Btrfs: Use balance_dirty_pages_nr on btree blocks
btrfs_btree_balance_dirty is changed to pass the number of pages dirtied for more accurate dirty throttling. This lets the VM make better decisions about when to force some writeback. Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
parent
7d7d6068be
commit
d3c2fdcf7b
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@ -666,7 +666,8 @@ void btrfs_block_release(struct btrfs_root *root, struct buffer_head *buf)
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brelse(buf);
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brelse(buf);
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}
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}
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void btrfs_btree_balance_dirty(struct btrfs_root *root)
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void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr)
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{
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{
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balance_dirty_pages_ratelimited(root->fs_info->btree_inode->i_mapping);
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balance_dirty_pages_ratelimited_nr(
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root->fs_info->btree_inode->i_mapping, nr);
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}
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}
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@ -80,7 +80,7 @@ int btrfs_insert_dev_radix(struct btrfs_root *root,
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u64 num_blocks);
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u64 num_blocks);
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int btrfs_map_bh_to_logical(struct btrfs_root *root, struct buffer_head *bh,
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int btrfs_map_bh_to_logical(struct btrfs_root *root, struct buffer_head *bh,
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u64 logical);
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u64 logical);
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void btrfs_btree_balance_dirty(struct btrfs_root *root);
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void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr);
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int btrfs_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root);
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int btrfs_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root);
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void btrfs_mark_buffer_dirty(struct buffer_head *bh);
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void btrfs_mark_buffer_dirty(struct buffer_head *bh);
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#endif
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#endif
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@ -1275,6 +1275,7 @@ struct buffer_head *btrfs_alloc_free_block(struct btrfs_trans_handle *trans,
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set_buffer_checked(buf);
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set_buffer_checked(buf);
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set_buffer_defrag(buf);
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set_buffer_defrag(buf);
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set_radix_bit(&trans->transaction->dirty_pages, buf->b_page->index);
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set_radix_bit(&trans->transaction->dirty_pages, buf->b_page->index);
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trans->blocks_used++;
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return buf;
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return buf;
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}
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}
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@ -655,7 +655,7 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf,
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num_written += write_bytes;
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num_written += write_bytes;
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balance_dirty_pages_ratelimited_nr(inode->i_mapping, num_pages);
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balance_dirty_pages_ratelimited_nr(inode->i_mapping, num_pages);
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, 1);
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cond_resched();
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cond_resched();
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}
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}
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mutex_unlock(&inode->i_mutex);
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mutex_unlock(&inode->i_mutex);
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@ -387,15 +387,17 @@ static int btrfs_unlink(struct inode *dir, struct dentry *dentry)
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struct btrfs_root *root;
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struct btrfs_root *root;
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struct btrfs_trans_handle *trans;
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struct btrfs_trans_handle *trans;
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int ret;
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int ret;
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unsigned long nr;
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root = BTRFS_I(dir)->root;
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root = BTRFS_I(dir)->root;
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mutex_lock(&root->fs_info->fs_mutex);
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mutex_lock(&root->fs_info->fs_mutex);
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trans = btrfs_start_transaction(root, 1);
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trans = btrfs_start_transaction(root, 1);
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btrfs_set_trans_block_group(trans, dir);
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btrfs_set_trans_block_group(trans, dir);
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ret = btrfs_unlink_trans(trans, root, dir, dentry);
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ret = btrfs_unlink_trans(trans, root, dir, dentry);
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nr = trans->blocks_used;
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btrfs_end_transaction(trans, root);
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btrfs_end_transaction(trans, root);
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mutex_unlock(&root->fs_info->fs_mutex);
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mutex_unlock(&root->fs_info->fs_mutex);
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, nr);
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return ret;
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return ret;
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}
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}
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@ -412,6 +414,7 @@ static int btrfs_rmdir(struct inode *dir, struct dentry *dentry)
