7 #include "kerncompat.h"
8 #include "radix-tree.h"
11 #include "print-tree.h"
13 #include "transaction.h"
16 struct btrfs_super_block super
;
17 static u64 dir_oid
= 0;
18 static u64 file_oid
= 33778;
20 static int find_num(struct radix_tree_root
*root
, unsigned long *num_ret
,
23 unsigned long num
= rand();
28 ret
= radix_tree_gang_lookup(root
, (void **)res
, num
, 2);
33 } else if (ret
!= 0 && num
== res
[0]) {
35 if (ret
> 1 && num
== res
[1]) {
44 static void initial_inode_init(struct btrfs_root
*root
,
45 struct btrfs_inode_item
*inode_item
)
47 memset(inode_item
, 0, sizeof(*inode_item
));
48 btrfs_set_inode_generation(inode_item
, root
->fs_info
->generation
);
49 btrfs_set_inode_mode(inode_item
, S_IFREG
| 0700);
52 static int ins_one(struct btrfs_trans_handle
*trans
, struct btrfs_root
*root
,
53 struct radix_tree_root
*radix
)
59 struct btrfs_path path
;
60 struct btrfs_key inode_map
;
61 struct btrfs_inode_item inode_item
;
63 find_num(radix
, &oid
, 0);
64 sprintf(buf
, "str-%lu", oid
);
66 ret
= btrfs_find_free_objectid(trans
, root
, dir_oid
+ 1, &objectid
);
70 inode_map
.objectid
= objectid
;
72 btrfs_set_key_type(&inode_map
, BTRFS_INODE_ITEM_KEY
);
75 initial_inode_init(root
, &inode_item
);
76 ret
= btrfs_insert_inode(trans
, root
, objectid
, &inode_item
);
79 ret
= btrfs_insert_dir_item(trans
, root
, buf
, strlen(buf
), dir_oid
,
80 &inode_map
, BTRFS_FT_UNKNOWN
);
84 radix_tree_preload(GFP_KERNEL
);
85 ret
= radix_tree_insert(radix
, oid
, (void *)oid
);
86 radix_tree_preload_end();
95 * if we got an EEXIST, it may be due to hash collision, double
98 btrfs_init_path(&path
);
99 ret
= btrfs_lookup_dir_item(trans
, root
, &path
, dir_oid
, buf
,
103 if (!btrfs_match_dir_item_name(root
, &path
, buf
, strlen(buf
))) {
104 struct btrfs_dir_item
*di
;
110 di
= btrfs_item_ptr(&path
.nodes
[0]->leaf
, path
.slots
[0],
111 struct btrfs_dir_item
);
112 found
= (char *)(di
+ 1);
113 found_len
= btrfs_dir_name_len(di
);
114 btrfs_name_hash(buf
, strlen(buf
), &myhash
);
115 btrfs_name_hash(found
, found_len
, &foundhash
);
116 if (myhash
!= foundhash
)
118 btrfs_release_path(root
, &path
);
122 btrfs_release_path(root
, &path
);
124 printf("failed to insert %lu ret %d\n", oid
, ret
);
128 static int insert_dup(struct btrfs_trans_handle
*trans
, struct btrfs_root
129 *root
, struct radix_tree_root
*radix
)
134 struct btrfs_key key
;
136 ret
= find_num(radix
, &oid
, 1);
139 sprintf(buf
, "str-%lu", oid
);
141 key
.objectid
= file_oid
;
143 btrfs_set_key_type(&key
, BTRFS_INODE_ITEM_KEY
);
145 ret
= btrfs_insert_dir_item(trans
, root
, buf
, strlen(buf
), dir_oid
,
146 &key
, BTRFS_FT_UNKNOWN
);
147 if (ret
!= -EEXIST
) {
148 printf("insert on %s gave us %d\n", buf
, ret
);
154 static int del_dir_item(struct btrfs_trans_handle
*trans
,
155 struct btrfs_root
*root
,
156 struct radix_tree_root
*radix
,
157 unsigned long radix_index
,
158 struct btrfs_path
*path
)
163 struct btrfs_dir_item
*di
;
165 /* find the inode number of the file */
166 di
= btrfs_item_ptr(&path
