diff options
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 802a3113854f..8e838b1cc806 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1233,6 +1233,7 @@ static void __setup_root(u32 nodesize, u32 sectorsize, u32 stripesize, struct btrfs_root *root, struct btrfs_fs_info *fs_info, u64 objectid) { + bool dummy = test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state); root->node = NULL; root->commit_root = NULL; root->sectorsize = sectorsize; @@ -1287,14 +1288,14 @@ static void __setup_root(u32 nodesize, u32 sectorsize, u32 stripesize, root->log_transid = 0; root->log_transid_committed = -1; root->last_log_commit = 0; - if (fs_info) + if (!dummy) extent_io_tree_init(&root->dirty_log_pages, fs_info->btree_inode->i_mapping); memset(&root->root_key, 0, sizeof(root->root_key)); memset(&root->root_item, 0, sizeof(root->root_item)); memset(&root->defrag_progress, 0, sizeof(root->defrag_progress)); - if (fs_info) + if (!dummy) root->defrag_trans_start = fs_info->generation; else root->defrag_trans_start = 0; @@ -1315,15 +1316,19 @@ static struct btrfs_root *btrfs_alloc_root(struct btrfs_fs_info *fs_info, #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS /* Should only be used by the testing infrastructure */ -struct btrfs_root *btrfs_alloc_dummy_root(u32 sectorsize, u32 nodesize) +struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info, + u32 sectorsize, u32 nodesize) { struct btrfs_root *root; - root = btrfs_alloc_root(NULL, GFP_KERNEL); + if (!fs_info) + return ERR_PTR(-EINVAL); + + root = btrfs_alloc_root(fs_info, GFP_KERNEL); if (!root) return ERR_PTR(-ENOMEM); /* We don't use the stripesize in selftest, set it as sectorsize */ - __setup_root(nodesize, sectorsize, sectorsize, root, NULL, + __setup_root(nodesize, sectorsize, sectorsize, root, fs_info, BTRFS_ROOT_TREE_OBJECTID); set_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state); root->alloc_bytenr = 0; |