From a1897fddd28daf6b23d05a30dc2a18836f77f8e3 Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Thu, 27 Dec 2012 09:01:23 +0000 Subject: Btrfs: record first logical byte in memory This'd save us a rbtree search which may become expensive in large filesystem. Signed-off-by: Liu Bo Signed-off-by: Josef Bacik --- fs/btrfs/disk-io.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/btrfs/disk-io.c') diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 1db8a9938829..04f98e3ffd90 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2130,6 +2130,7 @@ int open_ctree(struct super_block *sb, spin_lock_init(&fs_info->block_group_cache_lock); fs_info->block_group_cache_tree = RB_ROOT; + fs_info->first_logical_byte = (u64)-1; extent_io_tree_init(&fs_info->freed_extents[0], fs_info->btree_inode->i_mapping); -- cgit v1.2.3