| commit | 801a57365fc836d7ec866e2069d0b21d79925c1e | [log] [tgz] |
|---|---|---|
| author | Yury Norov <yury.norov@gmail.com> | Sat Aug 14 14:17:10 2021 -0700 |
| committer | Yury Norov <yury.norov@gmail.com> | Sat Jan 15 08:47:31 2022 -0800 |
| tree | 76af2ac9496f91c85eb00a66be42235c82a1bbc6 | |
| parent | 749443de8dde3b8b420ee8b4daac4d929a6adeb9 [diff] |
mm/percpu: micro-optimize pcpu_is_populated() bitmap_next_clear_region() calls find_next_zero_bit() and find_next_bit() sequentially to find a range of clear bits. In case of pcpu_is_populated() there's a chance to return earlier if bitmap has all bits set. Signed-off-by: Yury Norov <yury.norov@gmail.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Dennis Zhou <dennis@kernel.org>