C++ (Cpp) nilfs_bmap_do_truncate示例

示例#1

文件： bmap.c 项目： Aircell/asp-kernel

/**
 * nilfs_bmap_truncate - truncate a bmap to a specified key
 * @bmap: bmap
 * @key: key
 *
 * Description: nilfs_bmap_truncate() removes key-record pairs whose keys are
 * greater than or equal to @key from @bmap.
 *
 * Return Value: On success, 0 is returned. On error, one of the following
 * negative error codes is returned.
 *
 * %-EIO - I/O error.
 *
 * %-ENOMEM - Insufficient amount of memory available.
 */
int nilfs_bmap_truncate(struct nilfs_bmap *bmap, unsigned long key)
{
	int ret;

	down_write(&bmap->b_sem);
	ret = nilfs_bmap_do_truncate(bmap, key);
	up_write(&bmap->b_sem);
	return ret;
}

示例#2

文件： bmap.c 项目： faddat/linux-mainline-next

/**
 * nilfs_bmap_truncate - truncate a bmap to a specified key
 * @bmap: bmap
 * @key: key
 *
 * Description: nilfs_bmap_truncate() removes key-record pairs whose keys are
 * greater than or equal to @key from @bmap.
 *
 * Return Value: On success, 0 is returned. On error, one of the following
 * negative error codes is returned.
 *
 * %-EIO - I/O error.
 *
 * %-ENOMEM - Insufficient amount of memory available.
 */
int nilfs_bmap_truncate(struct nilfs_bmap *bmap, __u64 key)
{
	int ret;

	down_write(&bmap->b_sem);
	ret = nilfs_bmap_do_truncate(bmap, key);
	up_write(&bmap->b_sem);

	return nilfs_bmap_convert_error(bmap, __func__, ret);
}