diff options
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index cc9d4114cda0..b48c41bf0f86 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -235,7 +235,10 @@ struct super_block *freeze_bdev(struct block_device *bdev) sb = get_active_super(bdev); if (!sb) goto out; - error = freeze_super(sb); + if (sb->s_op->freeze_super) + error = sb->s_op->freeze_super(sb); + else + error = freeze_super(sb); if (error) { deactivate_super(sb); bdev->bd_fsfreeze_count--; @@ -272,7 +275,10 @@ int thaw_bdev(struct block_device *bdev, struct super_block *sb) if (!sb) goto out; - error = thaw_super(sb); + if (sb->s_op->thaw_super) + error = sb->s_op->thaw_super(sb); + else + error = thaw_super(sb); if (error) { bdev->bd_fsfreeze_count++; mutex_unlock(&bdev->bd_fsfreeze_mutex); @@ -1585,7 +1591,7 @@ ssize_t blkdev_write_iter(struct kiocb *iocb, struct iov_iter *from) } EXPORT_SYMBOL_GPL(blkdev_write_iter); -static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to) +ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to) { struct file *file = iocb->ki_filp; struct inode *bd_inode = file->f_mapping->host; @@ -1599,6 +1605,7 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to) iov_iter_truncate(to, size); return generic_file_read_iter(iocb, to); } +EXPORT_SYMBOL_GPL(blkdev_read_iter); /* * Try to release a page associated with block device when the system |