mirror of https://gitee.com/openkylin/linux.git
Btrfs: Fixup reference counting on cows
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
parent
02217ed299
commit
a28ec19775
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@ -1,7 +1,7 @@
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CC=gcc
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CFLAGS = -g -Wall
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headers = radix-tree.h ctree.h disk-io.h kerncompat.h print-tree.h
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headers = radix-tree.h ctree.h disk-io.h kerncompat.h print-tree.h list.h
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objects = ctree.o disk-io.o radix-tree.o mkfs.o extent-tree.o print-tree.o
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# if you don't have sparse installed, use ls instead
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@ -50,16 +50,17 @@ int btrfs_cow_block(struct ctree_root *root,
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memcpy(&cow->node, &buf->node, sizeof(buf->node));
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cow->node.header.blocknr = cow->blocknr;
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*cow_ret = cow;
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btrfs_inc_ref(root, buf);
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if (buf == root->node) {
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root->node = cow;
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cow->count++;
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if (buf != root->commit_root)
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free_extent(root, buf->blocknr, 1);
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tree_block_release(root, buf);
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} else {
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parent->node.blockptrs[parent_slot] = cow->blocknr;
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BUG_ON(list_empty(&parent->dirty));
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}
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if (0 && root != root->extent_root && !is_leaf(cow->node.header.flags)) {
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btrfs_inc_ref(root, cow);
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free_extent(root, buf->blocknr, 1);
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}
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tree_block_release(root, buf);
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return 0;
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@ -1018,7 +1019,6 @@ static int split_leaf(struct ctree_root *root, struct ctree_path *path,
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slot = path->slots[0];
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nritems = l->header.nritems;
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mid = (nritems + 1)/ 2;
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right_buffer = alloc_free_block(root);
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BUG_ON(!right_buffer);
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BUG_ON(mid == nritems);
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@ -1170,7 +1170,6 @@ static int del_ptr(struct ctree_root *root, struct ctree_path *path, int level,
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node = &parent->node;
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nritems = node->header.nritems;
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if (slot != nritems -1) {
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memmove(node->keys + slot, node->keys + slot + 1,
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sizeof(struct key) * (nritems - slot - 1));
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@ -51,10 +51,12 @@ struct tree_buffer;
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*/
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struct ctree_root {
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struct tree_buffer *node;
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struct tree_buffer *commit_root;
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struct ctree_root *extent_root;
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struct key current_insert;
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int fp;
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struct radix_tree_root cache_radix;
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struct radix_tree_root pinned_radix;
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struct list_head trans;
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struct list_head cache;
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int cache_size;
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@ -151,4 +153,6 @@ int del_item(struct ctree_root *root, struct ctree_path *path);
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int insert_item(struct ctree_root *root, struct key *key, void *data, int data_size);
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int next_leaf(struct ctree_root *root, struct ctree_path *path);
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int leaf_free_space(struct leaf *leaf);
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int btrfs_drop_snapshot(struct ctree_root *root, struct tree_buffer *snap);
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int btrfs_finish_extent_commit(struct ctree_root *root);
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#endif
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@ -153,13 +153,24 @@ static int __commit_transaction(struct ctree_root *root)
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return ret;
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}
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int commit_transaction(struct ctree_root *root)
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int commit_transaction(struct ctree_root *root, struct ctree_super_block *s)
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{
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int ret;
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int ret = 0;
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ret = __commit_transaction(root);
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if (!ret && root != root->extent_root)
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ret = __commit_transaction(root->extent_root);
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BUG_ON(ret);
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if (root->commit_root != root->node) {
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struct tree_buffer *snap = root->commit_root;
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root->commit_root = root->node;
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root->node->count++;
