diff options
| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-05-23 20:25:44 +0200 |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-06-10 16:41:10 +0200 |
| commit | d4b961576df2769b936bd967b01e8c607c3c9ad8 (patch) | |
| tree | 3d5d31cb7b4ba31a5b8232d0cd0edac2cf368fae /Kbuild | |
| parent | nilfs2: remove useless b_low and b_high fields from nilfs_bmap struct (diff) | |
| download | linux-d4b961576df2769b936bd967b01e8c607c3c9ad8.tar.xz linux-d4b961576df2769b936bd967b01e8c607c3c9ad8.zip | |
nilfs2: remove bmap pointer operations
Previously, the bmap codes of nilfs used three types of function
tables. The abuse of indirect function calls decreased source
readability and suffered many indirect jumps which would confuse
branch prediction of processors.
This eliminates one type of the function tables,
nilfs_bmap_ptr_operations, which was used to dispatch low level
pointer operations of the nilfs bmap.
This adds a new integer variable "b_ptr_type" to nilfs_bmap struct,
and uses the value to select the pointer operations.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions