bdev_file;
bdev = file_bdev(bdev_file);
if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) {
pr_err("attempting to use an MTD device as a block device\n");

16
drivers/nvme/target/io-cmd-bdev.c
View File

@ -50,10 +50,10 @@ void nvmet_bdev_set_limits(struct block_device *bdev, struct nvme_id_ns *id)
void nvmet_bdev_ns_disable(struct nvmet_ns *ns)
{
if (ns->bdev_handle) {
bdev_release(ns->bdev_handle);
if (ns->bdev_file) {
fput(ns->bdev_file);
ns->bdev = NULL;
ns->bdev_handle = NULL;
ns->bdev_file = NULL;
}
}
@ -85,18 +85,18 @@ int nvmet_bdev_ns_enable(struct nvmet_ns *ns)
if (ns->buffered_io)
return -ENOTBLK;
ns->bdev_handle = bdev_open_by_path(ns->device_path,
ns->bdev_file = bdev_file_open_by_path(ns->device_path,
BLK_OPEN_READ | BLK_OPEN_WRITE, NULL, NULL);
if (IS_ERR(ns->bdev_handle)) {
ret = PTR_ERR(ns->bdev_handle);
if (IS_ERR(ns->bdev_file)) {
ret = PTR_ERR(ns->bdev_file);
if (ret != -ENOTBLK) {
pr_err("failed to open block device %s: (%d)\n",
ns->device_path, ret);
}
ns->bdev_handle = NULL;
ns->bdev_file = NULL;
return ret;
}
ns->bdev = ns->bdev_handle->bdev;
ns->bdev = file_bdev(ns->bdev_file);
ns->size = bdev_nr_bytes(ns->bdev);
ns->blksize_shift = blksize_bits(bdev_logical_block_size(ns->bdev));

2
drivers/nvme/target/nvmet.h
View File

@ -58,7 +58,7 @@
struct nvmet_ns {
struct percpu_ref ref;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct block_device *bdev;
struct file *file;
bool readonly;

10
drivers/s390/block/dasd.c
View File

@ -412,7 +412,7 @@ dasd_state_ready_to_online(struct dasd_device * device)
KOBJ_CHANGE);
return 0;
}
disk_uevent(device->block->bdev_handle->bdev->bd_disk,
disk_uevent(file_bdev(device->block->bdev_file)->bd_disk,
KOBJ_CHANGE);
}
return 0;
@ -433,7 +433,7 @@ static int dasd_state_online_to_ready(struct dasd_device *device)
device->state = DASD_STATE_READY;
if (device->block && !(device->features & DASD_FEATURE_USERAW))
disk_uevent(device->block->bdev_handle->bdev->bd_disk,
disk_uevent(file_bdev(device->block->bdev_file)->bd_disk,
KOBJ_CHANGE);
return 0;
}
@ -3588,7 +3588,7 @@ int dasd_generic_set_offline(struct ccw_device *cdev)
* in the other openers.
*/
if (device->block) {
max_count = device->block->bdev_handle ? 0 : -1;
max_count = device->block->bdev_file ? 0 : -1;
open_count = atomic_read(&device->block->open_count);
if (open_count > max_count) {
if (open_count > 0)
@ -3634,8 +3634,8 @@ int dasd_generic_set_offline(struct ccw_device *cdev)
* so sync bdev first and then wait for our queues to become
* empty
*/
if (device->block && device->block->bdev_handle)
bdev_mark_dead(device->block->bdev_handle->bdev, false);
if (device->block && device->block->bdev_file)
bdev_mark_dead(file_bdev(device->block->bdev_file), false);
dasd_schedule_device_bh(device);
rc = wait_event_interruptible(shutdown_waitq,
_wait_for_empty_queues(device));

36
drivers/s390/block/dasd_genhd.c
View File

@ -127,15 +127,15 @@ void dasd_gendisk_free(struct dasd_block *block)
*/
int dasd_scan_partitions(struct dasd_block *block)
{
struct bdev_handle *bdev_handle;
struct file *bdev_file;
int rc;
bdev_handle = bdev_open_by_dev(disk_devt(block->gdp), BLK_OPEN_READ,
bdev_file = bdev_file_open_by_dev(disk_devt(block->gdp), BLK_OPEN_READ,
NULL, NULL);
if (IS_ERR(bdev_handle)) {
if (IS_ERR(bdev_file)) {
DBF_DEV_EVENT(DBF_ERR, block->base,
"scan partitions error, blkdev_get returned %ld",
PTR_ERR(bdev_handle));
PTR_ERR(bdev_file));
return -ENODEV;
}
@ -147,15 +147,15 @@ int dasd_scan_partitions(struct dasd_block *block)
"scan partitions error, rc %d", rc);
/*
* Since the matching bdev_release() call to the
* bdev_open_by_path() in this function is not called before
* Since the matching fput() call to the
* bdev_file_open_by_path() in this function is not called before
* dasd_destroy_partitions the offline open_count limit needs to be
* increased from 0 to 1. This is done by setting device->bdev_handle
* increased from 0 to 1. This is done by setting device->bdev_file
* (see dasd_generic_set_offline). As long as the partition detection
* is running no offline should be allowed. That is why the assignment
* to block->bdev_handle is done AFTER the BLKRRPART ioctl.
* to block->bdev_file is done AFTER the BLKRRPART ioctl.
*/
block->bdev_handle = bdev_handle;
block->bdev_file = bdev_file;
return 0;
}
@ -165,21 +165,21 @@ int dasd_scan_partitions(struct dasd_block *block)
*/
void dasd_destroy_partitions(struct dasd_block *block)
{
struct bdev_handle *bdev_handle;
struct file *bdev_file;
/*
* Get the bdev_handle pointer from the device structure and clear
* device->bdev_handle to lower the offline open_count limit again.
* Get the bdev_file pointer from the device structure and clear
* device->bdev_file to lower the offline open_count limit again.
*/
bdev_handle = block->bdev_handle;
block->bdev_handle = NULL;
bdev_file = block->bdev_file;
block->bdev_file = NULL;
mutex_lock(&bdev_handle->bdev->bd_disk->open_mutex);
bdev_disk_changed(bdev_handle->bdev->bd_disk, true);
mutex_unlock(&bdev_handle->bdev->bd_disk->open_mutex);
mutex_lock(&file_bdev(bdev_file)->bd_disk->open_mutex);
bdev_disk_changed(file_bdev(bdev_file)->bd_disk, true);
mutex_unlock(&file_bdev(bdev_file)->bd_disk->open_mutex);
/* Matching blkdev_put to the blkdev_get in dasd_scan_partitions. */
bdev_release(bdev_handle);
fput(bdev_file);
}
int dasd_gendisk_init(void)

2
drivers/s390/block/dasd_int.h
View File

@ -650,7 +650,7 @@ struct dasd_block {
struct gendisk *gdp;
spinlock_t request_queue_lock;
struct blk_mq_tag_set tag_set;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
atomic_t open_count;
unsigned long blocks; /* size of volume in blocks */

2
drivers/s390/block/dasd_ioctl.c
View File

@ -537,7 +537,7 @@ static int __dasd_ioctl_information(struct dasd_block *block,
* This must be hidden from user-space.
*/
dasd_info->open_count = atomic_read(&block->open_count);
if (!block->bdev_handle)
if (!block->bdev_file)
dasd_info->open_count++;
/*

18
drivers/target/target_core_iblock.c
View File

@ -91,7 +91,7 @@ static int iblock_configure_device(struct se_device *dev)
{
struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
struct request_queue *q;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct block_device *bd;
struct blk_integrity *bi;
blk_mode_t mode = BLK_OPEN_READ;
@ -117,14 +117,14 @@ static int iblock_configure_device(struct se_device *dev)
else
dev->dev_flags |= DF_READ_ONLY;
bdev_handle = bdev_open_by_path(ib_dev->ibd_udev_path, mode, ib_dev,
bdev_file = bdev_file_open_by_path(ib_dev->ibd_udev_path, mode, ib_dev,
NULL);
if (IS_ERR(bdev_handle)) {
ret = PTR_ERR(bdev_handle);
if (IS_ERR(bdev_file)) {
ret = PTR_ERR(bdev_file);
goto out_free_bioset;
}
ib_dev->ibd_bdev_handle = bdev_handle;
ib_dev->ibd_bd = bd = bdev_handle->bdev;
ib_dev->ibd_bdev_file = bdev_file;
ib_dev->ibd_bd = bd = file_bdev(bdev_file);
q = bdev_get_queue(bd);
@ -180,7 +180,7 @@ static int iblock_configure_device(struct se_device *dev)
return 0;
out_blkdev_put:
bdev_release(ib_dev->ibd_bdev_handle);
fput(ib_dev->ibd_bdev_file);
out_free_bioset:
bioset_exit(&ib_dev->ibd_bio_set);
out:
@ -205,8 +205,8 @@ static void iblock_destroy_device(struct se_device *dev)
{
struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
if (ib_dev->ibd_bdev_handle)
bdev_release(ib_dev->ibd_bdev_handle);
if (ib_dev->ibd_bdev_file)
fput(ib_dev->ibd_bdev_file);
bioset_exit(&ib_dev->ibd_bio_set);
}

2
drivers/target/target_core_iblock.h
View File

@ -32,7 +32,7 @@ struct iblock_dev {
u32 ibd_flags;
struct bio_set ibd_bio_set;
struct block_device *ibd_bd;
struct bdev_handle *ibd_bdev_handle;
struct file *ibd_bdev_file;
bool ibd_readonly;
struct iblock_dev_plug *ibd_plug;
} ____cacheline_aligned;

22
drivers/target/target_core_pscsi.c
View File

@ -352,7 +352,7 @@ static int pscsi_create_type_disk(struct se_device *dev, struct scsi_device *sd)
struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr;
struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
struct Scsi_Host *sh = sd->host;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
int ret;
if (scsi_device_get(sd)) {
@ -366,18 +366,18 @@ static int pscsi_create_type_disk(struct se_device *dev, struct scsi_device *sd)
* Claim exclusive struct block_device access to struct scsi_device
* for TYPE_DISK and TYPE_ZBC using supplied udev_path
*/
bdev_handle = bdev_open_by_path(dev->udev_path,
bdev_file = bdev_file_open_by_path(dev->udev_path,
BLK_OPEN_WRITE | BLK_OPEN_READ, pdv, NULL);
if (IS_ERR(bdev_handle)) {
if (IS_ERR(bdev_file)) {
pr_err("pSCSI: bdev_open_by_path() failed\n");
scsi_device_put(sd);
return PTR_ERR(bdev_handle);
return PTR_ERR(bdev_file);
}
pdv->pdv_bdev_handle = bdev_handle;
pdv->pdv_bdev_file = bdev_file;
ret = pscsi_add_device_to_list(dev, sd);
if (ret) {
bdev_release(bdev_handle);
fput(bdev_file);
scsi_device_put(sd);
return ret;
}
@ -564,9 +564,9 @@ static void pscsi_destroy_device(struct se_device *dev)
* from pscsi_create_type_disk()
*/
if ((sd->type == TYPE_DISK || sd->type == TYPE_ZBC) &&
pdv->pdv_bdev_handle) {
bdev_release(pdv->pdv_bdev_handle);
pdv->pdv_bdev_handle = NULL;
pdv->pdv_bdev_file) {
fput(pdv->pdv_bdev_file);
pdv->pdv_bdev_file = NULL;
}
/*
* For HBA mode PHV_LLD_SCSI_HOST_NO, release the reference
@ -997,8 +997,8 @@ static sector_t pscsi_get_blocks(struct se_device *dev)
{
struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
if (pdv->pdv_bdev_handle)
return bdev_nr_sectors(pdv->pdv_bdev_handle->bdev);
if (pdv->pdv_bdev_file)
return bdev_nr_sectors(file_bdev(pdv->pdv_bdev_file));
return 0;
}

