1 files changed, 107 insertions, 72 deletions

diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c
index 8a59597f1883..b576897d71cc 100644
--- a/fs/btrfs/tests/btrfs-tests.c
+++ b/fs/btrfs/tests/btrfs-tests.c
@@ -5,6 +5,7 @@
 
 #include <linux/fs.h>
 #include <linux/mount.h>
+#include <linux/pseudo_fs.h>
 #include <linux/magic.h>
 #include "btrfs-tests.h"
 #include "../ctree.h"
@@ -14,31 +15,58 @@
 #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",
+	[TEST_ALLOC_IO_CONTEXT]	     = "cannot allocate io context",
+	[TEST_ALLOC_TRANSACTION]     = "cannot allocate transaction",
+};
+
 static const struct super_operations btrfs_test_super_ops = {
 	.alloc_inode	= btrfs_alloc_inode,
 	.destroy_inode	= btrfs_test_destroy_inode,
 };
 
-static struct dentry *btrfs_test_mount(struct file_system_type *fs_type,
-				       int flags, const char *dev_name,
-				       void *data)
+
+static int btrfs_test_init_fs_context(struct fs_context *fc)
 {
-	return mount_pseudo(fs_type, "btrfs_test:", &btrfs_test_super_ops,
-			    NULL, BTRFS_TEST_MAGIC);
+	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",
-	.mount		= btrfs_test_mount,
+	.init_fs_context = btrfs_test_init_fs_context,
 	.kill_sb	= kill_anon_super,
 };
 
 struct inode *btrfs_new_test_inode(void)
 {
-	return new_inode(test_mnt->mnt_sb);
+	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)
@@ -66,6 +94,27 @@ static void btrfs_destroy_test_fs(void)
 	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);
+
+	btrfs_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)
+{
+	btrfs_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),
@@ -79,6 +128,8 @@ struct btrfs_fs_info *btrfs_alloc_dummy_fs_info(u32 nodesize, u32 sectorsize)
 		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) {
@@ -87,37 +138,16 @@ struct btrfs_fs_info *btrfs_alloc_dummy_fs_info(u32 nodesize, u32 sectorsize)
 		return NULL;
 	}
 
+	btrfs_init_fs_info(fs_info);
+
 	fs_info->nodesize = nodesize;
 	fs_info->sectorsize = sectorsize;
+	fs_info->sectorsize_bits = ilog2(sectorsize);
 
-	if (init_srcu_struct(&fs_info->subvol_srcu)) {
-		kfree(fs_info->fs_devices);
-		kfree(fs_info->super_copy);
-		kfree(fs_info);
-		return NULL;
-	}
-
-	spin_lock_init(&fs_info->buffer_lock);
-	spin_lock_init(&fs_info->qgroup_lock);
-	spin_lock_init(&fs_info->qgroup_op_lock);
-	spin_lock_init(&fs_info->super_lock);
-	spin_lock_init(&fs_info->fs_roots_radix_lock);
-	spin_lock_init(&fs_info->tree_mod_seq_lock);
-	mutex_init(&fs_info->qgroup_ioctl_lock);
-	mutex_init(&fs_info->qgroup_rescan_lock);
-	rwlock_init(&fs_info->tree_mod_log_lock);
-	fs_info->running_transaction = NULL;
-	fs_info->qgroup_tree = RB_ROOT;
-	fs_info->qgroup_ulist = NULL;
-	atomic64_set(&fs_info->tree_mod_seq, 0);
-	INIT_LIST_HEAD(&fs_info->dirty_qgroups);
-	INIT_LIST_HEAD(&fs_info->dead_roots);
-	INIT_LIST_HEAD(&fs_info->tree_mod_seq_list);
-	INIT_RADIX_TREE(&fs_info->buffer_radix, GFP_ATOMIC);
-	INIT_RADIX_TREE(&fs_info->fs_roots_radix, GFP_ATOMIC);
-	extent_io_tree_init(&fs_info->freed_extents[0], NULL);
-	extent_io_tree_init(&fs_info->freed_extents[1], NULL);
-	fs_info->pinned_extents = &fs_info->freed_extents[0];
+	/* CRC32C csum size. */
+	fs_info->csum_size = 4;
+	fs_info->csums_per_leaf = BTRFS_MAX_ITEM_SIZE(fs_info) /
+		fs_info->csum_size;
 	set_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state);
 