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ret = btrfs_drop_snapshot(root, snap);
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BUG_ON(ret);
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tree_block_release(root, snap);
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}
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write_ctree_super(root, s);
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btrfs_finish_extent_commit(root);
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return ret;
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}
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@ -168,10 +179,13 @@ static int __setup_root(struct ctree_root *root, struct ctree_root *extent_root,
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{
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INIT_LIST_HEAD(&root->trans);
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INIT_LIST_HEAD(&root->cache);
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root->cache_size = 0;
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root->fp = fp;
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root->node = NULL;
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root->node = read_tree_block(root, info->tree_root);
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root->extent_root = extent_root;
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root->commit_root = NULL;
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root->node = read_tree_block(root, info->tree_root);
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memset(&root->current_insert, 0, sizeof(root->current_insert));
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return 0;
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}
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@ -188,6 +202,8 @@ struct ctree_root *open_ctree(char *filename, struct ctree_super_block *super)
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return NULL;
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}
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INIT_RADIX_TREE(&root->cache_radix, GFP_KERNEL);
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INIT_RADIX_TREE(&root->pinned_radix, GFP_KERNEL);
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INIT_RADIX_TREE(&extent_root->pinned_radix, GFP_KERNEL);
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INIT_RADIX_TREE(&extent_root->cache_radix, GFP_KERNEL);
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ret = pread(fp, super, sizeof(struct ctree_super_block),
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CTREE_SUPER_INFO_OFFSET(CTREE_BLOCKSIZE));
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@ -204,6 +220,8 @@ struct ctree_root *open_ctree(char *filename, struct ctree_super_block *super)
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BUG_ON(ret < 0);
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__setup_root(root, extent_root, &super->root_info, fp);
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__setup_root(extent_root, extent_root, &super->extent_info, fp);
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root->commit_root = root->node;
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root->node->count++;
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return root;
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}
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@ -236,9 +254,11 @@ static int drop_cache(struct ctree_root *root)
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}
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return 0;
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}
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int close_ctree(struct ctree_root *root)
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int close_ctree(struct ctree_root *root, struct ctree_super_block *s)
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{
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commit_transaction(root);
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commit_transaction(root, s);
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__commit_transaction(root->extent_root);
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write_ctree_super(root, s);
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drop_cache(root->extent_root);
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drop_cache(root);
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BUG_ON(!list_empty(&root->trans));
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@ -249,6 +269,7 @@ int close_ctree(struct ctree_root *root)
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tree_block_release(root, root->node);
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if (root->extent_root->node)
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tree_block_release(root->extent_root, root->extent_root->node);
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tree_block_release(root, root->commit_root);
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free(root);
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printf("on close %d blocks are allocated\n", allocated_blocks);
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return 0;
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@ -18,9 +18,9 @@ struct tree_buffer *find_tree_block(struct ctree_root *root, u64 blocknr);
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int write_tree_block(struct ctree_root *root, struct tree_buffer *buf);
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int dirty_tree_block(struct ctree_root *root, struct tree_buffer *buf);
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int clean_tree_block(struct ctree_root *root, struct tree_buffer *buf);
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int commit_transaction(struct ctree_root *root);
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int commit_transaction(struct ctree_root *root, struct ctree_super_block *s);
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struct ctree_root *open_ctree(char *filename, struct ctree_super_block *s);
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int close_ctree(struct ctree_root *root);
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int close_ctree(struct ctree_root *root, struct ctree_super_block *s);
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void tree_block_release(struct ctree_root *root, struct tree_buffer *buf);
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int write_ctree_super(struct ctree_root *root, struct ctree_super_block *s);
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int mkfs(int fd);
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@ -13,7 +13,8 @@
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* other allocations are done. The pending tag is also used in the same
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* manner for deletes.
