Btrfs: use a dedicated inode num for root root dir (cac87faa) · Commits · e / devices / android_kernel_oneplus_sm7250

fs/btrfs/TODO

+0 −9

Original line number	Diff line number	Diff line
		@@ -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

+2 −1

Original line number	Diff line number	Diff line
		@@ -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