2
drivers/target/target_core_pscsi.h
View File

@ -37,7 +37,7 @@ struct pscsi_dev_virt {
int pdv_channel_id;
int pdv_target_id;
int pdv_lun_id;
struct bdev_handle *pdv_bdev_handle;
struct file *pdv_bdev_file;
struct scsi_device *pdv_sd;
struct Scsi_Host *pdv_lld_host;
} ____cacheline_aligned;

20
fs/bcachefs/super-io.c
View File

@ -142,8 +142,8 @@ void bch2_sb_field_delete(struct bch_sb_handle *sb,
void bch2_free_super(struct bch_sb_handle *sb)
{
kfree(sb->bio);
if (!IS_ERR_OR_NULL(sb->bdev_handle))
bdev_release(sb->bdev_handle);
if (!IS_ERR_OR_NULL(sb->s_bdev_file))
fput(sb->s_bdev_file);
kfree(sb->holder);
kfree(sb->sb_name);
@ -704,22 +704,22 @@ retry:
if (!opt_get(*opts, nochanges))
sb->mode |= BLK_OPEN_WRITE;
sb->bdev_handle = bdev_open_by_path(path, sb->mode, sb->holder, &bch2_sb_handle_bdev_ops);
if (IS_ERR(sb->bdev_handle) &&
PTR_ERR(sb->bdev_handle) == -EACCES &&
sb->s_bdev_file = bdev_file_open_by_path(path, sb->mode, sb->holder, &bch2_sb_handle_bdev_ops);
if (IS_ERR(sb->s_bdev_file) &&
PTR_ERR(sb->s_bdev_file) == -EACCES &&
opt_get(*opts, read_only)) {
sb->mode &= ~BLK_OPEN_WRITE;
sb->bdev_handle = bdev_open_by_path(path, sb->mode, sb->holder, &bch2_sb_handle_bdev_ops);
if (!IS_ERR(sb->bdev_handle))
sb->s_bdev_file = bdev_file_open_by_path(path, sb->mode, sb->holder, &bch2_sb_handle_bdev_ops);
if (!IS_ERR(sb->s_bdev_file))
opt_set(*opts, nochanges, true);
}
if (IS_ERR(sb->bdev_handle)) {
ret = PTR_ERR(sb->bdev_handle);
if (IS_ERR(sb->s_bdev_file)) {
ret = PTR_ERR(sb->s_bdev_file);
goto err;
}
sb->bdev = sb->bdev_handle->bdev;
sb->bdev = file_bdev(sb->s_bdev_file);
ret = bch2_sb_realloc(sb, 0);
if (ret) {

2
fs/bcachefs/super_types.h
View File

@ -4,7 +4,7 @@
struct bch_sb_handle {
struct bch_sb *sb;
struct bdev_handle *bdev_handle;
struct file *s_bdev_file;
struct block_device *bdev;
char *sb_name;
struct bio *bio;

14
fs/btrfs/dev-replace.c
View File

@ -246,7 +246,7 @@ static int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
{
struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
struct btrfs_device *device;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct block_device *bdev;
u64 devid = BTRFS_DEV_REPLACE_DEVID;
int ret = 0;
@ -257,13 +257,13 @@ static int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
return -EINVAL;
}
bdev_handle = bdev_open_by_path(device_path, BLK_OPEN_WRITE,
bdev_file = bdev_file_open_by_path(device_path, BLK_OPEN_WRITE,
fs_info->bdev_holder, NULL);
if (IS_ERR(bdev_handle)) {
if (IS_ERR(bdev_file)) {
btrfs_err(fs_info, "target device %s is invalid!", device_path);
return PTR_ERR(bdev_handle);
return PTR_ERR(bdev_file);
}
bdev = bdev_handle->bdev;
bdev = file_bdev(bdev_file);
if (!btrfs_check_device_zone_type(fs_info, bdev)) {
btrfs_err(fs_info,
@ -314,7 +314,7 @@ static int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
device->commit_bytes_used = device->bytes_used;
device->fs_info = fs_info;
device->bdev = bdev;
device->bdev_handle = bdev_handle;
device->bdev_file = bdev_file;
set_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &device->dev_state);
set_bit(BTRFS_DEV_STATE_REPLACE_TGT, &device->dev_state);
device->dev_stats_valid = 1;
@ -335,7 +335,7 @@ static int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
return 0;
error:
bdev_release(bdev_handle);
fput(bdev_file);
return ret;
}

16
fs/btrfs/ioctl.c
View File

@ -2698,7 +2698,7 @@ static long btrfs_ioctl_rm_dev_v2(struct file *file, void __user *arg)
struct inode *inode = file_inode(file);
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ioctl_vol_args_v2 *vol_args;
struct bdev_handle *bdev_handle = NULL;
struct file *bdev_file = NULL;
int ret;
bool cancel = false;
@ -2735,7 +2735,7 @@ static long btrfs_ioctl_rm_dev_v2(struct file *file, void __user *arg)
goto err_drop;
/* Exclusive operation is now claimed */
ret = btrfs_rm_device(fs_info, &args, &bdev_handle);
ret = btrfs_rm_device(fs_info, &args, &bdev_file);
btrfs_exclop_finish(fs_info);
@ -2749,8 +2749,8 @@ static long btrfs_ioctl_rm_dev_v2(struct file *file, void __user *arg)
}
err_drop:
mnt_drop_write_file(file);
if (bdev_handle)
bdev_release(bdev_handle);
if (bdev_file)
fput(bdev_file);
out:
btrfs_put_dev_args_from_path(&args);
kfree(vol_args);
@ -2763,7 +2763,7 @@ static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg)
struct inode *inode = file_inode(file);
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ioctl_vol_args *vol_args;
struct bdev_handle *bdev_handle = NULL;
struct file *bdev_file = NULL;
int ret;
bool cancel = false;
@ -2790,15 +2790,15 @@ static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg)
ret = exclop_start_or_cancel_reloc(fs_info, BTRFS_EXCLOP_DEV_REMOVE,
cancel);
if (ret == 0) {
ret = btrfs_rm_device(fs_info, &args, &bdev_handle);
ret = btrfs_rm_device(fs_info, &args, &bdev_file);
if (!ret)
btrfs_info(fs_info, "disk deleted %s", vol_args->name);
btrfs_exclop_finish(fs_info);
}
mnt_drop_write_file(file);
if (bdev_handle)
bdev_release(bdev_handle);
if (bdev_file)
fput(bdev_file);
out:
btrfs_put_dev_args_from_path(&args);
kfree(vol_args);