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*/
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#define CTREE_EXTENT_PENDING 0
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#define CTREE_EXTENT_PENDING_ADD 0
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#define CTREE_EXTENT_PENDING_DEL 1
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static int inc_block_ref(struct ctree_root *root, u64 blocknr)
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{
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key.flags = 0;
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key.offset = 1;
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ret = search_slot(root->extent_root, &key, &path, 0, 1);
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if (ret != 0)
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BUG();
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BUG_ON(ret != 0);
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l = &path.nodes[0]->leaf;
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item = (struct extent_item *)(l->data +
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l->items[path.slots[0]].offset);
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item->refs++;
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BUG_ON(list_empty(&path.nodes[0]->dirty));
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release_path(root->extent_root, &path);
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return 0;
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}
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static int lookup_block_ref(struct ctree_root *root, u64 blocknr, int *refs)
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{
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struct ctree_path path;
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int ret;
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struct key key;
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struct leaf *l;
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struct extent_item *item;
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init_path(&path);
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key.objectid = blocknr;
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key.flags = 0;
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key.offset = 1;
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ret = search_slot(root->extent_root, &key, &path, 0, 0);
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if (ret != 0)
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BUG();
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l = &path.nodes[0]->leaf;
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item = (struct extent_item *)(l->data +
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l->items[path.slots[0]].offset);
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*refs = item->refs;
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release_path(root->extent_root, &path);
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return 0;
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}
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int btrfs_inc_ref(struct ctree_root *root, struct tree_buffer *buf)
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{
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u64 blocknr;
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int i;
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if (root == root->extent_root)
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return 0;
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if (is_leaf(buf->node.header.flags))
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return 0;
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for (i = 0; i < buf->node.header.nritems; i++) {
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blocknr = buf->node.blockptrs[i];
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inc_block_ref(root, blocknr);
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return 0;
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}
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int btrfs_finish_extent_commit(struct ctree_root *root)
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{
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struct ctree_root *extent_root = root->extent_root;
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unsigned long gang[8];
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int ret;
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int i;
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while(1) {
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ret = radix_tree_gang_lookup(&extent_root->pinned_radix,
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(void **)gang, 0,
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ARRAY_SIZE(gang));
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if (!ret)
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break;
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for (i = 0; i < ret; i++)
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radix_tree_delete(&extent_root->pinned_radix, gang[i]);
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}
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return 0;
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}
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/*
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* remove an extent from the root, returns 0 on success
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*/
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int __free_extent(struct ctree_root *root, u64 blocknr, u64 num_blocks)
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{
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struct ctree_path path;
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struct key key;
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struct ctree_root *extent_root = root->extent_root;
