Btrfs: Allocator fix variety pack

* Force chunk allocation when find_free_extent has to do a full scan
* Record the max key at the start of defrag so it doesn't run forever
* Block groups might not be contiguous, make a forward search for the
  next block group in extent-tree.c
* Get rid of extra checks for total fs size
* Fix relocate_one_reference to avoid relocating the same file data block
  twice when referenced by an older transaction
* Use the open device count when allocating chunks so that we don't
  try to allocate from devices that don't exist

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 02e571e6ee62..1d404bde3cfa 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -363,7 +363,7 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
                         other = btrfs_node_blockptr(parent, i - 1);
                         close = close_blocks(blocknr, other, blocksize);
                 }
-                if (close && i < end_slot - 2) {
+                if (!close && i < end_slot - 2) {
                         other = btrfs_node_blockptr(parent, i + 1);
                         close = close_blocks(blocknr, other, blocksize);
                 }