Exemple #1
0
static int nilfs_direct_delete(struct nilfs_bmap *bmap, __u64 key)
{
	struct nilfs_direct *direct;
	union nilfs_bmap_ptr_req req;
	struct nilfs_bmap_stats stats;
	int ret;

	direct = (struct nilfs_direct *)bmap;
	if ((key > NILFS_DIRECT_KEY_MAX) ||
	    nilfs_direct_get_ptr(direct, key) == NILFS_BMAP_INVALID_PTR)
		return -ENOENT;

	ret = nilfs_direct_prepare_delete(direct, &req, key, &stats);
	if (ret < 0)
		return ret;
	nilfs_direct_commit_delete(direct, &req, key);
	nilfs_bmap_sub_blocks(bmap, stats.bs_nblocks);

	return 0;
}
Exemple #2
0
static int nilfs_direct_delete(struct nilfs_bmap *bmap, __u64 key)
{
	struct nilfs_direct *direct = (struct nilfs_direct *)bmap;
	union nilfs_bmap_ptr_req req;
	struct inode *dat;
	int ret;

	if (key > NILFS_DIRECT_KEY_MAX ||
	    nilfs_direct_get_ptr(direct, key) == NILFS_BMAP_INVALID_PTR)
		return -ENOENT;

	dat = NILFS_BMAP_USE_VBN(bmap) ? nilfs_bmap_get_dat(bmap) : NULL;
	req.bpr_ptr = nilfs_direct_get_ptr(direct, key);

	ret = nilfs_bmap_prepare_end_ptr(bmap, &req, dat);
	if (!ret) {
		nilfs_bmap_commit_end_ptr(bmap, &req, dat);
		nilfs_direct_set_ptr(direct, key, NILFS_BMAP_INVALID_PTR);
		nilfs_bmap_sub_blocks(bmap, 1);
	}
	return ret;
}