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int ret;
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struct item *item;
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struct extent_item *ei;
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key.objectid = blocknr;
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key.flags = 0;
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key.offset = num_blocks;
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init_path(&path);
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ret = search_slot(extent_root, &key, &path, -1, 1);
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if (ret) {
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printf("failed to find %Lu\n", key.objectid);
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print_tree(extent_root, extent_root->node);
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printf("failed to find %Lu\n", key.objectid);
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BUG();
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}
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item = path.nodes[0]->leaf.items + path.slots[0];
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ei = (struct extent_item *)(path.nodes[0]->leaf.data + item->offset);
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BUG_ON(ei->refs == 0);
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ei->refs--;
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if (ei->refs == 0) {
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if (root == extent_root) {
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int err;
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radix_tree_preload(GFP_KERNEL);
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err = radix_tree_insert(&extent_root->pinned_radix,
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blocknr, (void *)blocknr);
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BUG_ON(err);
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radix_tree_preload_end();
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}
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ret = del_item(extent_root, &path);
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if (ret)
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BUG();
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}
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release_path(extent_root, &path);
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return ret;
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}
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/*
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* insert all of the pending extents reserved during the original
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* allocation. (CTREE_EXTENT_PENDING). Returns zero if it all worked out
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*/
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static int insert_pending_extents(struct ctree_root *extent_root)
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{
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int ret;
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struct key key;
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struct extent_item item;
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struct tree_buffer *gang[4];
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int i;
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// FIXME -ENOSPC
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item.owner = extent_root->node->node.header.parentid;
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item.refs = 1;
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while(1) {
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ret = radix_tree_gang_lookup_tag(&extent_root->cache_radix,
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(void **)gang, 0,
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ARRAY_SIZE(gang),
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CTREE_EXTENT_PENDING_ADD);
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if (!ret)
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break;
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for (i = 0; i < ret; i++) {
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key.objectid = gang[i]->blocknr;
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key.flags = 0;
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key.offset = 1;
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ret = insert_item(extent_root, &key, &item,
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sizeof(item));
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if (ret) {
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printf("%Lu already in tree\n", key.objectid);
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print_tree(extent_root, extent_root->node);
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BUG();
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// FIXME undo it and return sane
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return ret;
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}
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radix_tree_tag_clear(&extent_root->cache_radix,
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gang[i]->blocknr,
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CTREE_EXTENT_PENDING_ADD);
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tree_block_release(extent_root, gang[i]);
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}
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}
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return 0;
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}
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/*
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* find all the blocks marked as pending in the radix tree and remove
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* them from the extent map