->nodes
[0]->leaf
, path
->slots
[0],
167 struct btrfs_dir_item
);
168 file_objectid
= btrfs_disk_key_objectid(&di
->location
);
170 /* delete the directory item */
171 ret
= btrfs_del_item(trans
, root
, path
);
174 btrfs_release_path(root
, path
);
176 /* delete the inode */
177 btrfs_init_path(path
);
178 ret
= btrfs_lookup_inode(trans
, root
, path
, file_objectid
, -1);
181 ret
= btrfs_del_item(trans
, root
, path
);
184 btrfs_release_path(root
, path
);
186 if (root
->fs_info
->last_inode_alloc
> file_objectid
)
187 root
->fs_info
->last_inode_alloc
= file_objectid
;
188 ptr
= radix_tree_delete(radix
, radix_index
);
195 btrfs_release_path(root
, path
);
197 printf("failed to delete %lu %d\n", radix_index
, ret
);
201 static int del_one(struct btrfs_trans_handle
*trans
, struct btrfs_root
*root
,
202 struct radix_tree_root
*radix
)
207 struct btrfs_path path
;
209 ret
= find_num(radix
, &oid
, 1);
212 sprintf(buf
, "str-%lu", oid
);
213 btrfs_init_path(&path
);
214 ret
= btrfs_lookup_dir_item(trans
, root
, &path
, dir_oid
, buf
,
219 ret
= del_dir_item(trans
, root
, radix
, oid
, &path
);
224 btrfs_release_path(root
, &path
);
225 printf("failed to delete %lu %d\n", oid
, ret
);
229 static int lookup_item(struct btrfs_trans_handle
*trans
, struct btrfs_root
230 *root
, struct radix_tree_root
*radix
)
232 struct btrfs_path path
;
237 struct btrfs_dir_item
*di
;
239 ret
= find_num(radix
, &oid
, 1);
242 sprintf(buf
, "str-%lu", oid
);
243 btrfs_init_path(&path
);
244 ret
= btrfs_lookup_dir_item(trans
, root
, &path
, dir_oid
, buf
,
247 di
= btrfs_item_ptr(&path
.nodes
[0]->leaf
, path
.slots
[0],
248 struct btrfs_dir_item
);
249 objectid
= btrfs_disk_key_objectid(&di
->location
);
251 btrfs_release_path(root
, &path
);
253 printf("unable to find key %lu\n", oid
);
259 static int lookup_enoent(struct btrfs_trans_handle
*trans
, struct btrfs_root
260 *root
, struct radix_tree_root
*radix
)
262 struct btrfs_path path
;
267 ret
= find_num(radix
, &oid
, 0);
270 sprintf(buf
, "str-%lu", oid
);
271 btrfs_init_path(&path
);
272 ret
= btrfs_lookup_dir_item(trans
, root
, &path
, dir_oid
, buf
,
274 btrfs_release_path(root
, &path
);
276 printf("able to find key that should not exist %lu\n", oid
);
282 static int empty_tree(struct btrfs_trans_handle
*trans
, struct btrfs_root
283 *root
, struct radix_tree_root
*radix
, int nr
)
285 struct btrfs_path path
;
286 struct btrfs_key key
;
287 unsigned long found
= 0;
293 struct btrfs_dir_item
*di
;
295 key
.offset
= (u64
)-1;
297 btrfs_set_key_type(&key
, BTRFS_DIR_ITEM_KEY
);
298 key
.objectid
= dir_oid
;
300 btrfs_init_path(&path
);
301 ret
= btrfs_search_slot(trans
, root
, &key
, &path
, -1, 1);
303 btrfs_release_path(root
, &path
);
307 if (path
.slots
[0] == 0) {
308 btrfs_release_path(root
, &path
);
313 slot
= path
.slots
[0];
314 di
= btrfs_item_ptr(&path
.nodes
[0]->leaf
, slot
,
315 struct btrfs_dir_item
);
316 found_len
= btrfs_dir_name_len(di
);
317 memcpy(buf
, (char *)(di
+ 1), found_len
);
318 BUG_ON(found_len
> 128);
319 buf
