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| author | Filipe Manana <fdmanana@gmail.com> | 2014-02-25 14:15:12 +0000 |
|---|---|---|
| committer | Josef Bacik <jbacik@fb.com> | 2014-03-10 15:16:56 -0400 |
| commit | cbc0e9287d710ce7dce5f8daf667729e83316c45 (patch) | |
| tree | abd3c0c847c07464186b86afb9cea66473f024ed /Documentation/parport-lowlevel.txt | |
| parent | e84752d434b5cca0869e906e7b94d0531b25c6d3 (diff) | |
Btrfs: remove unneeded field / smaller extent_map structure
We don't need to have an unsigned int field in the extent_map struct
to tell us whether the extent map is in the inode's extent_map tree or
not. We can use the rb_node struct field and the RB_CLEAR_NODE and
RB_EMPTY_NODE macros to achieve the same task.
This reduces sizeof(struct extent_map) from 152 bytes to 144 bytes (on a
64 bits system).
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Diffstat (limited to 'Documentation/parport-lowlevel.txt')
0 files changed, 0 insertions, 0 deletions