2 Commits

Author	SHA1	Message	Date
Jan Schmidt	8da6d5815c	Btrfs: added btrfs_find_all_roots() ... This function gets a byte number (a data extent), collects all the leafs pointing to it and walks up the trees to find all fs roots pointing to those leafs. It also returns the list of all leafs pointing to that extent. It does proper locking for the involved trees, can be used on busy file systems and honors delayed refs. Signed-off-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>	2012-01-04 16:26:38 +01:00
Jan Schmidt	a542ad1baf	btrfs: added helper functions to iterate backrefs ... These helper functions iterate back references and call a function for each backref. There is also a function to resolve an inode to a path in the file system. Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>	2011-09-29 12:54:27 +02:00