[found_len
] = '\0';
320 found
= atoi(buf
+ 4);
321 ret
= del_dir_item(trans
, root
, radix
, found
, &path
);
325 "failed to remove %lu from tree\n",
333 fprintf(stderr
, "failed to delete from the radix %lu\n", found
);
337 static int fill_tree(struct btrfs_trans_handle
*trans
, struct btrfs_root
*root
,
338 struct radix_tree_root
*radix
, int count
)
342 for (i
= 0; i
< count
; i
++) {
343 ret
= ins_one(trans
, root
, radix
);
345 fprintf(stderr
, "fill failed\n");
349 ret
= btrfs_commit_transaction(trans
, root
, &super
);
351 fprintf(stderr
, "fill commit failed\n");
355 if (i
&& i
% 10000 == 0) {
356 printf("bigfill %d\n", i
);
365 static int bulk_op(struct btrfs_trans_handle
*trans
, struct btrfs_root
*root
,
366 struct radix_tree_root
*radix
)
369 int nr
= rand() % 5000;
370 static int run_nr
= 0;
372 /* do the bulk op much less frequently */
375 ret
= empty_tree(trans
, root
, radix
, nr
);
378 ret
= fill_tree(trans
, root
, radix
, nr
);
385 int (*ops
[])(struct btrfs_trans_handle
*trans
, struct btrfs_root
*root
, struct
386 radix_tree_root
*radix
) =
387 { ins_one
, insert_dup
, del_one
, lookup_item
,
388 lookup_enoent
, bulk_op
};
390 void sigstopper(int ignored
)
393 fprintf(stderr
, "caught exit signal, stopping\n");
396 int print_usage(void)
398 printf("usage: tester [-ih] [-c count] [-f count]\n");
399 printf("\t -c count -- iteration count after filling\n");
400 printf("\t -f count -- run this many random inserts before starting\n");
401 printf("\t -i -- only do initial fill\n");
402 printf("\t -h -- this help text\n");
405 int main(int ac
, char **av
)
407 RADIX_TREE(radix
, GFP_KERNEL
);
408 struct btrfs_root
*root
;
413 int iterations
= 20000;
414 int init_fill_count
= 800000;
416 int initial_only
= 0;
417 struct btrfs_trans_handle
*trans
;
420 root
= open_ctree(av
[ac
-1], &super
);
421 trans
= btrfs_start_transaction(root
, 1);
423 dir_oid
= btrfs_super_root_dir(&super
);
425 signal(SIGTERM
, sigstopper
);
426 signal(SIGINT
, sigstopper
);
428 for (i
= 1 ; i
< ac
- 1; i
++) {
429 if (strcmp(av
[i
], "-i") == 0) {
431 } else if (strcmp(av
[i
], "-c") == 0) {
432 iterations
= atoi(av
[i
+1]);
434 } else if (strcmp(av
[i
], "-f") == 0) {
435 init_fill_count
= atoi(av
[i
+1]);
441 printf("initial fill\n");
442 ret
= fill_tree(trans
, root
, &radix
, init_fill_count
);
443 printf("starting run\n");
448 if (initial_only
== 1) {
451 for (i
= 0; i
< iterations
; i
++) {
452 op
= rand() % ARRAY_SIZE(ops
);
453 count
= rand() % 128;
458 if (i
&& i
% 5000 == 0) {
459 printf("open & close, root level %d nritems %d\n",
460 btrfs_header_level(&root
->node
->node
.header
),
461 btrfs_header_nritems(&root
->node
->node
.header
));
462 close_ctree(root
, &super
);
463 root
= open_ctree("dbfile", &super
);
466 ret
= ops
[op
](trans
, root
, &radix
);
468 fprintf(stderr
, "op %d failed %d:%d\n",
470 btrfs_print_tree(root
, root
->node
);
471 fprintf(stderr
, "op %d failed %d:%d\n",
476 if (ops
[op
] == bulk_op
)
478 if (keep_running
== 0) {
485 close_ctree(root
, &super
);