diff options
| author | Ingo Molnar <mingo@elte.hu> | 2011-04-01 21:14:04 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-04-01 21:14:04 +0200 |
| commit | 5679027e74126e0dfc860869b0e7ceab1dd06318 (patch) | |
| tree | 9a18b1a2f53be3bad8c9e4db01617fb51f067f64 /fs/btrfs/relocation.c | |
| parent | ccd0d44fad38dc1bb4b26dcc7a30e9f2c3b36870 (diff) | |
| parent | a4dd99250dc49031e6a92a895dbcc230a4832083 (diff) | |
Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu into core/urgent
Diffstat (limited to 'fs/btrfs/relocation.c')
| -rw-r--r-- | fs/btrfs/relocation.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index 31ade5802ae..58250e09eb0 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -1724,6 +1724,7 @@ again: eb = read_tree_block(dest, old_bytenr, blocksize, old_ptr_gen); + BUG_ON(!eb); btrfs_tree_lock(eb); if (cow) { ret = btrfs_cow_block(trans, dest, eb, parent, @@ -2513,6 +2514,10 @@ static int do_relocation(struct btrfs_trans_handle *trans, blocksize = btrfs_level_size(root, node->level); generation = btrfs_node_ptr_generation(upper->eb, slot); eb = read_tree_block(root, bytenr, blocksize, generation); + if (!eb) { + err = -EIO; + goto next; + } btrfs_tree_lock(eb); btrfs_set_lock_blocking(eb); @@ -2670,6 +2675,7 @@ static int get_tree_block_key(struct reloc_control *rc, BUG_ON(block->key_ready); eb = read_tree_block(rc->extent_root, block->bytenr, block->key.objectid, block->key.offset); + BUG_ON(!eb); WARN_ON(btrfs_header_level(eb) != block->level); if (block->level == 0) btrfs_item_key_to_cpu(eb, &block->key, 0); @@ -4209,7 +4215,7 @@ out: if (IS_ERR(fs_root)) err = PTR_ERR(fs_root); else - btrfs_orphan_cleanup(fs_root); + err = btrfs_orphan_cleanup(fs_root); } return err; } |