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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2017-07-24 07:28:02 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-08-23 15:28:38 +0300 |
| commit | a619e59c075c66e530a88e57b45bb0417e2f4fff (patch) | |
| tree | 5f725ed75bdccc3bbd715ae8fb400ae0e55062b2 /arch/powerpc/mm/mmu_context.c | |
| parent | b426e4bd77fa2f03723cc0bada80b00c664f67da (diff) | |
| download | linux-a619e59c075c66e530a88e57b45bb0417e2f4fff.tar.xz | |
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>
Diffstat (limited to 'arch/powerpc/mm/mmu_context.c')
0 files changed, 0 insertions, 0 deletions