92
fs/btrfs/volumes.c
View File

@ -468,39 +468,39 @@ static noinline struct btrfs_fs_devices *find_fsid(
static int
btrfs_get_bdev_and_sb(const char *device_path, blk_mode_t flags, void *holder,
int flush, struct bdev_handle **bdev_handle,
int flush, struct file **bdev_file,
struct btrfs_super_block **disk_super)
{
struct block_device *bdev;
int ret;
*bdev_handle = bdev_open_by_path(device_path, flags, holder, NULL);
*bdev_file = bdev_file_open_by_path(device_path, flags, holder, NULL);
if (IS_ERR(*bdev_handle)) {
ret = PTR_ERR(*bdev_handle);
if (IS_ERR(*bdev_file)) {
ret = PTR_ERR(*bdev_file);
goto error;
}
bdev = (*bdev_handle)->bdev;
bdev = file_bdev(*bdev_file);
if (flush)
sync_blockdev(bdev);
ret = set_blocksize(bdev, BTRFS_BDEV_BLOCKSIZE);
if (ret) {
bdev_release(*bdev_handle);
fput(*bdev_file);
goto error;
}
invalidate_bdev(bdev);
*disk_super = btrfs_read_dev_super(bdev);
if (IS_ERR(*disk_super)) {
ret = PTR_ERR(*disk_super);
bdev_release(*bdev_handle);
fput(*bdev_file);
goto error;
}
return 0;
error:
*bdev_handle = NULL;
*bdev_file = NULL;
return ret;
}
@ -643,7 +643,7 @@ static int btrfs_open_one_device(struct btrfs_fs_devices *fs_devices,
struct btrfs_device *device, blk_mode_t flags,
void *holder)
{
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct btrfs_super_block *disk_super;
u64 devid;
int ret;
@ -654,7 +654,7 @@ static int btrfs_open_one_device(struct btrfs_fs_devices *fs_devices,
return -EINVAL;
ret = btrfs_get_bdev_and_sb(device->name->str, flags, holder, 1,
&bdev_handle, &disk_super);
&bdev_file, &disk_super);
if (ret)
return ret;
@ -678,20 +678,20 @@ static int btrfs_open_one_device(struct btrfs_fs_devices *fs_devices,
clear_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state);
fs_devices->seeding = true;
} else {
if (bdev_read_only(bdev_handle->bdev))
if (bdev_read_only(file_bdev(bdev_file)))
clear_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state);
else
set_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state);
}
if (!bdev_nonrot(bdev_handle->bdev))
if (!bdev_nonrot(file_bdev(bdev_file)))
fs_devices->rotating = true;
if (bdev_max_discard_sectors(bdev_handle->bdev))
if (bdev_max_discard_sectors(file_bdev(bdev_file)))
fs_devices->discardable = true;
device->bdev_handle = bdev_handle;
device->bdev = bdev_handle->bdev;
device->bdev_file = bdev_file;
device->bdev = file_bdev(bdev_file);
clear_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &device->dev_state);
fs_devices->open_devices++;
@ -706,7 +706,7 @@ static int btrfs_open_one_device(struct btrfs_fs_devices *fs_devices,
error_free_page:
btrfs_release_disk_super(disk_super);
bdev_release(bdev_handle);
fput(bdev_file);
return -EINVAL;
}
@ -1015,10 +1015,10 @@ static void __btrfs_free_extra_devids(struct btrfs_fs_devices *fs_devices,
if (device->devid == BTRFS_DEV_REPLACE_DEVID)
continue;
if (device->bdev_handle) {
bdev_release(device->bdev_handle);
if (device->bdev_file) {
fput(device->bdev_file);
device->bdev = NULL;
device->bdev_handle = NULL;
device->bdev_file = NULL;
fs_devices->open_devices--;
}
if (test_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state)) {
@ -1063,7 +1063,7 @@ static void btrfs_close_bdev(struct btrfs_device *device)
invalidate_bdev(device->bdev);
}
bdev_release(device->bdev_handle);
fput(device->bdev_file);
}
static void btrfs_close_one_device(struct btrfs_device *device)
@ -1316,7 +1316,7 @@ struct btrfs_device *btrfs_scan_one_device(const char *path, blk_mode_t flags,
struct btrfs_super_block *disk_super;
bool new_device_added = false;
struct btrfs_device *device = NULL;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
u64 bytenr, bytenr_orig;
int ret;
@ -1339,18 +1339,18 @@ struct btrfs_device *btrfs_scan_one_device(const char *path, blk_mode_t flags,
* values temporarily, as the device paths of the fsid are the only
* required information for assembling the volume.
*/
bdev_handle = bdev_open_by_path(path, flags, NULL, NULL);
if (IS_ERR(bdev_handle))
return ERR_CAST(bdev_handle);
bdev_file = bdev_file_open_by_path(path, flags, NULL, NULL);
if (IS_ERR(bdev_file))
return ERR_CAST(bdev_file);
bytenr_orig = btrfs_sb_offset(0);
ret = btrfs_sb_log_location_bdev(bdev_handle->bdev, 0, READ, &bytenr);
ret = btrfs_sb_log_location_bdev(file_bdev(bdev_file), 0, READ, &bytenr);
if (ret) {
device = ERR_PTR(ret);
goto error_bdev_put;
}
disk_super = btrfs_read_disk_super(bdev_handle->bdev, bytenr,
disk_super = btrfs_read_disk_super(file_bdev(bdev_file), bytenr,
bytenr_orig);
if (IS_ERR(disk_super)) {
device = ERR_CAST(disk_super);
@ -1381,7 +1381,7 @@ free_disk_super:
btrfs_release_disk_super(disk_super);
error_bdev_put:
bdev_release(bdev_handle);
fput(bdev_file);
return device;
}
@ -2057,7 +2057,7 @@ void btrfs_scratch_superblocks(struct btrfs_fs_info *fs_info,
int btrfs_rm_device(struct btrfs_fs_info *fs_info,
struct btrfs_dev_lookup_args *args,
struct bdev_handle **bdev_handle)
struct file **bdev_file)
{
struct btrfs_trans_handle *trans;
struct btrfs_device *device;
@ -2166,7 +2166,7 @@ int btrfs_rm_device(struct btrfs_fs_info *fs_info,
btrfs_assign_next_active_device(device, NULL);
if (device->bdev_handle) {
if (device->bdev_file) {
cur_devices->open_devices--;
/* remove sysfs entry */
btrfs_sysfs_remove_device(device);
@ -2182,9 +2182,9 @@ int btrfs_rm_device(struct btrfs_fs_info *fs_info,
* free the device.
*
* We cannot call btrfs_close_bdev() here because we're holding the sb
* write lock, and bdev_release() will pull in the ->open_mutex on
* the block device and it's dependencies. Instead just flush the
* device and let the caller do the final bdev_release.
* write lock, and fput() on the block device will pull in the
* ->open_mutex on the block device and it's dependencies. Instead
* just flush the device and let the caller do the final bdev_release.
*/
if (test_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state)) {
btrfs_scratch_superblocks(fs_info, device->bdev,
@ -2195,7 +2195,7 @@ int btrfs_rm_device(struct btrfs_fs_info *fs_info,
}
}
*bdev_handle = device->bdev_handle;
*bdev_file = device->bdev_file;
synchronize_rcu();
btrfs_free_device(device);
@ -2332,7 +2332,7 @@ int btrfs_get_dev_args_from_path(struct btrfs_fs_info *fs_info,
const char *path)
{
struct btrfs_super_block *disk_super;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
int ret;
if (!path || !path[0])
@ -2350,7 +2350,7 @@ int btrfs_get_dev_args_from_path(struct btrfs_fs_info *fs_info,
}
ret = btrfs_get_bdev_and_sb(path, BLK_OPEN_READ, NULL, 0,
&bdev_handle, &disk_super);
&bdev_file, &disk_super);
if (ret) {
btrfs_put_dev_args_from_path(args);
return ret;
@ -2363,7 +2363,7 @@ int btrfs_get_dev_args_from_path(struct btrfs_fs_info *fs_info,
else
memcpy(args->fsid, disk_super->fsid, BTRFS_FSID_SIZE);
btrfs_release_disk_super(disk_super);
bdev_release(bdev_handle);
fput(bdev_file);
return 0;
}
@ -2583,7 +2583,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
struct btrfs_root *root = fs_info->dev_root;
struct btrfs_trans_handle *trans;
struct btrfs_device *device;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct super_block *sb = fs_info->sb;
struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
struct btrfs_fs_devices *seed_devices = NULL;
@ -2596,12 +2596,12 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
if (sb_rdonly(sb) && !fs_devices->seeding)
return -EROFS;
bdev_handle = bdev_open_by_path(device_path, BLK_OPEN_WRITE,
bdev_file = bdev_file_open_by_path(device_path, BLK_OPEN_WRITE,
fs_info->bdev_holder, NULL);
if (IS_ERR(bdev_handle))
return PTR_ERR(bdev_handle);
if (IS_ERR(bdev_file))
return PTR_ERR(bdev_file);
if (!btrfs_check_device_zone_type(fs_info, bdev_handle->bdev)) {
if (!btrfs_check_device_zone_type(fs_info, file_bdev(bdev_file))) {
ret = -EINVAL;
goto error;
}
@ -2613,11 +2613,11 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
locked = true;
}
sync_blockdev(bdev_handle->bdev);
sync_blockdev(file_bdev(bdev_file));
rcu_read_lock();
list_for_each_entry_rcu(device, &fs_devices->devices, dev_list) {
if (device->bdev == bdev_handle->bdev) {
if (device->bdev == file_bdev(bdev_file)) {
ret = -EEXIST;
rcu_read_unlock();
goto error;
@ -2633,8 +2633,8 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
}
device->fs_info = fs_info;
device->bdev_handle = bdev_handle;
device->bdev = bdev_handle->bdev;
device->bdev_file = bdev_file;
device->bdev = file_bdev(bdev_file);
ret = lookup_bdev(device_path, &device->devt);
if (ret)
goto error_free_device;
@ -2817,7 +2817,7 @@ error_free_zone:
error_free_device:
btrfs_free_device(device);
error:
bdev_release(bdev_handle);
fput(bdev_file);
if (locked) {
mutex_unlock(&uuid_mutex);
up_write(&sb->s_umount);

4
fs/btrfs/volumes.h
View File

@ -90,7 +90,7 @@ struct btrfs_device {
u64 generation;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct block_device *bdev;
struct btrfs_zoned_device_info *zone_info;
@ -661,7 +661,7 @@ struct btrfs_device *btrfs_alloc_device(struct btrfs_fs_info *fs_info,
void btrfs_put_dev_args_from_path(struct btrfs_dev_lookup_args *args);
int btrfs_rm_device(struct btrfs_fs_info *fs_info,
struct btrfs_dev_lookup_args *args,
struct bdev_handle **bdev_handle);
struct file **bdev_file);
void __exit btrfs_cleanup_fs_uuids(void);
int btrfs_num_copies(struct btrfs_fs_info *fs_info, u64 logical, u64 len);
int btrfs_grow_device(struct btrfs_trans_handle *trans,

2
fs/cramfs/inode.c
View File

@ -495,7 +495,7 @@ static void cramfs_kill_sb(struct super_block *sb)
sb->s_mtd = NULL;
} else if (IS_ENABLED(CONFIG_CRAMFS_BLOCKDEV) && sb->s_bdev) {
sync_blockdev(sb->s_bdev);
bdev_release(sb->s_bdev_handle);
fput(sb->s_bdev_file);
}
kfree(sbi);
}

6
fs/erofs/data.c
View File

@ -220,7 +220,7 @@ int erofs_map_dev(struct super_block *sb, struct erofs_map_dev *map)
up_read(&devs->rwsem);
return 0;
}
map->m_bdev = dif->bdev_handle ? dif->bdev_handle->bdev : NULL;
map->m_bdev = dif->bdev_file ? file_bdev(dif->bdev_file) : NULL;
map->m_daxdev = dif->dax_dev;
map->m_dax_part_off = dif->dax_part_off;
map->m_fscache = dif->fscache;
@ -238,8 +238,8 @@ int erofs_map_dev(struct super_block *sb, struct erofs_map_dev *map)
if (map->m_pa >= startoff &&
map->m_pa < startoff + length) {
map->m_pa -= startoff;
map->m_bdev = dif->bdev_handle ?
dif->bdev_handle->bdev : NULL;
map->m_bdev = dif->bdev_file ?
file_bdev(dif->bdev_file) : NULL;
map->m_daxdev = dif->dax_dev;
map->m_dax_part_off = dif->dax_part_off;
map->m_fscache = dif->fscache;

2
fs/erofs/internal.h
View File

@ -49,7 +49,7 @@ typedef u32 erofs_blk_t;
struct erofs_device_info {
char *path;
struct erofs_fscache *fscache;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct dax_device *dax_dev;
u64 dax_part_off;

16
fs/erofs/super.c
View File

@ -177,7 +177,7 @@ static int erofs_init_device(struct erofs_buf *buf, struct super_block *sb,
struct erofs_sb_info *sbi = EROFS_SB(sb);
struct erofs_fscache *fscache;
struct erofs_deviceslot *dis;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
void *ptr;
ptr = erofs_read_metabuf(buf, sb, erofs_blknr(sb, *pos), EROFS_KMAP);
@ -201,12 +201,12 @@ static int erofs_init_device(struct erofs_buf *buf, struct super_block *sb,
return PTR_ERR(fscache);
dif->fscache = fscache;
} else if (!sbi->devs->flatdev) {
bdev_handle = bdev_open_by_path(dif->path, BLK_OPEN_READ,
bdev_file = bdev_file_open_by_path(dif->path, BLK_OPEN_READ,
sb->s_type, NULL);
if (IS_ERR(bdev_handle))
return PTR_ERR(bdev_handle);
dif->bdev_handle = bdev_handle;
dif->dax_dev = fs_dax_get_by_bdev(bdev_handle->bdev,
if (IS_ERR(bdev_file))
return PTR_ERR(bdev_file);
dif->bdev_file = bdev_file;
dif->dax_dev = fs_dax_get_by_bdev(file_bdev(bdev_file),
&dif->dax_part_off, NULL, NULL);
}
@ -754,8 +754,8 @@ static int erofs_release_device_info(int id, void *ptr, void *data)
struct erofs_device_info *dif = ptr;
fs_put_dax(dif->dax_dev, NULL);
if (dif->bdev_handle)
bdev_release(dif->bdev_handle);
if (dif->bdev_file)
fput(dif->bdev_file);
erofs_fscache_unregister_cookie(dif->fscache);
dif->fscache = NULL;
kfree(dif->path);

