Contributors: 24
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Josef Bacik |
477 |
36.69% |
10 |
13.16% |
| David Sterba |
143 |
11.00% |
11 |
14.47% |
| Nikolay Borisov |
127 |
9.77% |
2 |
2.63% |
| Omar Sandoval |
103 |
7.92% |
1 |
1.32% |
| Feifei Xu |
102 |
7.85% |
2 |
2.63% |
| Jeff Mahoney |
81 |
6.23% |
3 |
3.95% |
| Chris Mason |
60 |
4.62% |
13 |
17.11% |
| Josef Whiter |
45 |
3.46% |
10 |
13.16% |
| David Howells |
35 |
2.69% |
1 |
1.32% |
| Filipe David Borba Manana |
33 |
2.54% |
3 |
3.95% |
| Qu Wenruo |
31 |
2.38% |
2 |
2.63% |
| Liu Bo |
18 |
1.38% |
3 |
3.95% |
| Miao Xie |
14 |
1.08% |
3 |
3.95% |
| Al Viro |
7 |
0.54% |
1 |
1.32% |
| Wei Yongjun |
4 |
0.31% |
1 |
1.32% |
| Jan Schmidt |
4 |
0.31% |
1 |
1.32% |
| ZhangXiaoxu |
3 |
0.23% |
1 |
1.32% |
| Qinghuang Feng |
3 |
0.23% |
1 |
1.32% |
| Christian Brauner |
3 |
0.23% |
2 |
2.63% |
| Arne Jansen |
2 |
0.15% |
1 |
1.32% |
| Tejun Heo |
2 |
0.15% |
1 |
1.32% |
| Alexey Dobriyan |
1 |
0.08% |
1 |
1.32% |
| Gabriel Niebler |
1 |
0.08% |
1 |
1.32% |
| Sasha Levin |
1 |
0.08% |
1 |
1.32% |
| Total |
1300 |
|
76 |
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2013 Fusion IO. All rights reserved.
*/
#include <linux/fs.h>
#include <linux/mount.h>
#include <linux/pseudo_fs.h>
#include <linux/magic.h>
#include "btrfs-tests.h"
#include "../ctree.h"
#include "../free-space-cache.h"
#include "../free-space-tree.h"
#include "../transaction.h"
#include "../volumes.h"
#include "../disk-io.h"
#include "../qgroup.h"
#include "../block-group.h"
#include "../fs.h"
static struct vfsmount *test_mnt = NULL;
const char *test_error[] = {
[TEST_ALLOC_FS_INFO] = "cannot allocate fs_info",
[TEST_ALLOC_ROOT] = "cannot allocate root",
[TEST_ALLOC_EXTENT_BUFFER] = "cannot extent buffer",
[TEST_ALLOC_PATH] = "cannot allocate path",
[TEST_ALLOC_INODE] = "cannot allocate inode",
[TEST_ALLOC_BLOCK_GROUP] = "cannot allocate block group",
[TEST_ALLOC_EXTENT_MAP] = "cannot allocate extent map",
[TEST_ALLOC_CHUNK_MAP] = "cannot allocate chunk map",
};
static const struct super_operations btrfs_test_super_ops = {
.alloc_inode = btrfs_alloc_inode,
.destroy_inode = btrfs_test_destroy_inode,
};
static int btrfs_test_init_fs_context(struct fs_context *fc)
{
struct pseudo_fs_context *ctx = init_pseudo(fc, BTRFS_TEST_MAGIC);
if (!ctx)
return -ENOMEM;
ctx->ops = &btrfs_test_super_ops;
return 0;
}
static struct file_system_type test_type = {
.name = "btrfs_test_fs",
.init_fs_context = btrfs_test_init_fs_context,
.kill_sb = kill_anon_super,
};
struct inode *btrfs_new_test_inode(void)
{
struct inode *inode;
inode = new_inode(test_mnt->mnt_sb);
if (!inode)
return NULL;
inode->i_mode = S_IFREG;
btrfs_set_inode_number(BTRFS_I(inode), BTRFS_FIRST_FREE_OBJECTID);
inode_init_owner(&nop_mnt_idmap, inode, NULL, S_IFREG);
return inode;
}
static int btrfs_init_test_fs(void)
{
int ret;
ret = register_filesystem(&test_type);
if (ret) {
printk(KERN_ERR "btrfs: cannot register test file system\n");
return ret;
}
test_mnt = kern_mount(&test_type);
if (IS_ERR(test_mnt)) {
printk(KERN_ERR "btrfs: cannot mount test file system\n");
unregister_filesystem(&test_type);
return PTR_ERR(test_mnt);
}
return 0;
}
static void btrfs_destroy_test_fs(void)
{
kern_unmount(test_mnt);
unregister_filesystem(&test_type);
}
struct btrfs_device *btrfs_alloc_dummy_device(struct btrfs_fs_info *fs_info)
{
struct btrfs_device *dev;
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev)
return ERR_PTR(-ENOMEM);
extent_io_tree_init(fs_info, &dev->alloc_state, 0);
INIT_LIST_HEAD(&dev->dev_list);
list_add(&dev->dev_list, &fs_info->fs_devices->devices);
return dev;
}
static void btrfs_free_dummy_device(struct btrfs_device *dev)
{
extent_io_tree_release(&dev->alloc_state);
kfree(dev);
}
struct btrfs_fs_info *btrfs_alloc_dummy_fs_info(u32 nodesize, u32 sectorsize)
{
struct btrfs_fs_info *fs_info = kzalloc(sizeof(struct btrfs_fs_info),
GFP_KERNEL);
if (!fs_info)
return fs_info;
fs_info->fs_devices = kzalloc(sizeof(struct btrfs_fs_devices),
