block_dev: switch to fixed_size_llseek()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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parent
d2c40f789f
commit
5d48f3a2de
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@ -325,31 +325,10 @@ static int blkdev_write_end(struct file *file, struct address_space *mapping,
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static loff_t block_llseek(struct file *file, loff_t offset, int whence)
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static loff_t block_llseek(struct file *file, loff_t offset, int whence)
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{
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{
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struct inode *bd_inode = file->f_mapping->host;
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struct inode *bd_inode = file->f_mapping->host;
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loff_t size;
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loff_t retval;
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loff_t retval;
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mutex_lock(&bd_inode->i_mutex);
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mutex_lock(&bd_inode->i_mutex);
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size = i_size_read(bd_inode);
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retval = fixed_size_llseek(file, offset, whence, i_size_read(bd_inode));
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retval = -EINVAL;
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switch (whence) {
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case SEEK_END:
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offset += size;
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break;
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case SEEK_CUR:
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offset += file->f_pos;
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case SEEK_SET:
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break;
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default:
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goto out;
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}
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if (offset >= 0 && offset <= size) {
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if (offset != file->f_pos) {
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file->f_pos = offset;
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}
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retval = offset;
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}
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out:
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mutex_unlock(&bd_inode->i_mutex);
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mutex_unlock(&bd_inode->i_mutex);
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return retval;
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return retval;
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}
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}
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