2
fs/ext4/ext4.h
View File

@ -1550,7 +1550,7 @@ struct ext4_sb_info {
unsigned long s_commit_interval;
u32 s_max_batch_time;
u32 s_min_batch_time;
struct bdev_handle *s_journal_bdev_handle;
struct file *s_journal_bdev_file;
#ifdef CONFIG_QUOTA
/* Names of quota files with journalled quota */
char __rcu *s_qf_names[EXT4_MAXQUOTAS];

8
fs/ext4/fsmap.c
View File

@ -576,9 +576,9 @@ static bool ext4_getfsmap_is_valid_device(struct super_block *sb,
if (fm->fmr_device == 0 || fm->fmr_device == UINT_MAX ||
fm->fmr_device == new_encode_dev(sb->s_bdev->bd_dev))
return true;
if (EXT4_SB(sb)->s_journal_bdev_handle &&
if (EXT4_SB(sb)->s_journal_bdev_file &&
fm->fmr_device ==
new_encode_dev(EXT4_SB(sb)->s_journal_bdev_handle->bdev->bd_dev))
new_encode_dev(file_bdev(EXT4_SB(sb)->s_journal_bdev_file)->bd_dev))
return true;
return false;
}
@ -648,9 +648,9 @@ int ext4_getfsmap(struct super_block *sb, struct ext4_fsmap_head *head,
memset(handlers, 0, sizeof(handlers));
handlers[0].gfd_dev = new_encode_dev(sb->s_bdev->bd_dev);
handlers[0].gfd_fn = ext4_getfsmap_datadev;
if (EXT4_SB(sb)->s_journal_bdev_handle) {
if (EXT4_SB(sb)->s_journal_bdev_file) {
handlers[1].gfd_dev = new_encode_dev(
EXT4_SB(sb)->s_journal_bdev_handle->bdev->bd_dev);
file_bdev(EXT4_SB(sb)->s_journal_bdev_file)->bd_dev);
handlers[1].gfd_fn = ext4_getfsmap_logdev;
}

52
fs/ext4/super.c
View File

@ -1359,14 +1359,14 @@ static void ext4_put_super(struct super_block *sb)
sync_blockdev(sb->s_bdev);
invalidate_bdev(sb->s_bdev);
if (sbi->s_journal_bdev_handle) {
if (sbi->s_journal_bdev_file) {
/*
* Invalidate the journal device's buffers. We don't want them
* floating about in memory - the physical journal device may
* hotswapped, and it breaks the `ro-after' testing code.
*/
sync_blockdev(sbi->s_journal_bdev_handle->bdev);
invalidate_bdev(sbi->s_journal_bdev_handle->bdev);
sync_blockdev(file_bdev(sbi->s_journal_bdev_file));
invalidate_bdev(file_bdev(sbi->s_journal_bdev_file));
}
ext4_xattr_destroy_cache(sbi->s_ea_inode_cache);
@ -4233,7 +4233,7 @@ int ext4_calculate_overhead(struct super_block *sb)
* Add the internal journal blocks whether the journal has been
* loaded or not
*/
if (sbi->s_journal && !sbi->s_journal_bdev_handle)
if (sbi->s_journal && !sbi->s_journal_bdev_file)
overhead += EXT4_NUM_B2C(sbi, sbi->s_journal->j_total_len);
else if (ext4_has_feature_journal(sb) && !sbi->s_journal && j_inum) {
/* j_inum for internal journal is non-zero */
@ -5671,9 +5671,9 @@ failed_mount:
#endif
fscrypt_free_dummy_policy(&sbi->s_dummy_enc_policy);
brelse(sbi->s_sbh);
if (sbi->s_journal_bdev_handle) {
invalidate_bdev(sbi->s_journal_bdev_handle->bdev);
bdev_release(sbi->s_journal_bdev_handle);
if (sbi->s_journal_bdev_file) {
invalidate_bdev(file_bdev(sbi->s_journal_bdev_file));
fput(sbi->s_journal_bdev_file);
}
out_fail:
invalidate_bdev(sb->s_bdev);
@ -5843,30 +5843,30 @@ static journal_t *ext4_open_inode_journal(struct super_block *sb,
return journal;
}
static struct bdev_handle *ext4_get_journal_blkdev(struct super_block *sb,
static struct file *ext4_get_journal_blkdev(struct super_block *sb,
dev_t j_dev, ext4_fsblk_t *j_start,
ext4_fsblk_t *j_len)
{
struct buffer_head *bh;
struct block_device *bdev;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
int hblock, blocksize;
ext4_fsblk_t sb_block;
unsigned long offset;
struct ext4_super_block *es;
int errno;
bdev_handle = bdev_open_by_dev(j_dev,
bdev_file = bdev_file_open_by_dev(j_dev,
BLK_OPEN_READ | BLK_OPEN_WRITE | BLK_OPEN_RESTRICT_WRITES,
sb, &fs_holder_ops);
if (IS_ERR(bdev_handle)) {
if (IS_ERR(bdev_file)) {
ext4_msg(sb, KERN_ERR,
"failed to open journal device unknown-block(%u,%u) %ld",
MAJOR(j_dev), MINOR(j_dev), PTR_ERR(bdev_handle));
return bdev_handle;
MAJOR(j_dev), MINOR(j_dev), PTR_ERR(bdev_file));
return bdev_file;
}
bdev = bdev_handle->bdev;
bdev = file_bdev(bdev_file);
blocksize = sb->s_blocksize;
hblock = bdev_logical_block_size(bdev);
if (blocksize < hblock) {
@ -5913,12 +5913,12 @@ static struct bdev_handle *ext4_get_journal_blkdev(struct super_block *sb,
*j_start = sb_block + 1;
*j_len = ext4_blocks_count(es);
brelse(bh);
return bdev_handle;
return bdev_file;
out_bh:
brelse(bh);
out_bdev:
bdev_release(bdev_handle);
fput(bdev_file);
return ERR_PTR(errno);
}
@ -5928,14 +5928,14 @@ static journal_t *ext4_open_dev_journal(struct super_block *sb,
journal_t *journal;
ext4_fsblk_t j_start;
ext4_fsblk_t j_len;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
int errno = 0;
bdev_handle = ext4_get_journal_blkdev(sb, j_dev, &j_start, &j_len);
if (IS_ERR(bdev_handle))
return ERR_CAST(bdev_handle);
bdev_file = ext4_get_journal_blkdev(sb, j_dev, &j_start, &j_len);
if (IS_ERR(bdev_file))
return ERR_CAST(bdev_file);
journal = jbd2_journal_init_dev(bdev_handle->bdev, sb->s_bdev, j_start,
journal = jbd2_journal_init_dev(file_bdev(bdev_file), sb->s_bdev, j_start,
j_len, sb->s_blocksize);
if (IS_ERR(journal)) {
ext4_msg(sb, KERN_ERR, "failed to create device journal");
@ -5950,14 +5950,14 @@ static journal_t *ext4_open_dev_journal(struct super_block *sb,
goto out_journal;
}
journal->j_private = sb;
EXT4_SB(sb)->s_journal_bdev_handle = bdev_handle;
EXT4_SB(sb)->s_journal_bdev_file = bdev_file;
ext4_init_journal_params(sb, journal);
return journal;
out_journal:
jbd2_journal_destroy(journal);
out_bdev:
bdev_release(bdev_handle);
fput(bdev_file);
return ERR_PTR(errno);
}
@ -7315,12 +7315,12 @@ static inline int ext3_feature_set_ok(struct super_block *sb)
static void ext4_kill_sb(struct super_block *sb)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
struct bdev_handle *handle = sbi ? sbi->s_journal_bdev_handle : NULL;
struct file *bdev_file = sbi ? sbi->s_journal_bdev_file : NULL;
kill_block_super(sb);
if (handle)
bdev_release(handle);
if (bdev_file)
fput(bdev_file);
}
static struct file_system_type ext4_fs_type = {

2
fs/f2fs/f2fs.h
View File

@ -1240,7 +1240,7 @@ struct f2fs_bio_info {
#define FDEV(i) (sbi->devs[i])
#define RDEV(i) (raw_super->devs[i])
struct f2fs_dev_info {
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct block_device *bdev;
char path[MAX_PATH_LEN];
unsigned int total_segments;

12
fs/f2fs/super.c
View File

@ -1605,7 +1605,7 @@ static void destroy_device_list(struct f2fs_sb_info *sbi)
for (i = 0; i < sbi->s_ndevs; i++) {
if (i > 0)
bdev_release(FDEV(i).bdev_handle);
fput(FDEV(i).bdev_file);
#ifdef CONFIG_BLK_DEV_ZONED
kvfree(FDEV(i).blkz_seq);
#endif
@ -4247,7 +4247,7 @@ static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
for (i = 0; i < max_devices; i++) {
if (i == 0)
FDEV(0).bdev_handle = sbi->sb->s_bdev_handle;
FDEV(0).bdev_file = sbi->sb->s_bdev_file;
else if (!RDEV(i).path[0])
break;
@ -4267,14 +4267,14 @@ static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
FDEV(i).end_blk = FDEV(i).start_blk +
(FDEV(i).total_segments <<
sbi->log_blocks_per_seg) - 1;
FDEV(i).bdev_handle = bdev_open_by_path(
FDEV(i).bdev_file = bdev_file_open_by_path(
FDEV(i).path, mode, sbi->sb, NULL);
}
}
if (IS_ERR(FDEV(i).bdev_handle))
return PTR_ERR(FDEV(i).bdev_handle);
if (IS_ERR(FDEV(i).bdev_file))
return PTR_ERR(FDEV(i).bdev_file);
FDEV(i).bdev = FDEV(i).bdev_handle->bdev;
FDEV(i).bdev = file_bdev(FDEV(i).bdev_file);
/* to release errored devices */
sbi->s_ndevs = i + 1;

