diff options
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index c455a735d..29972c8ca 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -313,7 +313,7 @@ ssize_t block_read(struct file * filp, char * buf, size_t count, loff_t *ppos) * since the vma has no handle. */ -static int block_fsync(struct file *filp, struct dentry *dentry) +static int block_fsync(struct file *filp, struct dentry *dentry, int datasync) { return fsync_dev(dentry->d_inode->i_rdev); } @@ -597,6 +597,8 @@ int blkdev_get(struct block_device *bdev, mode_t mode, unsigned flags, int kind) ret = bdev->bd_op->open(fake_inode, &fake_file); if (!ret) atomic_inc(&bdev->bd_openers); + else if (!atomic_read(&bdev->bd_openers)) + bdev->bd_op = NULL; iput(fake_inode); } } @@ -617,6 +619,8 @@ int blkdev_open(struct inode * inode, struct file * filp) ret = bdev->bd_op->open(inode,filp); if (!ret) atomic_inc(&bdev->bd_openers); + else if (!atomic_read(&bdev->bd_openers)) + bdev->bd_op = NULL; } up(&bdev->bd_sem); return ret; |