Btrfs: use a dedicated inode num for root root dir

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2007-04-11 08:59:20 -04:00 committed by David Woodhouse
parent 2d13d8d065
commit cac87faa09
2 changed files with 2 additions and 10 deletions

View file

@ -6,9 +6,7 @@
* Make sure nobh stuff is working properly for cows
* Do actual block accounting
* Check compat and incompat flags on the inode
* Add virtual filesystems, mountable snapshots
* Get rid of struct ctree_path, limiting tree levels held at one time
* EEXIST for dirs instead of hash overflow
* Release
* Do real tree locking
* Add extent mirroring (backup copies of blocks)
@ -20,10 +18,3 @@
* fsck
* Scrub & defrag
---
metata FS ideas:
mount metadata FS on /sys/fs/btrfs/dev/
subvolumes in /sys/fs/btrfs/dev/fs/
snapshots in /sys/fs/btrfs/dev/fs/snapshots
mount -o bind
ioctl to create a snapshot

View file

@ -15,7 +15,8 @@ extern struct kmem_cache *btrfs_path_cachep;
#define BTRFS_ROOT_TREE_OBJECTID 1ULL
#define BTRFS_EXTENT_TREE_OBJECTID 2ULL
#define BTRFS_FS_TREE_OBJECTID 3ULL
#define BTRFS_FIRST_FREE_OBJECTID 4ULL
#define BTRFS_ROOT_TREE_DIR_OBJECTID 4ULL
#define BTRFS_FIRST_FREE_OBJECTID 5ULL
/*
* we can actually store much bigger names, but lets not confuse the rest