83
fs/file_table.c
View File

@ -276,21 +276,15 @@ struct file *alloc_empty_backing_file(int flags, const struct cred *cred)
}
/**
* alloc_file - allocate and initialize a 'struct file'
* file_init_path - initialize a 'struct file' based on path
*
* @file: the file to set up
* @path: the (dentry, vfsmount) pair for the new file
* @flags: O_... flags with which the new file will be opened
* @fop: the 'struct file_operations' for the new file
*/
static struct file *alloc_file(const struct path *path, int flags,
const struct file_operations *fop)
static void file_init_path(struct file *file, const struct path *path,
const struct file_operations *fop)
{
struct file *file;
file = alloc_empty_file(flags, current_cred());
if (IS_ERR(file))
return file;
file->f_path = *path;
file->f_inode = path->dentry->d_inode;
file->f_mapping = path->dentry->d_inode->i_mapping;
@ -309,22 +303,51 @@ static struct file *alloc_file(const struct path *path, int flags,
file->f_op = fop;
if ((file->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
i_readcount_inc(path->dentry->d_inode);
}
/**
* alloc_file - allocate and initialize a 'struct file'
*
* @path: the (dentry, vfsmount) pair for the new file
* @flags: O_... flags with which the new file will be opened
* @fop: the 'struct file_operations' for the new file
*/
static struct file *alloc_file(const struct path *path, int flags,
const struct file_operations *fop)
{
struct file *file;
file = alloc_empty_file(flags, current_cred());
if (!IS_ERR(file))
file_init_path(file, path, fop);
return file;
}
struct file *alloc_file_pseudo(struct inode *inode, struct vfsmount *mnt,
const char *name, int flags,
const struct file_operations *fops)
static inline int alloc_path_pseudo(const char *name, struct inode *inode,
struct vfsmount *mnt, struct path *path)
{
struct qstr this = QSTR_INIT(name, strlen(name));
path->dentry = d_alloc_pseudo(mnt->mnt_sb, &this);
if (!path->dentry)
return -ENOMEM;
path->mnt = mntget(mnt);
d_instantiate(path->dentry, inode);
return 0;
}
struct file *alloc_file_pseudo(struct inode *inode, struct vfsmount *mnt,
const char *name, int flags,
const struct file_operations *fops)
{
int ret;
struct path path;
struct file *file;
path.dentry = d_alloc_pseudo(mnt->mnt_sb, &this);
if (!path.dentry)
return ERR_PTR(-ENOMEM);
path.mnt = mntget(mnt);
d_instantiate(path.dentry, inode);
ret = alloc_path_pseudo(name, inode, mnt, &path);
if (ret)
return ERR_PTR(ret);
file = alloc_file(&path, flags, fops);
if (IS_ERR(file)) {
ihold(inode);
@ -334,6 +357,30 @@ struct file *alloc_file_pseudo(struct inode *inode, struct vfsmount *mnt,
}
EXPORT_SYMBOL(alloc_file_pseudo);
struct file *alloc_file_pseudo_noaccount(struct inode *inode,
struct vfsmount *mnt, const char *name,
int flags,
const struct file_operations *fops)
{
int ret;
struct path path;
struct file *file;
ret = alloc_path_pseudo(name, inode, mnt, &path);
if (ret)
return ERR_PTR(ret);
file = alloc_empty_file_noaccount(flags, current_cred());
if (IS_ERR(file)) {
ihold(inode);
path_put(&path);
return file;
}
file_init_path(file, &path, fops);
return file;
}
EXPORT_SYMBOL_GPL(alloc_file_pseudo_noaccount);
struct file *alloc_file_clone(struct file *base, int flags,
const struct file_operations *fops)
{

26
fs/jfs/jfs_logmgr.c
View File

@ -1058,7 +1058,7 @@ void jfs_syncpt(struct jfs_log *log, int hard_sync)
int lmLogOpen(struct super_block *sb)
{
int rc;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct jfs_log *log;
struct jfs_sb_info *sbi = JFS_SBI(sb);
@ -1070,7 +1070,7 @@ int lmLogOpen(struct super_block *sb)
mutex_lock(&jfs_log_mutex);
list_for_each_entry(log, &jfs_external_logs, journal_list) {
if (log->bdev_handle->bdev->bd_dev == sbi->logdev) {
if (file_bdev(log->bdev_file)->bd_dev == sbi->logdev) {
if (!uuid_equal(&log->uuid, &sbi->loguuid)) {
jfs_warn("wrong uuid on JFS journal");
mutex_unlock(&jfs_log_mutex);
@ -1100,14 +1100,14 @@ int lmLogOpen(struct super_block *sb)
* file systems to log may have n-to-1 relationship;
*/
bdev_handle = bdev_open_by_dev(sbi->logdev,
bdev_file = bdev_file_open_by_dev(sbi->logdev,
BLK_OPEN_READ | BLK_OPEN_WRITE, log, NULL);
if (IS_ERR(bdev_handle)) {
rc = PTR_ERR(bdev_handle);
if (IS_ERR(bdev_file)) {
rc = PTR_ERR(bdev_file);
goto free;
}
log->bdev_handle = bdev_handle;
log->bdev_file = bdev_file;
uuid_copy(&log->uuid, &sbi->loguuid);
/*
@ -1141,7 +1141,7 @@ journal_found:
lbmLogShutdown(log);
close: /* close external log device */
bdev_release(bdev_handle);
fput(bdev_file);
free: /* free log descriptor */
mutex_unlock(&jfs_log_mutex);
@ -1162,7 +1162,7 @@ static int open_inline_log(struct super_block *sb)
init_waitqueue_head(&log->syncwait);
set_bit(log_INLINELOG, &log->flag);
log->bdev_handle = sb->s_bdev_handle;
log->bdev_file = sb->s_bdev_file;
log->base = addressPXD(&JFS_SBI(sb)->logpxd);
log->size = lengthPXD(&JFS_SBI(sb)->logpxd) >>
(L2LOGPSIZE - sb->s_blocksize_bits);
@ -1436,7 +1436,7 @@ int lmLogClose(struct super_block *sb)
{
struct jfs_sb_info *sbi = JFS_SBI(sb);
struct jfs_log *log = sbi->log;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
int rc = 0;
jfs_info("lmLogClose: log:0x%p", log);
@ -1482,10 +1482,10 @@ int lmLogClose(struct super_block *sb)
* external log as separate logical volume
*/
list_del(&log->journal_list);
bdev_handle = log->bdev_handle;
bdev_file = log->bdev_file;
rc = lmLogShutdown(log);
bdev_release(bdev_handle);
fput(bdev_file);
kfree(log);
@ -1972,7 +1972,7 @@ static int lbmRead(struct jfs_log * log, int pn, struct lbuf ** bpp)
bp->l_flag |= lbmREAD;
bio = bio_alloc(log->bdev_handle->bdev, 1, REQ_OP_READ, GFP_NOFS);
bio = bio_alloc(file_bdev(log->bdev_file), 1, REQ_OP_READ, GFP_NOFS);
bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);
__bio_add_page(bio, bp->l_page, LOGPSIZE, bp->l_offset);
BUG_ON(bio->bi_iter.bi_size != LOGPSIZE);
@ -2115,7 +2115,7 @@ static void lbmStartIO(struct lbuf * bp)
jfs_info("lbmStartIO");
if (!log->no_integrity)
bdev = log->bdev_handle->bdev;
bdev = file_bdev(log->bdev_file);
bio = bio_alloc(bdev, 1, REQ_OP_WRITE | REQ_SYNC,
GFP_NOFS);

2
fs/jfs/jfs_logmgr.h
View File

@ -356,7 +356,7 @@ struct jfs_log {
* before writing syncpt.
*/
struct list_head journal_list; /* Global list */
struct bdev_handle *bdev_handle; /* 4: log lv pointer */
struct file *bdev_file; /* 4: log lv pointer */
int serial; /* 4: log mount serial number */
s64 base; /* @8: log extent address (inline log ) */

2
fs/jfs/jfs_mount.c
View File

@ -431,7 +431,7 @@ int updateSuper(struct super_block *sb, uint state)
if (state == FM_MOUNT) {
/* record log's dev_t and mount serial number */
j_sb->s_logdev = cpu_to_le32(
new_encode_dev(sbi->log->bdev_handle->bdev->bd_dev));
new_encode_dev(file_bdev(sbi->log->bdev_file)->bd_dev));
j_sb->s_logserial = cpu_to_le32(sbi->log->serial);
} else if (state == FM_CLEAN) {
/*

2
fs/nfs/blocklayout/blocklayout.h
View File

@ -108,7 +108,7 @@ struct pnfs_block_dev {
struct pnfs_block_dev *children;
u64 chunk_size;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
u64 disk_offset;
u64 pr_key;

66
fs/nfs/blocklayout/dev.c
View File

@ -25,17 +25,17 @@ bl_free_device(struct pnfs_block_dev *dev)
} else {
if (dev->pr_registered) {
const struct pr_ops *ops =
dev->bdev_handle->bdev->bd_disk->fops->pr_ops;
file_bdev(dev->bdev_file)->bd_disk->fops->pr_ops;
int error;
error = ops->pr_register(dev->bdev_handle->bdev,
error = ops->pr_register(file_bdev(dev->bdev_file),
dev->pr_key, 0, false);
if (error)
pr_err("failed to unregister PR key.\n");
}
if (dev->bdev_handle)
bdev_release(dev->bdev_handle);
if (dev->bdev_file)
fput(dev->bdev_file);
}
}
@ -169,7 +169,7 @@ static bool bl_map_simple(struct pnfs_block_dev *dev, u64 offset,
map->start = dev->start;
map->len = dev->len;
map->disk_offset = dev->disk_offset;
map->bdev = dev->bdev_handle->bdev;
map->bdev = file_bdev(dev->bdev_file);
return true;
}
@ -236,26 +236,26 @@ bl_parse_simple(struct nfs_server *server, struct pnfs_block_dev *d,
struct pnfs_block_volume *volumes, int idx, gfp_t gfp_mask)
{
struct pnfs_block_volume *v = &volumes[idx];
struct bdev_handle *bdev_handle;
struct file *bdev_file;
dev_t dev;
dev = bl_resolve_deviceid(server, v, gfp_mask);
if (!dev)
return -EIO;
bdev_handle = bdev_open_by_dev(dev, BLK_OPEN_READ | BLK_OPEN_WRITE,
bdev_file = bdev_file_open_by_dev(dev, BLK_OPEN_READ | BLK_OPEN_WRITE,
NULL, NULL);
if (IS_ERR(bdev_handle)) {
if (IS_ERR(bdev_file)) {
printk(KERN_WARNING "pNFS: failed to open device %d:%d (%ld)\n",
MAJOR(dev), MINOR(dev), PTR_ERR(bdev_handle));
return PTR_ERR(bdev_handle);
MAJOR(dev), MINOR(dev), PTR_ERR(bdev_file));
return PTR_ERR(bdev_file);
}
d->bdev_handle = bdev_handle;
d->len = bdev_nr_bytes(bdev_handle->bdev);
d->bdev_file = bdev_file;
d->len = bdev_nr_bytes(file_bdev(bdev_file));
d->map = bl_map_simple;
printk(KERN_INFO "pNFS: using block device %s\n",
bdev_handle->bdev->bd_disk->disk_name);
file_bdev(bdev_file)->bd_disk->disk_name);
return 0;
}
@ -300,10 +300,10 @@ bl_validate_designator(struct pnfs_block_volume *v)
}
}
static struct bdev_handle *
static struct file *
bl_open_path(struct pnfs_block_volume *v, const char *prefix)
{
struct bdev_handle *bdev_handle;
struct file *bdev_file;
const char *devname;
devname = kasprintf(GFP_KERNEL, "/dev/disk/by-id/%s%*phN",
@ -311,15 +311,15 @@ bl_open_path(struct pnfs_block_volume *v, const char *prefix)
if (!devname)
return ERR_PTR(-ENOMEM);
bdev_handle = bdev_open_by_path(devname, BLK_OPEN_READ | BLK_OPEN_WRITE,
bdev_file = bdev_file_open_by_path(devname, BLK_OPEN_READ | BLK_OPEN_WRITE,
NULL, NULL);
if (IS_ERR(bdev_handle)) {
if (IS_ERR(bdev_file)) {
pr_warn("pNFS: failed to open device %s (%ld)\n",
devname, PTR_ERR(bdev_handle));
devname, PTR_ERR(bdev_file));
}
kfree(devname);
return bdev_handle;
return bdev_file;
}
static int
@ -327,7 +327,7 @@ bl_parse_scsi(struct nfs_server *server, struct pnfs_block_dev *d,
struct pnfs_block_volume *volumes, int idx, gfp_t gfp_mask)
{
struct pnfs_block_volume *v = &volumes[idx];
struct bdev_handle *bdev_handle;
struct file *bdev_file;
const struct pr_ops *ops;
int error;
@ -340,14 +340,14 @@ bl_parse_scsi(struct nfs_server *server, struct pnfs_block_dev *d,
* On other distributions like Debian, the default SCSI by-id path will
* point to the dm-multipath device if one exists.
*/
bdev_handle = bl_open_path(v, "dm-uuid-mpath-0x");
if (IS_ERR(bdev_handle))
bdev_handle = bl_open_path(v, "wwn-0x");
if (IS_ERR(bdev_handle))
return PTR_ERR(bdev_handle);
d->bdev_handle = bdev_handle;
bdev_file = bl_open_path(v, "dm-uuid-mpath-0x");
if (IS_ERR(bdev_file))
bdev_file = bl_open_path(v, "wwn-0x");
if (IS_ERR(bdev_file))
return PTR_ERR(bdev_file);
d->bdev_file = bdev_file;
d->len = bdev_nr_bytes(d->bdev_handle->bdev);
d->len = bdev_nr_bytes(file_bdev(d->bdev_file));
d->map = bl_map_simple;
d->pr_key = v->scsi.pr_key;
@ -355,20 +355,20 @@ bl_parse_scsi(struct nfs_server *server, struct pnfs_block_dev *d,
return -ENODEV;
pr_info("pNFS: using block device %s (reservation key 0x%llx)\n",
d->bdev_handle->bdev->bd_disk->disk_name, d->pr_key);
file_bdev(d->bdev_file)->bd_disk->disk_name, d->pr_key);
ops = d->bdev_handle->bdev->bd_disk->fops->pr_ops;
ops = file_bdev(d->bdev_file)->bd_disk->fops->pr_ops;
if (!ops) {
pr_err("pNFS: block device %s does not support reservations.",
d->bdev_handle->bdev->bd_disk->disk_name);
file_bdev(d->bdev_file)->bd_disk->disk_name);
error = -EINVAL;
goto out_blkdev_put;
}
error = ops->pr_register(d->bdev_handle->bdev, 0, d->pr_key, true);
error = ops->pr_register(file_bdev(d->bdev_file), 0, d->pr_key, true);
if (error) {
pr_err("pNFS: failed to register key for block device %s.",
d->bdev_handle->bdev->bd_disk->disk_name);
file_bdev(d->bdev_file)->bd_disk->disk_name);
goto out_blkdev_put;
}
@ -376,7 +376,7 @@ bl_parse_scsi(struct nfs_server *server, struct pnfs_block_dev *d,
return 0;
out_blkdev_put:
bdev_release(d->bdev_handle);
fput(d->bdev_file);
return error;
}

