diff options
| author | Fan Li <[email protected]> | 2017-11-07 19:14:24 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <[email protected]> | 2017-11-09 09:43:09 -0800 |
| commit | 974565744955b6154a93c85b77cb94026c85ff5a (patch) | |
| tree | fefdedfa4ff3872c5a10affb50ebcd47cba59927 /scripts/gcc-plugins/latent_entropy_plugin.c | |
| parent | 74986213adaff2ceab81fc0bb29dbb80d05665b3 (diff) | |
f2fs: optimize the way of traversing free_nid_bitmap
We call scan_free_nid_bits only when there isn't many
free nids left, it means that marked bits in free_nid_bitmap
are supposed to be few, use find_next_bit_le is more
efficient in such case.
According to my tests, use find_next_bit_le instead of
test_bit_le will cut down the traversal time to one
third of its original.
Signed-off-by: Fan li <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
Diffstat (limited to 'scripts/gcc-plugins/latent_entropy_plugin.c')
0 files changed, 0 insertions, 0 deletions