 	test_mnt->mnt_sb->s_fs_info = fs_info;
@@ -127,65 +157,56 @@ struct btrfs_fs_info *btrfs_alloc_dummy_fs_info(u32 nodesize, u32 sectorsize)
 
 void btrfs_free_dummy_fs_info(struct btrfs_fs_info *fs_info)
 {
-	struct radix_tree_iter iter;
-	void **slot;
+	struct btrfs_device *dev, *tmp;
+	struct extent_buffer *eb;
+	unsigned long index;
 
 	if (!fs_info)
 		return;
 
-	if (WARN_ON(!test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO,
-			      &fs_info->fs_state)))
+	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);
+	xa_lock_irq(&fs_info->buffer_tree);
+	xa_for_each(&fs_info->buffer_tree, index, eb) {
+		xa_unlock_irq(&fs_info->buffer_tree);
+		free_extent_buffer(eb);
+		xa_lock_irq(&fs_info->buffer_tree);
 	}
-	spin_unlock(&fs_info->buffer_lock);
+	xa_unlock_irq(&fs_info->buffer_tree);
 
+	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);
-	cleanup_srcu_struct(&fs_info->subvol_srcu);
 	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 (!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;
-	if (root->node) {
-		/* One for allocate_extent_buffer */
-		free_extent_buffer(root->node);
-	}
-	kfree(root);
+	btrfs_global_root_delete(root);
+	btrfs_put_root(root);
 }
 
-struct btrfs_block_group_cache *
+struct btrfs_block_group *
 btrfs_alloc_dummy_block_group(struct btrfs_fs_info *fs_info,
 			      unsigned long length)
 {
-	struct btrfs_block_group_cache *cache;
+	struct btrfs_block_group *cache;
 
 	cache = kzalloc(sizeof(*cache), GFP_KERNEL);
 	if (!cache)
@@ -197,30 +218,38 @@ btrfs_alloc_dummy_block_group(struct btrfs_fs_info *fs_info,
 		return NULL;
 	}
 
-	cache->key.objectid = 0;
-	cache->key.offset = length;
-	cache->key.type = BTRFS_BLOCK_GROUP_ITEM_KEY;
+	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);
+	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 *cache)
+void btrfs_free_dummy_block_group(struct btrfs_block_group *cache)
 {
 	if (!cache)
 		return;
-	__btrfs_remove_free_space_cache(cache->free_space_ctl);
+	btrfs_remove_free_space_cache(cache);
 	kfree(cache->free_space_ctl);
 	kfree(cache);
 }
 
+void btrfs_init_dummy_transaction(struct btrfs_transaction *trans, struct btrfs_fs_info *fs_info)
+{
+	memset(trans, 0, sizeof(*trans));
+	trans->fs_info = fs_info;
+	xa_init(&trans->delayed_refs.head_refs);
+	xa_init(&trans->delayed_refs.dirty_extents);
+	spin_lock_init(&trans->delayed_refs.lock);
+}
+
 void btrfs_init_dummy_trans(struct btrfs_trans_handle *trans,
 			    struct btrfs_fs_info *fs_info)
 {
@@ -266,6 +295,12 @@ int btrfs_run_sanity_tests(void)
 			ret = btrfs_test_free_space_tree(sectorsize, nodesize);
 			if (ret)
 				goto out;
+			ret = btrfs_test_raid_stripe_tree(sectorsize, nodesize);
+			if (ret)
+				goto out;
+			ret = btrfs_test_delayed_refs(sectorsize, nodesize);
+			if (ret)
+				goto out;
 		}
 	}
 	ret = btrfs_test_extent_map();