32
fs/ocfs2/cluster/heartbeat.c
View File

@ -213,7 +213,7 @@ struct o2hb_region {
unsigned int hr_num_pages;
struct page **hr_slot_data;
struct bdev_handle *hr_bdev_handle;
struct file *hr_bdev_file;
struct o2hb_disk_slot *hr_slots;
/* live node map of this region */
@ -263,7 +263,7 @@ struct o2hb_region {
static inline struct block_device *reg_bdev(struct o2hb_region *reg)
{
return reg->hr_bdev_handle ? reg->hr_bdev_handle->bdev : NULL;
return reg->hr_bdev_file ? file_bdev(reg->hr_bdev_file) : NULL;
}
struct o2hb_bio_wait_ctxt {
@ -1509,8 +1509,8 @@ static void o2hb_region_release(struct config_item *item)
kfree(reg->hr_slot_data);
}
if (reg->hr_bdev_handle)
bdev_release(reg->hr_bdev_handle);
if (reg->hr_bdev_file)
fput(reg->hr_bdev_file);
kfree(reg->hr_slots);
@ -1569,7 +1569,7 @@ static ssize_t o2hb_region_block_bytes_store(struct config_item *item,
unsigned long block_bytes;
unsigned int block_bits;
if (reg->hr_bdev_handle)
if (reg->hr_bdev_file)
return -EINVAL;
status = o2hb_read_block_input(reg, page, &block_bytes,
@ -1598,7 +1598,7 @@ static ssize_t o2hb_region_start_block_store(struct config_item *item,
char *p = (char *)page;
ssize_t ret;
if (reg->hr_bdev_handle)
if (reg->hr_bdev_file)
return -EINVAL;
ret = kstrtoull(p, 0, &tmp);
@ -1623,7 +1623,7 @@ static ssize_t o2hb_region_blocks_store(struct config_item *item,
unsigned long tmp;
char *p = (char *)page;
if (reg->hr_bdev_handle)
if (reg->hr_bdev_file)
return -EINVAL;
tmp = simple_strtoul(p, &p, 0);
@ -1642,7 +1642,7 @@ static ssize_t o2hb_region_dev_show(struct config_item *item, char *page)
{
unsigned int ret = 0;
if (to_o2hb_region(item)->hr_bdev_handle)
if (to_o2hb_region(item)->hr_bdev_file)
ret = sprintf(page, "%pg\n", reg_bdev(to_o2hb_region(item)));
return ret;
@ -1753,7 +1753,7 @@ out:
}
/*
* this is acting as commit; we set up all of hr_bdev_handle and hr_task or
* this is acting as commit; we set up all of hr_bdev_file and hr_task or
* nothing
*/
static ssize_t o2hb_region_dev_store(struct config_item *item,
@ -1769,7 +1769,7 @@ static ssize_t o2hb_region_dev_store(struct config_item *item,
ssize_t ret = -EINVAL;
int live_threshold;
if (reg->hr_bdev_handle)
if (reg->hr_bdev_file)
goto out;
/* We can't heartbeat without having had our node number
@ -1795,11 +1795,11 @@ static ssize_t o2hb_region_dev_store(struct config_item *item,
if (!S_ISBLK(f.file->f_mapping->host->i_mode))
goto out2;
reg->hr_bdev_handle = bdev_open_by_dev(f.file->f_mapping->host->i_rdev,
reg->hr_bdev_file = bdev_file_open_by_dev(f.file->f_mapping->host->i_rdev,
BLK_OPEN_WRITE | BLK_OPEN_READ, NULL, NULL);
if (IS_ERR(reg->hr_bdev_handle)) {
ret = PTR_ERR(reg->hr_bdev_handle);
reg->hr_bdev_handle = NULL;
if (IS_ERR(reg->hr_bdev_file)) {
ret = PTR_ERR(reg->hr_bdev_file);
reg->hr_bdev_file = NULL;
goto out2;
}
@ -1903,8 +1903,8 @@ static ssize_t o2hb_region_dev_store(struct config_item *item,
out3:
if (ret < 0) {
bdev_release(reg->hr_bdev_handle);
reg->hr_bdev_handle = NULL;
fput(reg->hr_bdev_file);
reg->hr_bdev_file = NULL;
}
out2:
fdput(f);

38
fs/reiserfs/journal.c
View File

@ -2386,7 +2386,7 @@ static int journal_read(struct super_block *sb)
cur_dblock = SB_ONDISK_JOURNAL_1st_BLOCK(sb);
reiserfs_info(sb, "checking transaction log (%pg)\n",
journal->j_bdev_handle->bdev);
file_bdev(journal->j_bdev_file));
start = ktime_get_seconds();
/*
@ -2447,7 +2447,7 @@ static int journal_read(struct super_block *sb)
* device and journal device to be the same
*/
d_bh =
reiserfs_breada(journal->j_bdev_handle->bdev, cur_dblock,
reiserfs_breada(file_bdev(journal->j_bdev_file), cur_dblock,
sb->s_blocksize,
SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
SB_ONDISK_JOURNAL_SIZE(sb));
@ -2588,9 +2588,9 @@ static void journal_list_init(struct super_block *sb)
static void release_journal_dev(struct reiserfs_journal *journal)
{
if (journal->j_bdev_handle) {
bdev_release(journal->j_bdev_handle);
journal->j_bdev_handle = NULL;
if (journal->j_bdev_file) {
fput(journal->j_bdev_file);
journal->j_bdev_file = NULL;
}
}
@ -2605,7 +2605,7 @@ static int journal_init_dev(struct super_block *super,
result = 0;
journal->j_bdev_handle = NULL;
journal->j_bdev_file = NULL;
jdev = SB_ONDISK_JOURNAL_DEVICE(super) ?
new_decode_dev(SB_ONDISK_JOURNAL_DEVICE(super)) : super->s_dev;
@ -2616,37 +2616,37 @@ static int journal_init_dev(struct super_block *super,
if ((!jdev_name || !jdev_name[0])) {
if (jdev == super->s_dev)
holder = NULL;
journal->j_bdev_handle = bdev_open_by_dev(jdev, blkdev_mode,
journal->j_bdev_file = bdev_file_open_by_dev(jdev, blkdev_mode,
holder, NULL);
if (IS_ERR(journal->j_bdev_handle)) {
result = PTR_ERR(journal->j_bdev_handle);
journal->j_bdev_handle = NULL;
if (IS_ERR(journal->j_bdev_file)) {
result = PTR_ERR(journal->j_bdev_file);
journal->j_bdev_file = NULL;
reiserfs_warning(super, "sh-458",
"cannot init journal device unknown-block(%u,%u): %i",
MAJOR(jdev), MINOR(jdev), result);
return result;
} else if (jdev != super->s_dev)
set_blocksize(journal->j_bdev_handle->bdev,
set_blocksize(file_bdev(journal->j_bdev_file),
super->s_blocksize);
return 0;
}
journal->j_bdev_handle = bdev_open_by_path(jdev_name, blkdev_mode,
journal->j_bdev_file = bdev_file_open_by_path(jdev_name, blkdev_mode,
holder, NULL);
if (IS_ERR(journal->j_bdev_handle)) {
result = PTR_ERR(journal->j_bdev_handle);
journal->j_bdev_handle = NULL;
if (IS_ERR(journal->j_bdev_file)) {
result = PTR_ERR(journal->j_bdev_file);
journal->j_bdev_file = NULL;
reiserfs_warning(super, "sh-457",
"journal_init_dev: Cannot open '%s': %i",
jdev_name, result);
return result;
}
set_blocksize(journal->j_bdev_handle->bdev, super->s_blocksize);
set_blocksize(file_bdev(journal->j_bdev_file), super->s_blocksize);
reiserfs_info(super,
"journal_init_dev: journal device: %pg\n",
journal->j_bdev_handle->bdev);
file_bdev(journal->j_bdev_file));
return 0;
}
@ -2804,7 +2804,7 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
"journal header magic %x (device %pg) does "
"not match to magic found in super block %x",
jh->jh_journal.jp_journal_magic,
journal->j_bdev_handle->bdev,
file_bdev(journal->j_bdev_file),
sb_jp_journal_magic(rs));
brelse(bhjh);
goto free_and_return;
@ -2828,7 +2828,7 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
reiserfs_info(sb, "journal params: device %pg, size %u, "
"journal first block %u, max trans len %u, max batch %u, "
"max commit age %u, max trans age %u\n",
journal->j_bdev_handle->bdev,
file_bdev(journal->j_bdev_file),
SB_ONDISK_JOURNAL_SIZE(sb),
SB_ONDISK_JOURNAL_1st_BLOCK(sb),
journal->j_trans_max,

