kernel/linux.git/fs/btrfs/misc.h, branch linux-6.0.y

btrfs: use correct header for div_u64 in misc.h

2021-09-07T12:29:50+00:00

asm/do_div.h is for div_u64, but it is found in math64.h. This change will make compiler job easier and prevent compiler errors in situation where compiler will not find math64.h from another paths. Signed-off-by: Kari Argillander Reviewed-by: David Sterba Signed-off-by: David Sterba

btrfs: rename tree_entry to rb_simple_node and export it

2020-05-25T09:25:19+00:00

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 Reviewed-by: David Sterba Signed-off-by: David Sterba

btrfs: add 64bit safe helper for power of two checks

2019-11-18T11:46:50+00:00

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

btrfs: move math functions to misc.h

2019-09-09T12:59:15+00:00

Reviewed-by: Johannes Thumshirn Signed-off-by: David Sterba

btrfs: move cond_wake_up functions out of ctree

2019-09-09T12:59:15+00:00

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 Signed-off-by: David Sterba