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int found_type;
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int found_type;
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struct btrfs_leaf *leaf;
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struct btrfs_leaf *leaf;
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char *goodnames = "..";
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char *goodnames = "..";
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unsigned long nr;
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path = btrfs_alloc_path();
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path = btrfs_alloc_path();
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BUG_ON(!path);
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BUG_ON(!path);
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@ -467,8 +470,9 @@ out:
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btrfs_release_path(root, path);
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btrfs_release_path(root, path);
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btrfs_free_path(path);
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btrfs_free_path(path);
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mutex_unlock(&root->fs_info->fs_mutex);
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mutex_unlock(&root->fs_info->fs_mutex);
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nr = trans->blocks_used;
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ret = btrfs_end_transaction(trans, root);
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ret = btrfs_end_transaction(trans, root);
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, nr);
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if (ret && !err)
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if (ret && !err)
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err = ret;
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err = ret;
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return err;
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return err;
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@ -764,6 +768,7 @@ void btrfs_delete_inode(struct inode *inode)
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{
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{
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struct btrfs_trans_handle *trans;
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struct btrfs_trans_handle *trans;
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struct btrfs_root *root = BTRFS_I(inode)->root;
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struct btrfs_root *root = BTRFS_I(inode)->root;
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unsigned long nr;
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int ret;
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int ret;
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truncate_inode_pages(&inode->i_data, 0);
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truncate_inode_pages(&inode->i_data, 0);
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@ -780,15 +785,17 @@ void btrfs_delete_inode(struct inode *inode)
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ret = btrfs_free_inode(trans, root, inode);
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ret = btrfs_free_inode(trans, root, inode);
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if (ret)
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if (ret)
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goto no_delete_lock;
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goto no_delete_lock;
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nr = trans->blocks_used;
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btrfs_end_transaction(trans, root);
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btrfs_end_transaction(trans, root);
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mutex_unlock(&root->fs_info->fs_mutex);
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mutex_unlock(&root->fs_info->fs_mutex);
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, nr);
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return;
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return;
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no_delete_lock:
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no_delete_lock:
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nr = trans->blocks_used;
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btrfs_end_transaction(trans, root);
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btrfs_end_transaction(trans, root);
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mutex_unlock(&root->fs_info->fs_mutex);
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mutex_unlock(&root->fs_info->fs_mutex);
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, nr);
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no_delete:
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no_delete:
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clear_inode(inode);
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clear_inode(inode);
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}
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}
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@ -1165,6 +1172,7 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
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int err;
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int err;
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int drop_inode = 0;
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int drop_inode = 0;
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u64 objectid;
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u64 objectid;
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unsigned long nr;
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if (!new_valid_dev(rdev))
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if (!new_valid_dev(rdev))
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return -EINVAL;
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return -EINVAL;
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@ -1198,6 +1206,7 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
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btrfs_update_inode_block_group(trans, inode);
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btrfs_update_inode_block_group(trans, inode);
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btrfs_update_inode_block_group(trans, dir);
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btrfs_update_inode_block_group(trans, dir);
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out_unlock:
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out_unlock:
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nr = trans->blocks_used;
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btrfs_end_transaction(trans, root);
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btrfs_end_transaction(trans, root);
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mutex_unlock(&root->fs_info->fs_mutex);
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mutex_unlock(&root->fs_info->fs_mutex);