2
fs/reiserfs/procfs.c
View File

@ -354,7 +354,7 @@ static int show_journal(struct seq_file *m, void *unused)
"prepare: \t%12lu\n"
"prepare_retry: \t%12lu\n",
DJP(jp_journal_1st_block),
SB_JOURNAL(sb)->j_bdev_handle->bdev,
file_bdev(SB_JOURNAL(sb)->j_bdev_file),
DJP(jp_journal_dev),
DJP(jp_journal_size),
DJP(jp_journal_trans_max),

8
fs/reiserfs/reiserfs.h
View File

@ -299,7 +299,7 @@ struct reiserfs_journal {
/* oldest journal block. start here for traverse */
struct reiserfs_journal_cnode *j_first;
struct bdev_handle *j_bdev_handle;
struct file *j_bdev_file;
/* first block on s_dev of reserved area journal */
int j_1st_reserved_block;
@ -2810,10 +2810,10 @@ struct reiserfs_journal_header {
/* We need these to make journal.c code more readable */
#define journal_find_get_block(s, block) __find_get_block(\
SB_JOURNAL(s)->j_bdev_handle->bdev, block, s->s_blocksize)
#define journal_getblk(s, block) __getblk(SB_JOURNAL(s)->j_bdev_handle->bdev,\
file_bdev(SB_JOURNAL(s)->j_bdev_file), block, s->s_blocksize)
#define journal_getblk(s, block) __getblk(file_bdev(SB_JOURNAL(s)->j_bdev_file),\
block, s->s_blocksize)
#define journal_bread(s, block) __bread(SB_JOURNAL(s)->j_bdev_handle->bdev,\
#define journal_bread(s, block) __bread(file_bdev(SB_JOURNAL(s)->j_bdev_file),\
block, s->s_blocksize)
enum reiserfs_bh_state_bits {

2
fs/romfs/super.c
View File

@ -594,7 +594,7 @@ static void romfs_kill_sb(struct super_block *sb)
#ifdef CONFIG_ROMFS_ON_BLOCK
if (sb->s_bdev) {
sync_blockdev(sb->s_bdev);
bdev_release(sb->s_bdev_handle);
fput(sb->s_bdev_file);
}
#endif
}

18
fs/super.c
View File

@ -1527,16 +1527,16 @@ int setup_bdev_super(struct super_block *sb, int sb_flags,
struct fs_context *fc)
{
blk_mode_t mode = sb_open_mode(sb_flags);
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct block_device *bdev;
bdev_handle = bdev_open_by_dev(sb->s_dev, mode, sb, &fs_holder_ops);
if (IS_ERR(bdev_handle)) {
bdev_file = bdev_file_open_by_dev(sb->s_dev, mode, sb, &fs_holder_ops);
if (IS_ERR(bdev_file)) {
if (fc)
errorf(fc, "%s: Can't open blockdev", fc->source);
return PTR_ERR(bdev_handle);
return PTR_ERR(bdev_file);
}
bdev = bdev_handle->bdev;
bdev = file_bdev(bdev_file);
/*
* This really should be in blkdev_get_by_dev, but right now can't due
@ -1544,7 +1544,7 @@ int setup_bdev_super(struct super_block *sb, int sb_flags,
* writable from userspace even for a read-only block device.
*/
if ((mode & BLK_OPEN_WRITE) && bdev_read_only(bdev)) {
bdev_release(bdev_handle);
fput(bdev_file);
return -EACCES;
}
@ -1555,11 +1555,11 @@ int setup_bdev_super(struct super_block *sb, int sb_flags,
if (atomic_read(&bdev->bd_fsfreeze_count) > 0) {
if (fc)
warnf(fc, "%pg: Can't mount, blockdev is frozen", bdev);
bdev_release(bdev_handle);
fput(bdev_file);
return -EBUSY;
}
spin_lock(&sb_lock);
sb->s_bdev_handle = bdev_handle;
sb->s_bdev_file = bdev_file;
sb->s_bdev = bdev;
sb->s_bdi = bdi_get(bdev->bd_disk->bdi);
if (bdev_stable_writes(bdev))
@ -1675,7 +1675,7 @@ void kill_block_super(struct super_block *sb)
generic_shutdown_super(sb);
if (bdev) {
sync_blockdev(bdev);
bdev_release(sb->s_bdev_handle);
fput(sb->s_bdev_file);
}
}

10
fs/xfs/xfs_buf.c
View File

@ -1951,7 +1951,7 @@ xfs_free_buftarg(
fs_put_dax(btp->bt_daxdev, btp->bt_mount);
/* the main block device is closed by kill_block_super */
if (btp->bt_bdev != btp->bt_mount->m_super->s_bdev)
bdev_release(btp->bt_bdev_handle);
fput(btp->bt_bdev_file);
kmem_free(btp);
}
@ -1994,7 +1994,7 @@ xfs_setsize_buftarg_early(
struct xfs_buftarg *
xfs_alloc_buftarg(
struct xfs_mount *mp,
struct bdev_handle *bdev_handle)
struct file *bdev_file)
{
xfs_buftarg_t *btp;
const struct dax_holder_operations *ops = NULL;
@ -2005,9 +2005,9 @@ xfs_alloc_buftarg(
btp = kmem_zalloc(sizeof(*btp), KM_NOFS);
btp->bt_mount = mp;
btp->bt_bdev_handle = bdev_handle;
btp->bt_dev = bdev_handle->bdev->bd_dev;
btp->bt_bdev = bdev_handle->bdev;
btp->bt_bdev_file = bdev_file;
btp->bt_bdev = file_bdev(bdev_file);
btp->bt_dev = btp->bt_bdev->bd_dev;
btp->bt_daxdev = fs_dax_get_by_bdev(btp->bt_bdev, &btp->bt_dax_part_off,
mp, ops);

4
fs/xfs/xfs_buf.h
View File

@ -98,7 +98,7 @@ typedef unsigned int xfs_buf_flags_t;
*/
typedef struct xfs_buftarg {
dev_t bt_dev;
struct bdev_handle *bt_bdev_handle;
struct file *bt_bdev_file;
struct block_device *bt_bdev;
struct dax_device *bt_daxdev;
u64 bt_dax_part_off;
@ -366,7 +366,7 @@ xfs_buf_update_cksum(struct xfs_buf *bp, unsigned long cksum_offset)
* Handling of buftargs.
*/
struct xfs_buftarg *xfs_alloc_buftarg(struct xfs_mount *mp,
struct bdev_handle *bdev_handle);
struct file *bdev_file);
extern void xfs_free_buftarg(struct xfs_buftarg *);
extern void xfs_buftarg_wait(struct xfs_buftarg *);
extern void xfs_buftarg_drain(struct xfs_buftarg *);

44
fs/xfs/xfs_super.c
View File

@ -361,16 +361,16 @@ STATIC int
xfs_blkdev_get(
xfs_mount_t *mp,
const char *name,
struct bdev_handle **handlep)
struct file **bdev_filep)
{
int error = 0;
*handlep = bdev_open_by_path(name,
*bdev_filep = bdev_file_open_by_path(name,
BLK_OPEN_READ | BLK_OPEN_WRITE | BLK_OPEN_RESTRICT_WRITES,
mp->m_super, &fs_holder_ops);
if (IS_ERR(*handlep)) {
error = PTR_ERR(*handlep);
*handlep = NULL;
if (IS_ERR(*bdev_filep)) {
error = PTR_ERR(*bdev_filep);
*bdev_filep = NULL;
xfs_warn(mp, "Invalid device [%s], error=%d", name, error);
}
@ -435,26 +435,26 @@ xfs_open_devices(
{
struct super_block *sb = mp->m_super;
struct block_device *ddev = sb->s_bdev;
struct bdev_handle *logdev_handle = NULL, *rtdev_handle = NULL;
struct file *logdev_file = NULL, *rtdev_file = NULL;
int error;
/*
* Open real time and log devices - order is important.
*/
if (mp->m_logname) {
error = xfs_blkdev_get(mp, mp->m_logname, &logdev_handle);
error = xfs_blkdev_get(mp, mp->m_logname, &logdev_file);
if (error)
return error;
}
if (mp->m_rtname) {
error = xfs_blkdev_get(mp, mp->m_rtname, &rtdev_handle);
error = xfs_blkdev_get(mp, mp->m_rtname, &rtdev_file);
if (error)
goto out_close_logdev;
if (rtdev_handle->bdev == ddev ||
(logdev_handle &&
rtdev_handle->bdev == logdev_handle->bdev)) {
if (file_bdev(rtdev_file) == ddev ||
(logdev_file &&
file_bdev(rtdev_file) == file_bdev(logdev_file))) {
xfs_warn(mp,
"Cannot mount filesystem with identical rtdev and ddev/logdev.");
error = -EINVAL;
@ -466,25 +466,25 @@ xfs_open_devices(
* Setup xfs_mount buffer target pointers
*/
error = -ENOMEM;
mp->m_ddev_targp = xfs_alloc_buftarg(mp, sb->s_bdev_handle);
mp->m_ddev_targp = xfs_alloc_buftarg(mp, sb->s_bdev_file);
if (!mp->m_ddev_targp)
goto out_close_rtdev;
if (rtdev_handle) {
mp->m_rtdev_targp = xfs_alloc_buftarg(mp, rtdev_handle);
if (rtdev_file) {
mp->m_rtdev_targp = xfs_alloc_buftarg(mp, rtdev_file);
if (!mp->m_rtdev_targp)
goto out_free_ddev_targ;
}
if (logdev_handle && logdev_handle->bdev != ddev) {
mp->m_logdev_targp = xfs_alloc_buftarg(mp, logdev_handle);
if (logdev_file && file_bdev(logdev_file) != ddev) {
mp->m_logdev_targp = xfs_alloc_buftarg(mp, logdev_file);
if (!mp->m_logdev_targp)
goto out_free_rtdev_targ;
} else {
mp->m_logdev_targp = mp->m_ddev_targp;
/* Handle won't be used, drop it */
if (logdev_handle)
bdev_release(logdev_handle);
if (logdev_file)
fput(logdev_file);
}
return 0;
@ -495,11 +495,11 @@ xfs_open_devices(
out_free_ddev_targ:
xfs_free_buftarg(mp->m_ddev_targp);
out_close_rtdev:
if (rtdev_handle)
bdev_release(rtdev_handle);
if (rtdev_file)
fput(rtdev_file);
out_close_logdev:
if (logdev_handle)
bdev_release(logdev_handle);
if (logdev_file)
fput(logdev_file);
return error;
}

