1 // SPDX-License-Identifier: GPL-2.0+
5  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
20 		((struct nilfs_direct_node *)direct->b_u.u_data + 1);  in nilfs_direct_dptrs()
24 nilfs_direct_get_ptr(const struct nilfs_bmap *direct, __u64 key)  in nilfs_direct_get_ptr()  argument
26 	return le64_to_cpu(*(nilfs_direct_dptrs(direct) + key));  in nilfs_direct_get_ptr()
30 					__u64 key, __u64 ptr)  in nilfs_direct_set_ptr()  argument
32 	*(nilfs_direct_dptrs(direct) + key) = cpu_to_le64(ptr);  in nilfs_direct_set_ptr()
36 			       __u64 key, int level, __u64 *ptrp)  in nilfs_direct_lookup()  argument
40 	if (key > NILFS_DIRECT_KEY_MAX || level != 1)  in nilfs_direct_lookup()
41 		return -ENOENT;  in nilfs_direct_lookup()
42 	ptr = nilfs_direct_get_ptr(direct, key);  in nilfs_direct_lookup()
44 		return -ENOENT;  in nilfs_direct_lookup()
51 				      __u64 key, __u64 *ptrp,  in nilfs_direct_lookup_contig()  argument
59 	if (key > NILFS_DIRECT_KEY_MAX)  in nilfs_direct_lookup_contig()
60 		return -ENOENT;  in nilfs_direct_lookup_contig()
61 	ptr = nilfs_direct_get_ptr(direct, key);  in nilfs_direct_lookup_contig()
63 		return -ENOENT;  in nilfs_direct_lookup_contig()
74 			  NILFS_DIRECT_KEY_MAX - key + 1);  in nilfs_direct_lookup_contig()
76 		     (ptr2 = nilfs_direct_get_ptr(direct, key + cnt)) !=  in nilfs_direct_lookup_contig()
92 	if (ret == -ENOENT)  in nilfs_direct_lookup_contig()
93 		ret = -EINVAL;  /* Notify bmap layer of metadata corruption */  in nilfs_direct_lookup_contig()
98 nilfs_direct_find_target_v(const struct nilfs_bmap *direct, __u64 key)  in nilfs_direct_find_target_v()  argument
102 	ptr = nilfs_bmap_find_target_seq(direct, key);  in nilfs_direct_find_target_v()
111 static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)  in nilfs_direct_insert()  argument
118 	if (key > NILFS_DIRECT_KEY_MAX)  in nilfs_direct_insert()
119 		return -ENOENT;  in nilfs_direct_insert()
120 	if (nilfs_direct_get_ptr(bmap, key) != NILFS_BMAP_INVALID_PTR)  in nilfs_direct_insert()
121 		return -EEXIST;  in nilfs_direct_insert()
124 		req.bpr_ptr = nilfs_direct_find_target_v(bmap, key);  in nilfs_direct_insert()
134 		nilfs_direct_set_ptr(bmap, key, req.bpr_ptr);  in nilfs_direct_insert()
140 			nilfs_bmap_set_target_v(bmap, key, req.bpr_ptr);  in nilfs_direct_insert()
142 		nilfs_inode_add_blocks(bmap->b_inode, 1);  in nilfs_direct_insert()
147 static int nilfs_direct_delete(struct nilfs_bmap *bmap, __u64 key)  in nilfs_direct_delete()  argument
153 	if (key > NILFS_DIRECT_KEY_MAX ||  in nilfs_direct_delete()
154 	    nilfs_direct_get_ptr(bmap, key) == NILFS_BMAP_INVALID_PTR)  in nilfs_direct_delete()
155 		return -ENOENT;  in nilfs_direct_delete()
158 	req.bpr_ptr = nilfs_direct_get_ptr(bmap, key);  in nilfs_direct_delete()
163 		nilfs_direct_set_ptr(bmap, key, NILFS_BMAP_INVALID_PTR);  in nilfs_direct_delete()
164 		nilfs_inode_sub_blocks(bmap->b_inode, 1);  in nilfs_direct_delete()
172 	__u64 key;  in nilfs_direct_seek_key()  local
174 	for (key = start; key <= NILFS_DIRECT_KEY_MAX; key++) {  in nilfs_direct_seek_key()
175 		if (nilfs_direct_get_ptr(direct, key) !=  in nilfs_direct_seek_key()
177 			*keyp = key;  in nilfs_direct_seek_key()