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@ -55,78 +194,73 @@ int btrfs_inc_ref(struct ctree_root *root, struct tree_buffer *buf)
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static int del_pending_extents(struct ctree_root *extent_root)
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{
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int ret;
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struct key key;
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struct tree_buffer *gang[4];
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int i;
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struct ctree_path path;
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while(1) {
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ret = radix_tree_gang_lookup_tag(&extent_root->cache_radix,
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(void **)gang, 0,
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ARRAY_SIZE(gang),
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CTREE_EXTENT_PENDING);
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CTREE_EXTENT_PENDING_DEL);
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if (!ret)
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break;
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for (i = 0; i < ret; i++) {
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key.objectid = gang[i]->blocknr;
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key.flags = 0;
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key.offset = 1;
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init_path(&path);
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ret = search_slot(extent_root, &key, &path, -1, 1);
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if (ret) {
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print_tree(extent_root, extent_root->node);
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printf("unable to find %Lu\n", key.objectid);
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BUG();
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// FIXME undo it and return sane
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return ret;
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}
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ret = del_item(extent_root, &path);
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if (ret) {
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BUG();
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return ret;
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}
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release_path(extent_root, &path);
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ret = __free_extent(extent_root, gang[i]->blocknr, 1);
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radix_tree_tag_clear(&extent_root->cache_radix,
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gang[i]->blocknr,
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CTREE_EXTENT_PENDING);
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CTREE_EXTENT_PENDING_DEL);
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tree_block_release(extent_root, gang[i]);
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}
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}
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return 0;
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}
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static int run_pending(struct ctree_root *extent_root)
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{
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while(radix_tree_tagged(&extent_root->cache_radix,
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CTREE_EXTENT_PENDING_DEL) ||
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radix_tree_tagged(&extent_root->cache_radix,
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CTREE_EXTENT_PENDING_ADD)) {
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insert_pending_extents(extent_root);
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del_pending_extents(extent_root);
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}
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return 0;
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}
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/*
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* remove an extent from the root, returns 0 on success
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*/
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int free_extent(struct ctree_root *root, u64 blocknr, u64 num_blocks)
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{
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struct ctree_path path;
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struct key key;
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struct ctree_root *extent_root = root->extent_root;
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struct tree_buffer *t;
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int pending_ret;
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int ret;
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if (root == extent_root) {
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t = find_tree_block(root, blocknr);
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if (radix_tree_tag_get(&root->cache_radix, blocknr,
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CTREE_EXTENT_PENDING_ADD)) {
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radix_tree_tag_clear(&root->cache_radix,
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blocknr,
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CTREE_EXTENT_PENDING_ADD);
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/* once for us */
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tree_block_release(root, t);
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/* once for the pending add */
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tree_block_release(root, t);
