| commit | a619e59c075c66e530a88e57b45bb0417e2f4fff | [log] [tgz] |
|---|---|---|
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | Mon Jul 24 14:28:02 2017 +1000 |
| committer | Michael Ellerman <mpe@ellerman.id.au> | Wed Aug 23 22:28:38 2017 +1000 |
| tree | 5f725ed75bdccc3bbd715ae8fb400ae0e55062b2 | |
| parent | b426e4bd77fa2f03723cc0bada80b00c664f67da [diff] |
powerpc/mm: Optimize detection of thread local mm's Instead of comparing the whole CPU mask every time, let's keep a counter of how many bits are set in the mask. Thus testing for a local mm only requires testing if that counter is 1 and the current CPU bit is set in the mask. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>