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@ -1205,7 +1214,7 @@ out_unlock:
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inode_dec_link_count(inode);
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inode_dec_link_count(inode);
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iput(inode);
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iput(inode);
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}
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}
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, nr);
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return err;
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return err;
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}
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}
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@ -1217,6 +1226,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
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struct inode *inode;
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struct inode *inode;
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int err;
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int err;
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int drop_inode = 0;
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int drop_inode = 0;
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unsigned long nr;
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u64 objectid;
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u64 objectid;
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mutex_lock(&root->fs_info->fs_mutex);
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mutex_lock(&root->fs_info->fs_mutex);
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@ -1251,6 +1261,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
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btrfs_update_inode_block_group(trans, inode);
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btrfs_update_inode_block_group(trans, inode);
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btrfs_update_inode_block_group(trans, dir);
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btrfs_update_inode_block_group(trans, dir);
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out_unlock:
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out_unlock:
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nr = trans->blocks_used;
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btrfs_end_transaction(trans, root);
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btrfs_end_transaction(trans, root);
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mutex_unlock(&root->fs_info->fs_mutex);
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mutex_unlock(&root->fs_info->fs_mutex);
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@ -1258,7 +1269,7 @@ out_unlock:
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inode_dec_link_count(inode);
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inode_dec_link_count(inode);
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iput(inode);
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iput(inode);
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}
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}
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, nr);
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return err;
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return err;
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}
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}
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@ -1268,6 +1279,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
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struct btrfs_trans_handle *trans;
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struct btrfs_trans_handle *trans;
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struct btrfs_root *root = BTRFS_I(dir)->root;
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struct btrfs_root *root = BTRFS_I(dir)->root;
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struct inode *inode = old_dentry->d_inode;
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struct inode *inode = old_dentry->d_inode;
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unsigned long nr;
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int err;
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int err;
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int drop_inode = 0;
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int drop_inode = 0;
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@ -1288,6 +1300,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
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if (err)
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if (err)
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drop_inode = 1;
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drop_inode = 1;
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nr = trans->blocks_used;
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btrfs_end_transaction(trans, root);
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btrfs_end_transaction(trans, root);
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mutex_unlock(&root->fs_info->fs_mutex);
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mutex_unlock(&root->fs_info->fs_mutex);
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@ -1295,7 +1308,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
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inode_dec_link_count(inode);
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inode_dec_link_count(inode);
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iput(inode);
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iput(inode);
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}
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}
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, nr);
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return err;
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return err;
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}
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}
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@ -1336,6 +1349,7 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
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int err = 0;
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int err = 0;
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int drop_on_err = 0;
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int drop_on_err = 0;
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u64 objectid;
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u64 objectid;
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unsigned long nr = 1;
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mutex_lock(&root->fs_info->fs_mutex);
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mutex_lock(&root->fs_info->fs_mutex);
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trans = btrfs_start_transaction(root, 1);
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trans = btrfs_start_transaction(root, 1);
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@ -1380,12 +1394,13 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