181 	return -ENOENT;  in nilfs_direct_seek_key()
186 	__u64 key, lastkey;  in nilfs_direct_last_key()  local
189 	for (key = NILFS_DIRECT_KEY_MIN; key <= NILFS_DIRECT_KEY_MAX; key++)  in nilfs_direct_last_key()
190 		if (nilfs_direct_get_ptr(direct, key) !=  in nilfs_direct_last_key()
192 			lastkey = key;  in nilfs_direct_last_key()
195 		return -ENOENT;  in nilfs_direct_last_key()
202 static int nilfs_direct_check_insert(const struct nilfs_bmap *bmap, __u64 key)  in nilfs_direct_check_insert()  argument
204 	return key > NILFS_DIRECT_KEY_MAX;  in nilfs_direct_check_insert()
210 	__u64 key;  in nilfs_direct_gather_data()  local
217 	for (key = 0; key < nitems; key++) {  in nilfs_direct_gather_data()
218 		ptr = nilfs_direct_get_ptr(direct, key);  in nilfs_direct_gather_data()
220 			keys[n] = key;  in nilfs_direct_gather_data()
229 				    __u64 key, __u64 *keys, __u64 *ptrs, int n)  in nilfs_direct_delete_and_convert()  argument
237 	ret = bmap->b_ops->bop_delete(bmap, key);  in nilfs_direct_delete_and_convert()
242 	if (bmap->b_ops->bop_clear != NULL)  in nilfs_direct_delete_and_convert()
243 		bmap->b_ops->bop_clear(bmap);  in nilfs_direct_delete_and_convert()
249 			dptrs[i] = (i != key) ?  in nilfs_direct_delete_and_convert()
266 	__u64 key;  in nilfs_direct_propagate()  local
274 	key = nilfs_bmap_data_get_key(bmap, bh);  in nilfs_direct_propagate()
275 	ptr = nilfs_direct_get_ptr(bmap, key);  in nilfs_direct_propagate()
283 					bmap->b_ptr_type == NILFS_BMAP_PTR_VS);  in nilfs_direct_propagate()
285 		nilfs_direct_set_ptr(bmap, key, newreq.pr_entry_nr);  in nilfs_direct_propagate()
293 				 __u64 key, __u64 ptr,  in nilfs_direct_assign_v()  argument
306 		binfo->bi_v.bi_vblocknr = cpu_to_le64(ptr);  in nilfs_direct_assign_v()
307 		binfo->bi_v.bi_blkoff = cpu_to_le64(key);  in nilfs_direct_assign_v()
313 				 __u64 key, __u64 ptr,  in nilfs_direct_assign_p()  argument
318 	nilfs_direct_set_ptr(direct, key, blocknr);  in nilfs_direct_assign_p()
320 	binfo->bi_dat.bi_blkoff = cpu_to_le64(key);  in nilfs_direct_assign_p()
321 	binfo->bi_dat.bi_level = 0;  in nilfs_direct_assign_p()
322 	memset(binfo->bi_dat.bi_pad, 0, sizeof(binfo->bi_dat.bi_pad));  in nilfs_direct_assign_p()
332 	__u64 key;  in nilfs_direct_assign()  local
335 	key = nilfs_bmap_data_get_key(bmap, *bh);  in nilfs_direct_assign()
336 	if (unlikely(key > NILFS_DIRECT_KEY_MAX)) {  in nilfs_direct_assign()
337 		nilfs_crit(bmap->b_inode->i_sb,  in nilfs_direct_assign()
338 			   "%s (ino=%lu): invalid key: %llu",  in nilfs_direct_assign()
340 			   bmap->b_inode->i_ino, (unsigned long long)key);  in nilfs_direct_assign()
341 		return -EINVAL;  in nilfs_direct_assign()
343 	ptr = nilfs_direct_get_ptr(bmap, key);  in nilfs_direct_assign()
345 		nilfs_crit(bmap->b_inode->i_sb,  in nilfs_direct_assign()
348 			   bmap->b_inode->i_ino, (unsigned long long)ptr);  in nilfs_direct_assign()
349 		return -EINVAL;  in nilfs_direct_assign()
353 		nilfs_direct_assign_v(bmap, key, ptr, bh, blocknr, binfo) :  in nilfs_direct_assign()
354 		nilfs_direct_assign_p(bmap, key, ptr, bh, blocknr, binfo);  in nilfs_direct_assign()
382 	bmap->b_ops = &nilfs_direct_ops;  in nilfs_direct_init()