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} else {
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radix_tree_tag_set(&root->cache_radix, blocknr,
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CTREE_EXTENT_PENDING_DEL);
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}
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return 0;
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}
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key.objectid = blocknr;
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key.flags = 0;
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key.offset = num_blocks;
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if (root == extent_root) {
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t = read_tree_block(root, key.objectid);
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radix_tree_tag_set(&root->cache_radix, key.objectid,
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CTREE_EXTENT_PENDING);
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return 0;
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}
|
||||
init_path(&path);
|
||||
ret = search_slot(extent_root, &key, &path, -1, 1);
|
||||
if (ret) {
|
||||
print_tree(extent_root, extent_root->node);
|
||||
printf("failed to find %Lu\n", key.objectid);
|
||||
BUG();
|
||||
}
|
||||
ret = del_item(extent_root, &path);
|
||||
if (ret)
|
||||
BUG();
|
||||
release_path(extent_root, &path);
|
||||
pending_ret = del_pending_extents(root->extent_root);
|
||||
ret = __free_extent(root, blocknr, num_blocks);
|
||||
pending_ret = run_pending(root->extent_root);
|
||||
return ret ? ret : pending_ret;
|
||||
}
|
||||
|
||||
|
@ -203,7 +337,7 @@ static int find_free_extent(struct ctree_root *orig_root, u64 num_blocks,
|
|||
*/
|
||||
release_path(root, &path);
|
||||
BUG_ON(ins->objectid < search_start);
|
||||
if (orig_root->extent_root == orig_root) {
|
||||
if (1 || orig_root->extent_root == orig_root) {
|
||||
BUG_ON(num_blocks != 1);
|
||||
if ((root->current_insert.objectid <= ins->objectid &&
|
||||
root->current_insert.objectid +
|
||||
|
@ -211,8 +345,9 @@ static int find_free_extent(struct ctree_root *orig_root, u64 num_blocks,
|
|||
(root->current_insert.objectid > ins->objectid &&
|
||||
root->current_insert.objectid <= ins->objectid +
|
||||
ins->offset) ||
|
||||
radix_tree_lookup(&root->pinned_radix, ins->objectid) ||
|
||||
radix_tree_tag_get(&root->cache_radix, ins->objectid,
|
||||
CTREE_EXTENT_PENDING)) {
|
||||
CTREE_EXTENT_PENDING_ADD)) {
|
||||
search_start = ins->objectid + 1;
|
||||
goto check_failed;
|
||||
}
|
||||
|
@ -225,51 +360,6 @@ static int find_free_extent(struct ctree_root *orig_root, u64 num_blocks,
|
|||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* insert all of the pending extents reserved during the original
|
||||
* allocation. (CTREE_EXTENT_PENDING). Returns zero if it all worked out
|
||||
*/
|
||||
static int insert_pending_extents(struct ctree_root *extent_root)
|
||||
{
|
||||
int ret;
|
||||
struct key key;
|
||||
struct extent_item item;
|
||||
struct tree_buffer *gang[4];
|
||||
int i;
|
||||
|
||||
// FIXME -ENOSPC
|
||||
item.refs = 1;
|
||||
item.owner = extent_root->node->node.header.parentid;
|
||||
while(1) {
|
||||
ret = radix_tree_gang_lookup_tag(&extent_root->cache_radix,
|
||||
(void **)gang, 0,
|
||||
ARRAY_SIZE(gang),
|
||||
CTREE_EXTENT_PENDING);
|
||||
if (!ret)
|
||||
break;
|
||||
for (i = 0; i < ret; i++) {
|
||||
key.objectid = gang[i]->blocknr;
|
||||
key.flags = 0;
|
||||
key.offset = 1;
|
||||
ret = insert_item(extent_root, &key, &item,
|
||||
sizeof(item));
|
||||
if (ret) {
|
||||
printf("%Lu already in tree\n", key.objectid);
|
||||
print_tree(extent_root, extent_root->node);
|
||||
BUG();
|
||||
// FIXME undo it and return sane
|
||||
return ret;
|
||||
}
|
||||
radix_tree_tag_clear(&extent_root->cache_radix,
|
||||
gang[i]->blocknr,
|
||||
CTREE_EXTENT_PENDING);
|
||||
printf("%Lu is not pending\n", gang[i]->blocknr);
|
||||
tree_block_release(extent_root, gang[i]);
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* finds a free extent and does all the dirty work required for allocation
|
||||
* returns the key for the extent through ins, and a tree buffer for
|
||||
|
@ -296,7 +386,7 @@ int alloc_extent(struct ctree_root *root, u64 num_blocks, u64 search_start,
|
|||
sizeof(extent_item));
|
||||
memset(&root->extent_root->current_insert, 0,
|
||||
sizeof(struct key));
|
||||
pending_ret = insert_pending_extents(root->extent_root);
|
||||
pending_ret = run_pending(root->extent_root);
|
||||
if (ret)
|
||||
return ret;
|
||||
if (pending_ret)
|
||||
|
@ -309,9 +399,8 @@ int alloc_extent(struct ctree_root *root, u64 num_blocks, u64 search_start,
|
|||
BUG_ON(ins->offset != 1);
|
||||
*buf = find_tree_block(root, ins->objectid);
|
||||
BUG_ON(!*buf);
|
||||
printf("%Lu is pending\n", ins->objectid);
|
||||
radix_tree_tag_set(&root->cache_radix, ins->objectid,
|
||||
CTREE_EXTENT_PENDING);
|
||||
CTREE_EXTENT_PENDING_ADD);
|
||||
(*buf)->count++;
|
||||
dirty_tree_block(root, *buf);
|
||||
return 0;
|
||||
|
@ -331,13 +420,41 @@ struct tree_buffer *alloc_free_block(struct ctree_root *root)
|
|||
ret = alloc_extent(root, 1, 0, (unsigned long)-1,
|
||||
root->node->node.header.parentid,
|
||||
&ins, &buf);
|
||||
|
||||
if (ret) {
|
||||
BUG();
|
||||
return NULL;
|
||||
}
|
||||
if (root != root->extent_root)
|
||||
BUG_ON(radix_tree_tag_get(&root->extent_root->cache_radix,
|
||||
buf->blocknr, CTREE_EXTENT_PENDING));
|
||||
buf->blocknr,
|
||||
CTREE_EXTENT_PENDING_ADD));
|
||||
return buf;
|
||||
}
|
||||
|
||||
int btrfs_drop_snapshot(struct ctree_root *root, struct tree_buffer *snap)
|
||||
{
|
||||
int ret;
|
||||
int level;
|
||||
int refs;
|
||||
u64 blocknr = snap->blocknr;
|
||||
|
||||
level = node_level(snap->node.header.flags);
|
||||
ret = lookup_block_ref(root, snap->blocknr, &refs);
|
||||
BUG_ON(ret);
|
||||
if (refs == 1 && level != 0) {
|
||||
struct node *n = &snap->node;
|
||||
struct tree_buffer *b;
|
||||