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btrfs_update_inode_block_group(trans, dir);
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btrfs_update_inode_block_group(trans, dir);
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out_fail:
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out_fail:
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nr = trans->blocks_used;
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btrfs_end_transaction(trans, root);
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btrfs_end_transaction(trans, root);
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out_unlock:
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out_unlock:
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mutex_unlock(&root->fs_info->fs_mutex);
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mutex_unlock(&root->fs_info->fs_mutex);
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if (drop_on_err)
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if (drop_on_err)
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iput(inode);
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iput(inode);
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, nr);
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return err;
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return err;
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}
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}
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@ -1682,6 +1697,7 @@ static void btrfs_truncate(struct inode *inode)
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struct btrfs_root *root = BTRFS_I(inode)->root;
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struct btrfs_root *root = BTRFS_I(inode)->root;
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int ret;
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int ret;
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struct btrfs_trans_handle *trans;
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struct btrfs_trans_handle *trans;
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unsigned long nr;
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if (!S_ISREG(inode->i_mode))
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if (!S_ISREG(inode->i_mode))
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return;
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return;
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@ -1697,10 +1713,11 @@ static void btrfs_truncate(struct inode *inode)
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/* FIXME, add redo link to tree so we don't leak on crash */
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/* FIXME, add redo link to tree so we don't leak on crash */
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ret = btrfs_truncate_in_trans(trans, root, inode);
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ret = btrfs_truncate_in_trans(trans, root, inode);
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btrfs_update_inode(trans, root, inode);
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btrfs_update_inode(trans, root, inode);
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nr = trans->blocks_used;
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ret = btrfs_end_transaction(trans, root);
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ret = btrfs_end_transaction(trans, root);
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BUG_ON(ret);
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BUG_ON(ret);
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mutex_unlock(&root->fs_info->fs_mutex);
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mutex_unlock(&root->fs_info->fs_mutex);
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, nr);
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}
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}
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int btrfs_commit_write(struct file *file, struct page *page,
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int btrfs_commit_write(struct file *file, struct page *page,
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@ -1725,6 +1742,7 @@ static int create_subvol(struct btrfs_root *root, char *name, int namelen)
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int err;
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int err;
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u64 objectid;
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u64 objectid;
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u64 new_dirid = BTRFS_FIRST_FREE_OBJECTID;
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u64 new_dirid = BTRFS_FIRST_FREE_OBJECTID;
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unsigned long nr = 1;
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mutex_lock(&root->fs_info->fs_mutex);
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mutex_lock(&root->fs_info->fs_mutex);
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trans = btrfs_start_transaction(root, 1);
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trans = btrfs_start_transaction(root, 1);
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@ -1814,12 +1832,13 @@ static int create_subvol(struct btrfs_root *root, char *name, int namelen)
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if (ret)
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if (ret)
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goto fail;
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goto fail;
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fail:
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fail:
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nr = trans->blocks_used;
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err = btrfs_commit_transaction(trans, root);
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err = btrfs_commit_transaction(trans, root);
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if (err && !ret)
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if (err && !ret)
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ret = err;
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ret = err;
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fail_commit:
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fail_commit:
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mutex_unlock(&root->fs_info->fs_mutex);
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mutex_unlock(&root->fs_info->fs_mutex);
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, nr);
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return ret;
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return ret;
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}
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}
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@ -1832,6 +1851,7 @@ static int create_snapshot(struct btrfs_root *root, char *name, int namelen)
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int ret;
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int ret;
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int err;
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int err;
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u64 objectid;
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u64 objectid;
