Commit Graph

4 Commits

Author SHA1 Message Date
Qu Wenruo
e9a28dc52a btrfs: rename tree_entry to rb_simple_node and export it
Structure tree_entry provides a very simple rb_tree which only uses
bytenr as search index.

That tree_entry is used in 3 structures: backref_node, mapping_node and
tree_block.

Since we're going to make backref_node independnt from relocation, it's
a good time to extract the tree_entry into rb_simple_node, and export it
into misc.h.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2020-05-25 11:25:19 +02:00
David Sterba
79c8264e44 btrfs: add 64bit safe helper for power of two checks
As is_power_of_two takes unsigned long, it's not safe on 32bit
architectures, but we could pass any u64 value in seveal places. Add a
separate helper and also an alias that better expresses the purpose for
which the helper is used.

Signed-off-by: David Sterba <dsterba@suse.com>
2019-11-18 12:46:50 +01:00
David Sterba
784352fe0b btrfs: move math functions to misc.h
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: David Sterba <dsterba@suse.com>
2019-09-09 14:59:15 +02:00
David Sterba
602cbe91fb btrfs: move cond_wake_up functions out of ctree
The file ctree.h serves as a header for everything and has become quite
bloated. Split some helpers that are generic and create a new file that
should be the catch-all for code that's not btrfs-specific.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: David Sterba <dsterba@suse.com>
2019-09-09 14:59:15 +02:00