int i;
|
||||
for (i = 0; i < n->header.nritems; i++) {
|
||||
b = read_tree_block(root, n->blockptrs[i]);
|
||||
/* FIXME, don't recurse here */
|
||||
ret = btrfs_drop_snapshot(root, b);
|
||||
BUG_ON(ret);
|
||||
tree_block_release(root, b);
|
||||
}
|
||||
}
|
||||
ret = free_extent(root, blocknr, 1);
|
||||
BUG_ON(ret);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
@ -21,9 +21,11 @@ void print_leaf(struct leaf *l)
|
|||
item->key.objectid, item->key.flags, item->key.offset,
|
||||
item->offset, item->size);
|
||||
fflush(stdout);
|
||||
printf("\t\titem data %.*s\n", item->size, l->data+item->offset);
|
||||
printf("\t\titem data %.*s\n", item->size,
|
||||
l->data+item->offset);
|
||||
ei = (struct extent_item *)(l->data + item->offset);
|
||||
printf("\t\textent data %u %Lu\n", ei->refs, ei->owner);
|
||||
printf("\t\textent data refs %u owner %Lu\n", ei->refs,
|
||||
ei->owner);
|
||||
fflush(stdout);
|
||||
}
|
||||
}
|
||||
|
|
|
@ -19,7 +19,7 @@ int main(int ac, char **av) {
|
|||
int i;
|
||||
int num;
|
||||
int ret;
|
||||
int run_size = 1024;
|
||||
int run_size = 100000;
|
||||
int max_key = 100000000;
|
||||
int tree_size = 0;
|
||||
struct ctree_path path;
|
||||
|
@ -44,9 +44,9 @@ int main(int ac, char **av) {
|
|||
if (!ret)
|
||||
tree_size++;
|
||||
free(buf);
|
||||
|
||||
}
|
||||
write_ctree_super(root, &super);
|
||||
close_ctree(root);
|
||||
close_ctree(root, &super);
|
||||
|
||||
root = open_ctree("dbfile", &super);
|
||||
printf("starting search\n");
|
||||
|
@ -65,8 +65,7 @@ int main(int ac, char **av) {
|
|||
}
|
||||
release_path(root, &path);
|
||||
}
|
||||
write_ctree_super(root, &super);
|
||||
close_ctree(root);
|
||||
close_ctree(root, &super);
|
||||
root = open_ctree("dbfile", &super);
|
||||
printf("node %p level %d total ptrs %d free spc %lu\n", root->node,
|
||||
node_level(root->node->node.header.flags),
|
||||
|
@ -90,8 +89,7 @@ int main(int ac, char **av) {
|
|||
}
|
||||
release_path(root, &path);
|
||||
}
|
||||
write_ctree_super(root, &super);
|
||||
close_ctree(root);
|
||||
close_ctree(root, &super);
|
||||
root = open_ctree("dbfile", &super);
|
||||
srand(128);
|
||||
for (i = 0; i < run_size; i++) {
|
||||
|
@ -106,8 +104,7 @@ int main(int ac, char **av) {
|
|||
tree_size++;
|
||||
free(buf);
|
||||
}
|
||||
write_ctree_super(root, &super);
|
||||
close_ctree(root);
|
||||
close_ctree(root, &super);
|
||||
root = open_ctree("dbfile", &super);
|
||||
srand(128);
|
||||
printf("starting search2\n");
|
||||
|
@ -156,10 +153,17 @@ int main(int ac, char **av) {
|
|||
}
|
||||
release_path(root, &path);
|
||||
}
|
||||
/*
|
||||
printf("previous tree:\n");
|
||||
print_tree(root, root->commit_root);
|
||||
printf("map before commit\n");
|
||||
print_tree(root->extent_root, root->extent_root->node);
|
||||
*/
|
||||
commit_transaction(root, &super);
|
||||
printf("tree size is now %d\n", tree_size);
|
||||
printf("root %p commit root %p\n", root->node, root->commit_root);
|
||||
printf("map tree\n");
|
||||
print_tree(root->extent_root, root->extent_root->node);
|
||||
write_ctree_super(root, &super);
|
||||
close_ctree(root);
|
||||
close_ctree(root, &super);
|
||||
return 0;
|
||||
}
|
||||
|
|
|
@ -8,6 +8,7 @@
|
|||
#include "print-tree.h"
|
||||
|
||||
int keep_running = 1;
|
||||
struct ctree_super_block super;
|
||||
|
||||
static int setup_key(struct radix_tree_root *root, struct key *key, int exists)
|
||||
{
|
||||
|
@ -59,11 +60,6 @@ static int ins_one(struct ctree_root *root, struct radix_tree_root *radix)
|
|||
return -1;
|
||||
}
|
||||
|
||||
static int run_commit(struct ctree_root *root, struct radix_tree_root *radix)
|
||||
{
|
||||
return commit_transaction(root);
|
||||
}
|
||||
|
||||
static int insert_dup(struct ctree_root *root, struct radix_tree_root *radix)
|
||||
{
|
||||
struct ctree_path path;
|
||||
|
@ -210,7 +206,7 @@ static int fill_tree(struct ctree_root *root, struct radix_tree_root *radix,
|
|||
goto out;
|
||||
}
|
||||
if (i % 1000 == 0) {
|
||||
ret = commit_transaction(root);
|
||||
ret = commit_transaction(root, &super);
|
||||
if (ret) {
|
||||
fprintf(stderr, "fill commit failed\n");
|
||||
return ret;
|
||||
|
@ -229,7 +225,7 @@ static int fill_tree(struct ctree_root *root, struct radix_tree_root *radix,
|
|||
static int bulk_op(struct ctree_root *root, struct radix_tree_root *radix)
|
||||
{
|
||||
int ret;
|
||||
int nr = rand() % 20000;
|
||||
int nr = rand() % 5000;
|
||||
static int run_nr = 0;
|
||||
|
||||
/* do the bulk op much less frequently */
|
||||
|
@ -247,7 +243,7 @@ static int bulk_op(struct ctree_root *root, struct radix_tree_root *radix)
|
|||
|
||||
int (*ops[])(struct ctree_root *root, struct radix_tree_root *radix) =
|
||||
{ ins_one, insert_dup, del_one, lookup_item,
|
||||
lookup_enoent, bulk_op, run_commit };
|
||||
lookup_enoent, bulk_op };
|
||||
|
||||
static int fill_radix(struct ctree_root *root, struct radix_tree_root *radix)
|
||||
{
|
||||
|
@ -314,7 +310,6 @@ int print_usage(void)
|
|||
int main(int ac, char **av)
|
||||
{
|
||||
RADIX_TREE(radix, GFP_KERNEL);
|
||||
struct ctree_super_block super;
|
||||
struct ctree_root *root;
|
||||
int i;
|
||||
int ret;
|
||||
|
@ -365,8 +360,7 @@ int main(int ac, char **av)
|
|||
printf("open & close, root level %d nritems %d\n",
|
||||
node_level(root->node->node.header.flags),
|
||||
root->node->node.header.nritems);
|
||||
write_ctree_super(root, &super);
|
||||
close_ctree(root);
|
||||
close_ctree(root, &super);
|
||||
root = open_ctree("dbfile", &super);
|
||||
}
|
||||
while(count--) {
|
||||
|
@ -380,7 +374,7 @@ int main(int ac, char **av)
|
|||
err = ret;
|
||||
goto out;
|
||||
}
|
||||
if (ops[op] == bulk_op || ops[op] == run_commit)
|
||||
if (ops[op] == bulk_op)
|
||||
break;
|
||||
if (keep_running == 0) {
|
||||
err = 0;
|
||||
|
@ -389,8 +383,7 @@ int main(int ac, char **av)
|
|||
}
|
||||
}
|
||||
out:
|
||||
write_ctree_super(root, &super);
|
||||
close_ctree(root);
|
||||
close_ctree(root, &super);
|
||||
return err;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in New Issue