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unsigned long nr;
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if (!root->ref_cows)
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if (!root->ref_cows)
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return -EINVAL;
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return -EINVAL;
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@ -1884,12 +1904,13 @@ static int create_snapshot(struct btrfs_root *root, char *name, int namelen)
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if (ret)
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if (ret)
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goto fail;
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goto fail;
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fail:
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fail:
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nr = trans->blocks_used;
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err = btrfs_commit_transaction(trans, root);
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err = btrfs_commit_transaction(trans, root);
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if (err && !ret)
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if (err && !ret)
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ret = err;
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ret = err;
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mutex_unlock(&root->fs_info->fs_mutex);
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mutex_unlock(&root->fs_info->fs_mutex);
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up_write(&root->snap_sem);
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up_write(&root->snap_sem);
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btrfs_btree_balance_dirty(root);
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btrfs_btree_balance_dirty(root, nr);
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return ret;
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return ret;
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}
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}
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@ -2240,6 +2261,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
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int datasize;
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int datasize;
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char *ptr;
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char *ptr;
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struct btrfs_file_extent_item *ei;
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struct btrfs_file_extent_item *ei;
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unsigned long nr;
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name_len = strlen(symname) + 1;
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name_len = strlen(symname) + 1;
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if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(root))
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if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(root))
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@ -2309,13 +2331,14 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
|
||||||
drop_inode = 1;
|
drop_inode = 1;
|
||||||
|
|
||||||
out_unlock:
|
out_unlock:
|
||||||
|
nr = trans->blocks_used;
|
||||||
btrfs_end_transaction(trans, root);
|
btrfs_end_transaction(trans, root);
|
||||||
mutex_unlock(&root->fs_info->fs_mutex);
|
mutex_unlock(&root->fs_info->fs_mutex);
|
||||||
if (drop_inode) {
|
if (drop_inode) {
|
||||||
inode_dec_link_count(inode);
|
inode_dec_link_count(inode);
|
||||||
iput(inode);
|
iput(inode);
|
||||||
}
|
}
|
||||||
btrfs_btree_balance_dirty(root);
|
btrfs_btree_balance_dirty(root, nr);
|
||||||
return err;
|
return err;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
@ -18,6 +18,7 @@
|
||||||
|
|
||||||
#include <linux/fs.h>
|
#include <linux/fs.h>
|
||||||
#include <linux/sched.h>
|
#include <linux/sched.h>
|
||||||
|
#include <linux/writeback.h>
|
||||||
#include "ctree.h"
|
#include "ctree.h"
|
||||||
#include "disk-io.h"
|
#include "disk-io.h"
|
||||||
#include "transaction.h"
|
#include "transaction.h"
|
||||||
|
@ -340,6 +341,7 @@ int btrfs_defrag_root(struct btrfs_root *root, int cacheonly)
|
||||||
struct btrfs_fs_info *info = root->fs_info;
|
struct btrfs_fs_info *info = root->fs_info;
|
||||||
int ret;
|
int ret;
|
||||||
struct btrfs_trans_handle *trans;
|
struct btrfs_trans_handle *trans;
|
||||||
|
unsigned long nr;
|
||||||
|
|
||||||
if (root->defrag_running)
|
if (root->defrag_running)
|
||||||
return 0;
|
return 0;
|
||||||
|
@ -348,10 +350,11 @@ int btrfs_defrag_root(struct btrfs_root *root, int cacheonly)
|
||||||
while (1) {
|
while (1) {
|
||||||
root->defrag_running = 1;
|
root->defrag_running = 1;
|
||||||
ret = btrfs_defrag_leaves(trans, root, cacheonly);
|
ret = btrfs_defrag_leaves(trans, root, cacheonly);
|
||||||
|
nr = trans->blocks_used;
|
||||||
btrfs_end_transaction(trans, root);
|
btrfs_end_transaction(trans, root);
|
||||||
mutex_unlock(&info->fs_mutex);
|
mutex_unlock(&info->fs_mutex);
|
||||||
|
|
||||||
btrfs_btree_balance_dirty(root);
|
btrfs_btree_balance_dirty(info->tree_root, nr);
|
||||||
cond_resched();
|
cond_resched();
|
||||||
|
|
||||||
mutex_lock(&info->fs_mutex);
|
mutex_lock(&info->fs_mutex);
|
||||||
|
@ -398,6 +401,7 @@ static int drop_dirty_roots(struct btrfs_root *tree_root,
|
||||||
{
|
{
|
||||||
struct dirty_root *dirty;
|
struct dirty_root *dirty;
|
||||||
struct btrfs_trans_handle *trans;
|
struct btrfs_trans_handle *trans;
|
||||||
|
unsigned long nr;
|
||||||
u64 num_blocks;
|
u64 num_blocks;
|
||||||
u64 blocks_used;
|
u64 blocks_used;
|
||||||
int ret = 0;
|
int ret = 0;
|
||||||
|
@ -426,11 +430,11 @@ static int drop_dirty_roots(struct btrfs_root *tree_root,
|
||||||
&dirty->root->root_item);
|
&dirty->root->root_item);
|
||||||
if (err)
|
if (err)
|
||||||
ret = err;
|
ret = err;
|
||||||
|
nr = trans->blocks_used;
|
||||||
ret = btrfs_end_transaction(trans, tree_root);
|
ret = btrfs_end_transaction(trans, tree_root);
|
||||||
BUG_ON(ret);
|
BUG_ON(ret);
|
||||||
mutex_unlock(&tree_root->fs_info->fs_mutex);
|
mutex_unlock(&tree_root->fs_info->fs_mutex);
|
||||||
|
btrfs_btree_balance_dirty(tree_root, nr);
|
||||||
btrfs_btree_balance_dirty(tree_root);
|
|
||||||
schedule();
|
schedule();
|
||||||
|
|
||||||
mutex_lock(&tree_root->fs_info->fs_mutex);
|
mutex_lock(&tree_root->fs_info->fs_mutex);
|
||||||
|
@ -449,13 +453,15 @@ static int drop_dirty_roots(struct btrfs_root *tree_root,
|
||||||
BUG();
|
BUG();
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
nr = trans->blocks_used;
|
||||||
ret = btrfs_end_transaction(trans, tree_root);
|
ret = btrfs_end_transaction(trans, tree_root);
|
||||||
BUG_ON(ret);
|
BUG_ON(ret);
|
||||||
|
|
||||||
kfree(dirty->root);
|
kfree(dirty->root);
|
||||||
kfree(dirty);
|
kfree(dirty);
|
||||||
mutex_unlock(&tree_root->fs_info->fs_mutex);
|
mutex_unlock(&tree_root->fs_info->fs_mutex);
|
||||||
btrfs_btree_balance_dirty(tree_root);
|
|
||||||
|
btrfs_btree_balance_dirty(tree_root, nr);
|
||||||
schedule();
|
schedule();
|
||||||
}
|
}
|
||||||
return ret;
|
return ret;
|
||||||
|
|
Loading…
Reference in a new issue