diff options
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 610e8e0b04b8..9fb0b15331d3 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -355,25 +355,30 @@ static loff_t block_llseek(struct file *file, loff_t offset, int origin) mutex_lock(&bd_inode->i_mutex); size = i_size_read(bd_inode); + retval = -EINVAL; switch (origin) { - case 2: + case SEEK_END: offset += size; break; - case 1: + case SEEK_CUR: offset += file->f_pos; + case SEEK_SET: + break; + default: + goto out; } - retval = -EINVAL; if (offset >= 0 && offset <= size) { if (offset != file->f_pos) { file->f_pos = offset; } retval = offset; } +out: mutex_unlock(&bd_inode->i_mutex); return retval; } -int blkdev_fsync(struct file *filp, int datasync) +int blkdev_fsync(struct file *filp, loff_t start, loff_t end, int datasync) { struct inode *bd_inode = filp->f_mapping->host; struct block_device *bdev = I_BDEV(bd_inode); @@ -384,14 +389,10 @@ int blkdev_fsync(struct file *filp, int datasync) * i_mutex and doing so causes performance issues with concurrent * O_SYNC writers to a block device. */ - mutex_unlock(&bd_inode->i_mutex); - error = blkdev_issue_flush(bdev, GFP_KERNEL, NULL); if (error == -EOPNOTSUPP) error = 0; - mutex_lock(&bd_inode->i_mutex); - return error; } EXPORT_SYMBOL(blkdev_fsync); |