GFP_KERNEL);
if (!fs_info->fs_devices) {
kfree(fs_info);
return NULL;
}
INIT_LIST_HEAD(&fs_info->fs_devices->devices);
fs_info->super_copy = kzalloc(sizeof(struct btrfs_super_block),
GFP_KERNEL);
if (!fs_info->super_copy) {
kfree(fs_info->fs_devices);
kfree(fs_info);
return NULL;
}
btrfs_init_fs_info(fs_info);
fs_info->nodesize = nodesize;
fs_info->sectorsize = sectorsize;
fs_info->sectorsize_bits = ilog2(sectorsize);
set_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state);
test_mnt->mnt_sb->s_fs_info = fs_info;
return fs_info;
}
void btrfs_free_dummy_fs_info(struct btrfs_fs_info *fs_info)
{
struct radix_tree_iter iter;
void **slot;
struct btrfs_device *dev, *tmp;
if (!fs_info)
return;
if (WARN_ON(!btrfs_is_testing(fs_info)))
return;
test_mnt->mnt_sb->s_fs_info = NULL;
spin_lock(&fs_info->buffer_lock);
radix_tree_for_each_slot(slot, &fs_info->buffer_radix, &iter, 0) {
struct extent_buffer *eb;
eb = radix_tree_deref_slot_protected(slot, &fs_info->buffer_lock);
if (!eb)
continue;
/* Shouldn't happen but that kind of thinking creates CVE's */
if (radix_tree_exception(eb)) {
if (radix_tree_deref_retry(eb))
slot = radix_tree_iter_retry(&iter);
continue;
}
slot = radix_tree_iter_resume(slot, &iter);
spin_unlock(&fs_info->buffer_lock);
free_extent_buffer_stale(eb);
spin_lock(&fs_info->buffer_lock);
}
spin_unlock(&fs_info->buffer_lock);
btrfs_mapping_tree_free(fs_info);
list_for_each_entry_safe(dev, tmp, &fs_info->fs_devices->devices,
dev_list) {
btrfs_free_dummy_device(dev);
}
btrfs_free_qgroup_config(fs_info);
btrfs_free_fs_roots(fs_info);
kfree(fs_info->super_copy);
btrfs_check_leaked_roots(fs_info);
btrfs_extent_buffer_leak_debug_check(fs_info);
kfree(fs_info->fs_devices);
kfree(fs_info);
}
void btrfs_free_dummy_root(struct btrfs_root *root)
{
if (IS_ERR_OR_NULL(root))
return;
/* Will be freed by btrfs_free_fs_roots */
if (WARN_ON(test_bit(BTRFS_ROOT_IN_RADIX, &root->state)))
return;
btrfs_global_root_delete(root);
btrfs_put_root(root);
}
struct btrfs_block_group *
btrfs_alloc_dummy_block_group(struct btrfs_fs_info *fs_info,
unsigned long length)
{
struct btrfs_block_group *cache;
cache = kzalloc(sizeof(*cache), GFP_KERNEL);
if (!cache)
return NULL;
cache->free_space_ctl = kzalloc(sizeof(*cache->free_space_ctl),
GFP_KERNEL);
if (!cache->free_space_ctl) {
kfree(cache);
return NULL;
}
cache->start = 0;
cache->length = length;
cache->full_stripe_len = fs_info->sectorsize;
cache->fs_info = fs_info;
INIT_LIST_HEAD(&cache->list);
INIT_LIST_HEAD(&cache->cluster_list);
INIT_LIST_HEAD(&cache->bg_list);
btrfs_init_free_space_ctl(cache, cache->free_space_ctl);
mutex_init(&cache->free_space_lock);
return cache;
}
void btrfs_free_dummy_block_group(struct btrfs_block_group *cache)
{
if (!cache)
return;
btrfs_remove_free_space_cache(cache);
kfree(cache->free_space_ctl);
kfree(cache);
}
void btrfs_init_dummy_trans(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info)
{
memset(trans, 0, sizeof(*trans));
trans->transid = 1;
trans->type = __TRANS_DUMMY;
trans->fs_info = fs_info;
}
int btrfs_run_sanity_tests(void)
{
int ret, i;
u32 sectorsize, nodesize;
u32 test_sectorsize[] = {
PAGE_SIZE,
};
ret = btrfs_init_test_fs();
if (ret)
return ret;
for (i = 0; i < ARRAY_SIZE(test_sectorsize); i++) {
sectorsize = test_sectorsize[i];
for (nodesize = sectorsize;
nodesize <= BTRFS_MAX_METADATA_BLOCKSIZE;
nodesize <<= 1) {
pr_info("BTRFS: selftest: sectorsize: %u nodesize: %u\n",
sectorsize, nodesize);
ret = btrfs_test_free_space_cache(sectorsize, nodesize);
if (ret)
goto out;
ret = btrfs_test_extent_buffer_operations(sectorsize,
nodesize);
if (ret)
goto out;
ret = btrfs_test_extent_io(sectorsize, nodesize);
if (ret)
goto out;
ret = btrfs_test_inodes(sectorsize, nodesize);
if (ret)
goto out;
ret = btrfs_test_qgroups(sectorsize, nodesize);
if (ret)
goto out;
ret = btrfs_test_free_space_tree(sectorsize, nodesize);
if (ret)
goto out;
}
}
ret = btrfs_test_extent_map();
out:
btrfs_destroy_test_fs();
return ret;
}