13
include/linux/blkdev.h
View File

@ -24,6 +24,7 @@
#include <linux/sbitmap.h>
#include <linux/uuid.h>
#include <linux/xarray.h>
#include <linux/file.h>
struct module;
struct request_queue;
@ -1474,26 +1475,20 @@ extern const struct blk_holder_ops fs_holder_ops;
(BLK_OPEN_READ | BLK_OPEN_RESTRICT_WRITES | \
(((flags) & SB_RDONLY) ? 0 : BLK_OPEN_WRITE))
struct bdev_handle {
struct block_device *bdev;
void *holder;
blk_mode_t mode;
};
struct bdev_handle *bdev_open_by_dev(dev_t dev, blk_mode_t mode, void *holder,
struct file *bdev_file_open_by_dev(dev_t dev, blk_mode_t mode, void *holder,
const struct blk_holder_ops *hops);
struct bdev_handle *bdev_open_by_path(const char *path, blk_mode_t mode,
struct file *bdev_file_open_by_path(const char *path, blk_mode_t mode,
void *holder, const struct blk_holder_ops *hops);
int bd_prepare_to_claim(struct block_device *bdev, void *holder,
const struct blk_holder_ops *hops);
void bd_abort_claiming(struct block_device *bdev, void *holder);
void bdev_release(struct bdev_handle *handle);
/* just for blk-cgroup, don't use elsewhere */
struct block_device *blkdev_get_no_open(dev_t dev);
void blkdev_put_no_open(struct block_device *bdev);
struct block_device *I_BDEV(struct inode *inode);
struct block_device *file_bdev(struct file *bdev_file);
#ifdef CONFIG_BLOCK
void invalidate_bdev(struct block_device *bdev);

2
include/linux/device-mapper.h
View File

@ -165,7 +165,7 @@ void dm_error(const char *message);
struct dm_dev {
struct block_device *bdev;
struct bdev_handle *bdev_handle;
struct file *bdev_file;
struct dax_device *dax_dev;
blk_mode_t mode;
char name[16];

2
include/linux/file.h
View File

@ -24,6 +24,8 @@ struct inode;
struct path;
extern struct file *alloc_file_pseudo(struct inode *, struct vfsmount *,
const char *, int flags, const struct file_operations *);
extern struct file *alloc_file_pseudo_noaccount(struct inode *, struct vfsmount *,
const char *, int flags, const struct file_operations *);
extern struct file *alloc_file_clone(struct file *, int flags,
const struct file_operations *);

4
include/linux/fs.h
View File

@ -1237,8 +1237,8 @@ struct super_block {
#endif
struct hlist_bl_head s_roots; /* alternate root dentries for NFS */
struct list_head s_mounts; /* list of mounts; _not_ for fs use */
struct block_device *s_bdev;
struct bdev_handle *s_bdev_handle;
struct block_device *s_bdev; /* can go away once we use an accessor for @s_bdev_file */
struct file *s_bdev_file;
struct backing_dev_info *s_bdi;
struct mtd_info *s_mtd;
struct hlist_node s_instances;

4
include/linux/pktcdvd.h
View File

@ -154,9 +154,9 @@ struct packet_stacked_data
struct pktcdvd_device
{
struct bdev_handle *bdev_handle; /* dev attached */
struct file *bdev_file; /* dev attached */
/* handle acquired for bdev during pkt_open_dev() */
struct bdev_handle *open_bdev_handle;
struct file *f_open_bdev;
dev_t pkt_dev; /* our dev */
struct packet_settings settings;
struct packet_stats stats;

2
include/linux/swap.h
View File

@ -298,7 +298,7 @@ struct swap_info_struct {
unsigned int __percpu *cluster_next_cpu; /*percpu index for next allocation */
struct percpu_cluster __percpu *percpu_cluster; /* per cpu's swap location */
struct rb_root swap_extent_root;/* root of the swap extent rbtree */
struct bdev_handle *bdev_handle;/* open handle of the bdev */
struct file *bdev_file; /* open handle of the bdev */
struct block_device *bdev; /* swap device or bdev of swap file */
struct file *swap_file; /* seldom referenced */
unsigned int old_block_size; /* seldom referenced */

3
init/do_mounts.c
View File

@ -208,6 +208,9 @@ retry:
goto out;
case -EACCES:
case -EINVAL:
#ifdef CONFIG_BLOCK
init_flush_fput();
#endif
continue;
}
/*

9
init/do_mounts.h
View File

@ -9,6 +9,8 @@
#include <linux/major.h>
#include <linux/root_dev.h>
#include <linux/init_syscalls.h>
#include <linux/task_work.h>
#include <linux/file.h>
void mount_root_generic(char *name, char *pretty_name, int flags);
void mount_root(char *root_device_name);
@ -41,3 +43,10 @@ static inline bool initrd_load(char *root_device_name)
}
#endif
/* Ensure that async file closing finished to prevent spurious errors. */
static inline void init_flush_fput(void)
{
flush_delayed_fput();
task_work_run();
}

6
init/initramfs.c
View File

@ -16,9 +16,10 @@
#include <linux/mm.h>
#include <linux/namei.h>
#include <linux/init_syscalls.h>
#include <linux/task_work.h>
#include <linux/umh.h>
#include "do_mounts.h"
static __initdata bool csum_present;
static __initdata u32 io_csum;
@ -734,8 +735,7 @@ done:
initrd_start = 0;
initrd_end = 0;
flush_delayed_fput();
task_work_run();
init_flush_fput();
}
static ASYNC_DOMAIN_EXCLUSIVE(initramfs_domain);

28
kernel/power/swap.c
View File

@ -222,7 +222,7 @@ int swsusp_swap_in_use(void)
*/
static unsigned short root_swap = 0xffff;
static struct bdev_handle *hib_resume_bdev_handle;
static struct file *hib_resume_bdev_file;
struct hib_bio_batch {
atomic_t count;
@ -276,7 +276,7 @@ static int hib_submit_io(blk_opf_t opf, pgoff_t page_off, void *addr,
struct bio *bio;
int error = 0;
bio = bio_alloc(hib_resume_bdev_handle->bdev, 1, opf,
bio = bio_alloc(file_bdev(hib_resume_bdev_file), 1, opf,
GFP_NOIO | __GFP_HIGH);
bio->bi_iter.bi_sector = page_off * (PAGE_SIZE >> 9);
@ -357,14 +357,14 @@ static int swsusp_swap_check(void)
return res;
root_swap = res;
hib_resume_bdev_handle = bdev_open_by_dev(swsusp_resume_device,
hib_resume_bdev_file = bdev_file_open_by_dev(swsusp_resume_device,
BLK_OPEN_WRITE, NULL, NULL);
if (IS_ERR(hib_resume_bdev_handle))
return PTR_ERR(hib_resume_bdev_handle);
if (IS_ERR(hib_resume_bdev_file))
return PTR_ERR(hib_resume_bdev_file);
res = set_blocksize(hib_resume_bdev_handle->bdev, PAGE_SIZE);
res = set_blocksize(file_bdev(hib_resume_bdev_file), PAGE_SIZE);
if (res < 0)
bdev_release(hib_resume_bdev_handle);
fput(hib_resume_bdev_file);
return res;
}
@ -1523,10 +1523,10 @@ int swsusp_check(bool exclusive)
void *holder = exclusive ? &swsusp_holder : NULL;
int error;
hib_resume_bdev_handle = bdev_open_by_dev(swsusp_resume_device,
hib_resume_bdev_file = bdev_file_open_by_dev(swsusp_resume_device,
BLK_OPEN_READ, holder, NULL);
if (!IS_ERR(hib_resume_bdev_handle)) {
set_blocksize(hib_resume_bdev_handle->bdev, PAGE_SIZE);
if (!IS_ERR(hib_resume_bdev_file)) {
set_blocksize(file_bdev(hib_resume_bdev_file), PAGE_SIZE);
clear_page(swsusp_header);
error = hib_submit_io(REQ_OP_READ, swsusp_resume_block,
swsusp_header, NULL);
@ -1551,11 +1551,11 @@ int swsusp_check(bool exclusive)
put:
if (error)
bdev_release(hib_resume_bdev_handle);
fput(hib_resume_bdev_file);
else
pr_debug("Image signature found, resuming\n");
} else {
error = PTR_ERR(hib_resume_bdev_handle);
error = PTR_ERR(hib_resume_bdev_file);
}
if (error)
@ -1570,12 +1570,12 @@ put:
void swsusp_close(void)
{
if (IS_ERR(hib_resume_bdev_handle)) {
if (IS_ERR(hib_resume_bdev_file)) {
pr_debug("Image device not initialised\n");
return;
}
bdev_release(hib_resume_bdev_handle);
fput(hib_resume_bdev_file);
}
/**

22
mm/swapfile.c
View File

@ -2532,10 +2532,10 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
exit_swap_address_space(p->type);
inode = mapping->host;
if (p->bdev_handle) {
if (p->bdev_file) {
set_blocksize(p->bdev, old_block_size);
bdev_release(p->bdev_handle);
p->bdev_handle = NULL;
fput(p->bdev_file);
p->bdev_file = NULL;
}
inode_lock(inode);
@ -2765,14 +2765,14 @@ static int claim_swapfile(struct swap_info_struct *p, struct inode *inode)
int error;
if (S_ISBLK(inode->i_mode)) {
p->bdev_handle = bdev_open_by_dev(inode->i_rdev,
p->bdev_file = bdev_file_open_by_dev(inode->i_rdev,
BLK_OPEN_READ | BLK_OPEN_WRITE, p, NULL);
if (IS_ERR(p->bdev_handle)) {
error = PTR_ERR(p->bdev_handle);
p->bdev_handle = NULL;
if (IS_ERR(p->bdev_file)) {
error = PTR_ERR(p->bdev_file);
p->bdev_file = NULL;
return error;
}
p->bdev = p->bdev_handle->bdev;
p->bdev = file_bdev(p->bdev_file);
p->old_block_size = block_size(p->bdev);
error = set_blocksize(p->bdev, PAGE_SIZE);
if (error < 0)
@ -3208,10 +3208,10 @@ bad_swap:
p->percpu_cluster = NULL;
free_percpu(p->cluster_next_cpu);
p->cluster_next_cpu = NULL;
if (p->bdev_handle) {
if (p->bdev_file) {
set_blocksize(p->bdev, p->old_block_size);
bdev_release(p->bdev_handle);
p->bdev_handle = NULL;
fput(p->bdev_file);
p->bdev_file = NULL;
}
inode = NULL;
destroy_swap_extents(p);